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Storm Prediction Center

SPC Day 1 Fire Weather Outlook

Storm Prediction Center
3 weeks ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1133 AM CDT Mon Jul 06 2026 Valid 061700Z - 071200Z ...Morning Update... The forecast remains on track for dry/windy conditions and isolated dry thunderstorms across portions of the Four Corners and Great Basin this afternoon. Residual mid-level moisture -- as portrayed by REV's 12z sounding and various afternoon forecast soundings for the rest of the region -- will interact with an ejecting shortwave trough and daytime instability to develop high based convection. Dry sub-cloud layers and 0.6-0.8" PWATs will encourage less precipitation efficiency initially, maintaining lightning ignition potential where critically dry fuels exist. A transition to a mixed wet/dry thunderstorm threat will occur in the evening as PWATs increase, most likely in northwestern NM and eastern AZ. See the previous discussion for more information. ..Elizalde-Garcia.. 07/06/2026 .PREV DISCUSSION... /ISSUED 0120 AM CDT Mon Jul 06 2026/ ...Synopsis... A combination of dry thunderstorms and dry/windy conditions will pose fire weather concerns for portions of the Four Corners and northern Great Basin for today. Early-morning water-vapor imagery continues to show an upper ridge over the Four Corners region with an embedded shortwave trough evident across the northern Great Basin. This feature will promote not only thunderstorm chances across much of the Great Basin, but should also result in dry/windy conditions across parts of NV, UT, and AZ. ...Dry Thunderstorms... The 00 UTC MFR RAOB sampled a PWAT value of 0.96 inches, which is higher than previously anticipated by model guidance. Consequently, MRMS QPE and surface stations have reported pockets of wetting rainfall up to 0.25 inches associated with thunderstorms across southern OR late Sunday evening/early Monday morning. Regional soundings further east into the Four Corners region sampled a drier air mass (especially within the boundary layer), but GOES PWAT imagery suggests higher-quality moisture is advecting northward into western NV ahead of the upper-level disturbance. This will likely favor wet thunderstorms across northern CA into southern OR where most guidance shows a consistent signal for wetting rainfall, which warranted removal from the dry thunderstorm risk area. A mix of wet and dry thunderstorms across the CA/OR/NV tri-state region should transition to predominantly dry thunderstorms with southeastward extent towards the Four Corners region on the fringe of the mid-level moisture plume. In general, fuels remain very dry across the broader region and should support lightning ignitions outside of where heavier precipitation cores have occurred (mainly over northern NV/southern OR) over the past 12-24 hours. ...Eastern Nevada into Utah and Arizona... Modest surface pressure falls across the northern Great Basin through the afternoon will result in increasing southerly winds across southeast NV into adjacent portions of UT and AZ. Latest ensemble guidance continues to show reasonably strong probabilities for sustained winds near 15 mph with gusts upwards of 20-30 mph. Relative humidity values should fall to near 15% as temperatures climb into the 90s, resulting in areas of elevated fire weather conditions. While confidence in elevated conditions is greatest across southeast NV into southwest UT, more aggressive solutions suggests elevated conditions may extend into eastern UT. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook

Storm Prediction Center
3 weeks ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1133 AM CDT Mon Jul 06 2026 Valid 061700Z - 071200Z ...Morning Update... The forecast remains on track for dry/windy conditions and isolated dry thunderstorms across portions of the Four Corners and Great Basin this afternoon. Residual mid-level moisture -- as portrayed by REV's 12z sounding and various afternoon forecast soundings for the rest of the region -- will interact with an ejecting shortwave trough and daytime instability to develop high based convection. Dry sub-cloud layers and 0.6-0.8" PWATs will encourage less precipitation efficiency initially, maintaining lightning ignition potential where critically dry fuels exist. A transition to a mixed wet/dry thunderstorm threat will occur in the evening as PWATs increase, most likely in northwestern NM and eastern AZ. See the previous discussion for more information. ..Elizalde-Garcia.. 07/06/2026 .PREV DISCUSSION... /ISSUED 0120 AM CDT Mon Jul 06 2026/ ...Synopsis... A combination of dry thunderstorms and dry/windy conditions will pose fire weather concerns for portions of the Four Corners and northern Great Basin for today. Early-morning water-vapor imagery continues to show an upper ridge over the Four Corners region with an embedded shortwave trough evident across the northern Great Basin. This feature will promote not only thunderstorm chances across much of the Great Basin, but should also result in dry/windy conditions across parts of NV, UT, and AZ. ...Dry Thunderstorms... The 00 UTC MFR RAOB sampled a PWAT value of 0.96 inches, which is higher than previously anticipated by model guidance. Consequently, MRMS QPE and surface stations have reported pockets of wetting rainfall up to 0.25 inches associated with thunderstorms across southern OR late Sunday evening/early Monday morning. Regional soundings further east into the Four Corners region sampled a drier air mass (especially within the boundary layer), but GOES PWAT imagery suggests higher-quality moisture is advecting northward into western NV ahead of the upper-level disturbance. This will likely favor wet thunderstorms across northern CA into southern OR where most guidance shows a consistent signal for wetting rainfall, which warranted removal from the dry thunderstorm risk area. A mix of wet and dry thunderstorms across the CA/OR/NV tri-state region should transition to predominantly dry thunderstorms with southeastward extent towards the Four Corners region on the fringe of the mid-level moisture plume. In general, fuels remain very dry across the broader region and should support lightning ignitions outside of where heavier precipitation cores have occurred (mainly over northern NV/southern OR) over the past 12-24 hours. ...Eastern Nevada into Utah and Arizona... Modest surface pressure falls across the northern Great Basin through the afternoon will result in increasing southerly winds across southeast NV into adjacent portions of UT and AZ. Latest ensemble guidance continues to show reasonably strong probabilities for sustained winds near 15 mph with gusts upwards of 20-30 mph. Relative humidity values should fall to near 15% as temperatures climb into the 90s, resulting in areas of elevated fire weather conditions. While confidence in elevated conditions is greatest across southeast NV into southwest UT, more aggressive solutions suggests elevated conditions may extend into eastern UT. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook

Storm Prediction Center
3 weeks ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1133 AM CDT Mon Jul 06 2026 Valid 061700Z - 071200Z ...Morning Update... The forecast remains on track for dry/windy conditions and isolated dry thunderstorms across portions of the Four Corners and Great Basin this afternoon. Residual mid-level moisture -- as portrayed by REV's 12z sounding and various afternoon forecast soundings for the rest of the region -- will interact with an ejecting shortwave trough and daytime instability to develop high based convection. Dry sub-cloud layers and 0.6-0.8" PWATs will encourage less precipitation efficiency initially, maintaining lightning ignition potential where critically dry fuels exist. A transition to a mixed wet/dry thunderstorm threat will occur in the evening as PWATs increase, most likely in northwestern NM and eastern AZ. See the previous discussion for more information. ..Elizalde-Garcia.. 07/06/2026 .PREV DISCUSSION... /ISSUED 0120 AM CDT Mon Jul 06 2026/ ...Synopsis... A combination of dry thunderstorms and dry/windy conditions will pose fire weather concerns for portions of the Four Corners and northern Great Basin for today. Early-morning water-vapor imagery continues to show an upper ridge over the Four Corners region with an embedded shortwave trough evident across the northern Great Basin. This feature will promote not only thunderstorm chances across much of the Great Basin, but should also result in dry/windy conditions across parts of NV, UT, and AZ. ...Dry Thunderstorms... The 00 UTC MFR RAOB sampled a PWAT value of 0.96 inches, which is higher than previously anticipated by model guidance. Consequently, MRMS QPE and surface stations have reported pockets of wetting rainfall up to 0.25 inches associated with thunderstorms across southern OR late Sunday evening/early Monday morning. Regional soundings further east into the Four Corners region sampled a drier air mass (especially within the boundary layer), but GOES PWAT imagery suggests higher-quality moisture is advecting northward into western NV ahead of the upper-level disturbance. This will likely favor wet thunderstorms across northern CA into southern OR where most guidance shows a consistent signal for wetting rainfall, which warranted removal from the dry thunderstorm risk area. A mix of wet and dry thunderstorms across the CA/OR/NV tri-state region should transition to predominantly dry thunderstorms with southeastward extent towards the Four Corners region on the fringe of the mid-level moisture plume. In general, fuels remain very dry across the broader region and should support lightning ignitions outside of where heavier precipitation cores have occurred (mainly over northern NV/southern OR) over the past 12-24 hours. ...Eastern Nevada into Utah and Arizona... Modest surface pressure falls across the northern Great Basin through the afternoon will result in increasing southerly winds across southeast NV into adjacent portions of UT and AZ. Latest ensemble guidance continues to show reasonably strong probabilities for sustained winds near 15 mph with gusts upwards of 20-30 mph. Relative humidity values should fall to near 15% as temperatures climb into the 90s, resulting in areas of elevated fire weather conditions. While confidence in elevated conditions is greatest across southeast NV into southwest UT, more aggressive solutions suggests elevated conditions may extend into eastern UT. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC - No watches are valid as of Mon Jul 6 16:35:02 UTC 2026

Storm Prediction Center
3 weeks ago
No watches are valid as of Mon Jul 6 16:35:02 UTC 2026.

SPC - No MDs are in effect as of Mon Jul 6 16:35:02 UTC 2026

Storm Prediction Center
3 weeks ago
No Mesoscale Discussions are in effect as of Mon Jul 6 16:35:02 UTC 2026.

SPC Jul 6, 2026 1630 UTC Day 1 Convective Outlook

Storm Prediction Center
3 weeks ago
SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1128 AM CDT Mon Jul 06 2026 Valid 061630Z - 071200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PORTIONS OF THE MID-ATLANTIC...NORTHERN PLAINS...AND THE ARKLATEX REGION... ...SUMMARY... Widely scattered severe thunderstorms capable of large hail and severe wind gusts appear possible across the eastern Dakotas and western Minnesota this afternoon and evening. Isolated to scattered damaging wind gusts will also be possible with the strongest storms in the southern Mid-Atlantic, Carolinas, and ArkLaTex regions. ...MN/ND... Morning water vapory imagery shows a fast-moving shortwave trough over southern Manitoba, with its associated surface cold front sagging southward across ND. This front will serve as the focus for scattered thunderstorm development by mid-afternoon from northern MN into eastern ND. Strong heating ahead of the front and dewpoints near 70F will yield MLCAPE over 3000 J/kg. Forecast soundings show relatively steep mid-level lapse rates and favorable deep-layer shear for supercells capable of large hail and severe wind gusts. These storms may persist through the evening, spreading southward into central MN and eastern SD. ...Mid Atlantic/Carolinas... Another day of scattered afternoon thunderstorms will affect much of the Mid Atlantic and Carolinas region today. Vertical shear and steering flow is rather weak, suggesting storms will be poorly organized. However, strong heating and steep low-level lapse rates, combined with substantial CAPE in forecast soundings, suggest that the strongest cells will pose the risk of damaging wind gusts over a relatively broad area again today. ...AR/LA/OK/TX... Strong heating and ample low-level moisture will lead to scattered afternoon thunderstorms again today over much of AR, southeast OK, northeast TX, and northern LA. This is near a mid-level trough where lapse rates and mid-level temperatures are more favorable for robust up/downdrafts capable of damaging wind gusts. Have opted for a small SLGT risk for parts of this area where convective coverage appears highest. ...Northern UT into WY... Scattered high-based fast-moving thunderstorms are expected this afternoon over northern UT, moving northeastward into western and northern WY. The strongest of these cells will pose a risk of damaging wind gusts. ..Hart/Weinman.. 07/06/2026 Read more

SPC Jul 6, 2026 1630 UTC Day 1 Convective Outlook

Storm Prediction Center
3 weeks ago
SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1128 AM CDT Mon Jul 06 2026 Valid 061630Z - 071200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PORTIONS OF THE MID-ATLANTIC...NORTHERN PLAINS...AND THE ARKLATEX REGION... ...SUMMARY... Widely scattered severe thunderstorms capable of large hail and severe wind gusts appear possible across the eastern Dakotas and western Minnesota this afternoon and evening. Isolated to scattered damaging wind gusts will also be possible with the strongest storms in the southern Mid-Atlantic, Carolinas, and ArkLaTex regions. ...MN/ND... Morning water vapory imagery shows a fast-moving shortwave trough over southern Manitoba, with its associated surface cold front sagging southward across ND. This front will serve as the focus for scattered thunderstorm development by mid-afternoon from northern MN into eastern ND. Strong heating ahead of the front and dewpoints near 70F will yield MLCAPE over 3000 J/kg. Forecast soundings show relatively steep mid-level lapse rates and favorable deep-layer shear for supercells capable of large hail and severe wind gusts. These storms may persist through the evening, spreading southward into central MN and eastern SD. ...Mid Atlantic/Carolinas... Another day of scattered afternoon thunderstorms will affect much of the Mid Atlantic and Carolinas region today. Vertical shear and steering flow is rather weak, suggesting storms will be poorly organized. However, strong heating and steep low-level lapse rates, combined with substantial CAPE in forecast soundings, suggest that the strongest cells will pose the risk of damaging wind gusts over a relatively broad area again today. ...AR/LA/OK/TX... Strong heating and ample low-level moisture will lead to scattered afternoon thunderstorms again today over much of AR, southeast OK, northeast TX, and northern LA. This is near a mid-level trough where lapse rates and mid-level temperatures are more favorable for robust up/downdrafts capable of damaging wind gusts. Have opted for a small SLGT risk for parts of this area where convective coverage appears highest. ...Northern UT into WY... Scattered high-based fast-moving thunderstorms are expected this afternoon over northern UT, moving northeastward into western and northern WY. The strongest of these cells will pose a risk of damaging wind gusts. ..Hart/Weinman.. 07/06/2026 Read more

SPC Jul 6, 2026 1630 UTC Day 1 Convective Outlook

Storm Prediction Center
3 weeks ago
SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1128 AM CDT Mon Jul 06 2026 Valid 061630Z - 071200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PORTIONS OF THE MID-ATLANTIC...NORTHERN PLAINS...AND THE ARKLATEX REGION... ...SUMMARY... Widely scattered severe thunderstorms capable of large hail and severe wind gusts appear possible across the eastern Dakotas and western Minnesota this afternoon and evening. Isolated to scattered damaging wind gusts will also be possible with the strongest storms in the southern Mid-Atlantic, Carolinas, and ArkLaTex regions. ...MN/ND... Morning water vapory imagery shows a fast-moving shortwave trough over southern Manitoba, with its associated surface cold front sagging southward across ND. This front will serve as the focus for scattered thunderstorm development by mid-afternoon from northern MN into eastern ND. Strong heating ahead of the front and dewpoints near 70F will yield MLCAPE over 3000 J/kg. Forecast soundings show relatively steep mid-level lapse rates and favorable deep-layer shear for supercells capable of large hail and severe wind gusts. These storms may persist through the evening, spreading southward into central MN and eastern SD. ...Mid Atlantic/Carolinas... Another day of scattered afternoon thunderstorms will affect much of the Mid Atlantic and Carolinas region today. Vertical shear and steering flow is rather weak, suggesting storms will be poorly organized. However, strong heating and steep low-level lapse rates, combined with substantial CAPE in forecast soundings, suggest that the strongest cells will pose the risk of damaging wind gusts over a relatively broad area again today. ...AR/LA/OK/TX... Strong heating and ample low-level moisture will lead to scattered afternoon thunderstorms again today over much of AR, southeast OK, northeast TX, and northern LA. This is near a mid-level trough where lapse rates and mid-level temperatures are more favorable for robust up/downdrafts capable of damaging wind gusts. Have opted for a small SLGT risk for parts of this area where convective coverage appears highest. ...Northern UT into WY... Scattered high-based fast-moving thunderstorms are expected this afternoon over northern UT, moving northeastward into western and northern WY. The strongest of these cells will pose a risk of damaging wind gusts. ..Hart/Weinman.. 07/06/2026 Read more

SPC Jul 6, 2026 1300 UTC Day 1 Convective Outlook

Storm Prediction Center
3 weeks 1 day ago
SPC 1300Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0731 AM CDT Mon Jul 06 2026 Valid 061300Z - 071200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE EASTERN DAKOTAS AND WESTERN MINNESOTA AS WELL AS CENTRAL VIRGINIA INTO FAR NORTH-CENTRAL NORTH CAROLINA... ...SUMMARY... Widely scattered severe thunderstorms capable of large to very large hail and severe wind gusts appear possible across the eastern Dakotas and western Minnesota this afternoon and evening. Isolated to scattered damaging wind gusts will also be possible with the strongest storms in the southern Mid-Atlantic and Carolinas. ...Upper Mississippi Valley into north-central Nebraska... Early-morning surface analysis reveals a low over far southwest Manitoba, with a cold front extending southwestward from this low into southeast MT and then westward across south-central MT. This surface low and associated cold front precede a well-defined shortwave trough currently moving through southern Saskatchewan. This shortwave is forecast to continue eastward today, with the attendant surface low and cold front progressing eastward as well. A warm and moist airmass will precede this cold front, with afternoon highs ranging from the upper 80s/low 90s across eastern SD/northwest MN into the upper 90s/low 100s from central SD into central NE. Boundary-layer mixing will be offset by modest low-level moisture advection, likely keeping dewpoints in the mid to upper 60s over much of the region. These warm and moist conditions will help destabilize the airmass, despite relatively warm mid-level temperatures at the base of a northeastward-advecting EML. Over 2000 J/kg of MLCAPE will likely be in place by the mid afternoon, with a pocket of 3000 J/kg possible across southeast SD by the late afternoon. Thunderstorm development is anticipated first across western ND and northwest MN as the cold front interacts with this buoyant airmass, with ascent along the front augmented by modest lift along the southern periphery of the shortwave trough. Enhanced mid-level flow will exist within the base of this shortwave as well, with the resulting combination of buoyancy and shear supportive of supercells early in the convective cycle, with large hail as the primary hazard. Some instances of hail in excess of two inches are possible. A somewhat quick transition to a more linear mode appears likely given the frontal forcing, close storm proximity, and likelihood of strong cold pools. Severe gusts will be the primary hazard once this upscale growth occurs. Lower storm coverage is anticipated with southward extent from central SD into northern NE. Here, weaker shear is expected to limit the potential for organized storm modes, though isolated occurrences of hail and severe wind gusts appear possible with the strongest storms. ...Mid-Atlantic into the Carolinas... A hot and very moist boundary layer is forecast in the vicinity of a lee trough this afternoon, with MLCAPE generally from 1500-2500 J/kg. Forcing for ascent will be weak, with convergence along the lee trough as the primary impetus for convective initiation. Vertical shear will be weak, but scattered coverage and an outflow-dominant storm mode will support the potential for upscale growth into loosely organized clusters. Relatively high storm bases and steep low-level lapse rates will enhance downdraft potential with a risk for damaging wind gusts with the strongest storms. Highest coverage is expected from central VA into far north-central NC. ...Northern Great Basin into southern Montana and northern Wyoming... Early-morning satellite imagery shows a shortwave trough moving into southwestern ID. This shortwave is forecast to continue northeastward across ID and western MT, moving within the northwestern periphery of an upper ridge centered over the Four Corners. Mid-level moisture and ascent associated with this shortwave will result in isolated to scattered thunderstorms across the region during the afternoon and evening. Moderate mid-level flow (i.e. 35-40 kt winds at 500 mb) will accompany this wave as well, resulting in sufficient deep-layer shear to support at least episodic supercell and bowing structures capable of damaging winds and isolated hail. ...Lower MS Valley... A notable vorticity maximum is currently moving southward from southwest MO into northwest AR, with slow southward/southeastward progression of this vorticity maximum expected throughout the day. Ample low-level moisture exists over the region, supporting diurnal airmass destabilization and the development of strong buoyancy (i.e. MLCAPE from 2000 to 3000 J/kg) by the afternoon. Scattered to numerous thunderstorms are anticipated as the vorticity max moves through this environment. Vertical shear will be weak, limiting storm organization, but a few strong downdrafts are still possible. Isolated occurrences of marginally severe hail are possible as well. ..Mosier/Dean.. 07/06/2026 Read more

SPC Jul 6, 2026 1300 UTC Day 1 Convective Outlook

Storm Prediction Center
3 weeks 1 day ago
SPC 1300Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0731 AM CDT Mon Jul 06 2026 Valid 061300Z - 071200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE EASTERN DAKOTAS AND WESTERN MINNESOTA AS WELL AS CENTRAL VIRGINIA INTO FAR NORTH-CENTRAL NORTH CAROLINA... ...SUMMARY... Widely scattered severe thunderstorms capable of large to very large hail and severe wind gusts appear possible across the eastern Dakotas and western Minnesota this afternoon and evening. Isolated to scattered damaging wind gusts will also be possible with the strongest storms in the southern Mid-Atlantic and Carolinas. ...Upper Mississippi Valley into north-central Nebraska... Early-morning surface analysis reveals a low over far southwest Manitoba, with a cold front extending southwestward from this low into southeast MT and then westward across south-central MT. This surface low and associated cold front precede a well-defined shortwave trough currently moving through southern Saskatchewan. This shortwave is forecast to continue eastward today, with the attendant surface low and cold front progressing eastward as well. A warm and moist airmass will precede this cold front, with afternoon highs ranging from the upper 80s/low 90s across eastern SD/northwest MN into the upper 90s/low 100s from central SD into central NE. Boundary-layer mixing will be offset by modest low-level moisture advection, likely keeping dewpoints in the mid to upper 60s over much of the region. These warm and moist conditions will help destabilize the airmass, despite relatively warm mid-level temperatures at the base of a northeastward-advecting EML. Over 2000 J/kg of MLCAPE will likely be in place by the mid afternoon, with a pocket of 3000 J/kg possible across southeast SD by the late afternoon. Thunderstorm development is anticipated first across western ND and northwest MN as the cold front interacts with this buoyant airmass, with ascent along the front augmented by modest lift along the southern periphery of the shortwave trough. Enhanced mid-level flow will exist within the base of this shortwave as well, with the resulting combination of buoyancy and shear supportive of supercells early in the convective cycle, with large hail as the primary hazard. Some instances of hail in excess of two inches are possible. A somewhat quick transition to a more linear mode appears likely given the frontal forcing, close storm proximity, and likelihood of strong cold pools. Severe gusts will be the primary hazard once this upscale growth occurs. Lower storm coverage is anticipated with southward extent from central SD into northern NE. Here, weaker shear is expected to limit the potential for organized storm modes, though isolated occurrences of hail and severe wind gusts appear possible with the strongest storms. ...Mid-Atlantic into the Carolinas... A hot and very moist boundary layer is forecast in the vicinity of a lee trough this afternoon, with MLCAPE generally from 1500-2500 J/kg. Forcing for ascent will be weak, with convergence along the lee trough as the primary impetus for convective initiation. Vertical shear will be weak, but scattered coverage and an outflow-dominant storm mode will support the potential for upscale growth into loosely organized clusters. Relatively high storm bases and steep low-level lapse rates will enhance downdraft potential with a risk for damaging wind gusts with the strongest storms. Highest coverage is expected from central VA into far north-central NC. ...Northern Great Basin into southern Montana and northern Wyoming... Early-morning satellite imagery shows a shortwave trough moving into southwestern ID. This shortwave is forecast to continue northeastward across ID and western MT, moving within the northwestern periphery of an upper ridge centered over the Four Corners. Mid-level moisture and ascent associated with this shortwave will result in isolated to scattered thunderstorms across the region during the afternoon and evening. Moderate mid-level flow (i.e. 35-40 kt winds at 500 mb) will accompany this wave as well, resulting in sufficient deep-layer shear to support at least episodic supercell and bowing structures capable of damaging winds and isolated hail. ...Lower MS Valley... A notable vorticity maximum is currently moving southward from southwest MO into northwest AR, with slow southward/southeastward progression of this vorticity maximum expected throughout the day. Ample low-level moisture exists over the region, supporting diurnal airmass destabilization and the development of strong buoyancy (i.e. MLCAPE from 2000 to 3000 J/kg) by the afternoon. Scattered to numerous thunderstorms are anticipated as the vorticity max moves through this environment. Vertical shear will be weak, limiting storm organization, but a few strong downdrafts are still possible. Isolated occurrences of marginally severe hail are possible as well. ..Mosier/Dean.. 07/06/2026 Read more

SPC Jul 6, 2026 1300 UTC Day 1 Convective Outlook

Storm Prediction Center
3 weeks 1 day ago
SPC 1300Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0731 AM CDT Mon Jul 06 2026 Valid 061300Z - 071200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE EASTERN DAKOTAS AND WESTERN MINNESOTA AS WELL AS CENTRAL VIRGINIA INTO FAR NORTH-CENTRAL NORTH CAROLINA... ...SUMMARY... Widely scattered severe thunderstorms capable of large to very large hail and severe wind gusts appear possible across the eastern Dakotas and western Minnesota this afternoon and evening. Isolated to scattered damaging wind gusts will also be possible with the strongest storms in the southern Mid-Atlantic and Carolinas. ...Upper Mississippi Valley into north-central Nebraska... Early-morning surface analysis reveals a low over far southwest Manitoba, with a cold front extending southwestward from this low into southeast MT and then westward across south-central MT. This surface low and associated cold front precede a well-defined shortwave trough currently moving through southern Saskatchewan. This shortwave is forecast to continue eastward today, with the attendant surface low and cold front progressing eastward as well. A warm and moist airmass will precede this cold front, with afternoon highs ranging from the upper 80s/low 90s across eastern SD/northwest MN into the upper 90s/low 100s from central SD into central NE. Boundary-layer mixing will be offset by modest low-level moisture advection, likely keeping dewpoints in the mid to upper 60s over much of the region. These warm and moist conditions will help destabilize the airmass, despite relatively warm mid-level temperatures at the base of a northeastward-advecting EML. Over 2000 J/kg of MLCAPE will likely be in place by the mid afternoon, with a pocket of 3000 J/kg possible across southeast SD by the late afternoon. Thunderstorm development is anticipated first across western ND and northwest MN as the cold front interacts with this buoyant airmass, with ascent along the front augmented by modest lift along the southern periphery of the shortwave trough. Enhanced mid-level flow will exist within the base of this shortwave as well, with the resulting combination of buoyancy and shear supportive of supercells early in the convective cycle, with large hail as the primary hazard. Some instances of hail in excess of two inches are possible. A somewhat quick transition to a more linear mode appears likely given the frontal forcing, close storm proximity, and likelihood of strong cold pools. Severe gusts will be the primary hazard once this upscale growth occurs. Lower storm coverage is anticipated with southward extent from central SD into northern NE. Here, weaker shear is expected to limit the potential for organized storm modes, though isolated occurrences of hail and severe wind gusts appear possible with the strongest storms. ...Mid-Atlantic into the Carolinas... A hot and very moist boundary layer is forecast in the vicinity of a lee trough this afternoon, with MLCAPE generally from 1500-2500 J/kg. Forcing for ascent will be weak, with convergence along the lee trough as the primary impetus for convective initiation. Vertical shear will be weak, but scattered coverage and an outflow-dominant storm mode will support the potential for upscale growth into loosely organized clusters. Relatively high storm bases and steep low-level lapse rates will enhance downdraft potential with a risk for damaging wind gusts with the strongest storms. Highest coverage is expected from central VA into far north-central NC. ...Northern Great Basin into southern Montana and northern Wyoming... Early-morning satellite imagery shows a shortwave trough moving into southwestern ID. This shortwave is forecast to continue northeastward across ID and western MT, moving within the northwestern periphery of an upper ridge centered over the Four Corners. Mid-level moisture and ascent associated with this shortwave will result in isolated to scattered thunderstorms across the region during the afternoon and evening. Moderate mid-level flow (i.e. 35-40 kt winds at 500 mb) will accompany this wave as well, resulting in sufficient deep-layer shear to support at least episodic supercell and bowing structures capable of damaging winds and isolated hail. ...Lower MS Valley... A notable vorticity maximum is currently moving southward from southwest MO into northwest AR, with slow southward/southeastward progression of this vorticity maximum expected throughout the day. Ample low-level moisture exists over the region, supporting diurnal airmass destabilization and the development of strong buoyancy (i.e. MLCAPE from 2000 to 3000 J/kg) by the afternoon. Scattered to numerous thunderstorms are anticipated as the vorticity max moves through this environment. Vertical shear will be weak, limiting storm organization, but a few strong downdrafts are still possible. Isolated occurrences of marginally severe hail are possible as well. ..Mosier/Dean.. 07/06/2026 Read more

SPC Jul 6, 2026 Day 4-8 Severe Weather Outlook

Storm Prediction Center
3 weeks 1 day ago
Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0400 AM CDT Mon Jul 06 2026 Valid 091200Z - 141200Z ...DISCUSSION... Medium-range model output continues to indicate the evolution of an increasingly prominent mid/upper high across the lower Colorado Valley and Plateau late this week into next weekend, which may continue expanding and encompassing a significant portion of the interior U.S. by early next week. How far north and northeast this builds remains unclear; however, a plume of very warm elevated mixed layer air advecting on strengthening flow around the northern through northeastern periphery of this anticyclonic regime will contribute to an environment conditionally conducive to organized severe thunderstorm development. It appears that this could focus anywhere from the central Canadian/U.S. border vicinity through the Great Lakes into the Northeast. By early next week (the Day 8-9 time frame), in particular, at least some output suggests that a vigorous short wave trough rounding the ridge may be accompanied by strong cyclogenesis, which could promote widespread strong to severe thunderstorm development across parts of New England into northern Mid Atlantic. Given the uncertainties associated with the extended time frame and model spread/discrepancies, severe weather probabilities remain less than 15 percent for this period, but it is possible that this could change sometime in later outlook updates for this period. Read more

SPC Jul 6, 2026 Day 4-8 Severe Weather Outlook

Storm Prediction Center
3 weeks 1 day ago
Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0400 AM CDT Mon Jul 06 2026 Valid 091200Z - 141200Z ...DISCUSSION... Medium-range model output continues to indicate the evolution of an increasingly prominent mid/upper high across the lower Colorado Valley and Plateau late this week into next weekend, which may continue expanding and encompassing a significant portion of the interior U.S. by early next week. How far north and northeast this builds remains unclear; however, a plume of very warm elevated mixed layer air advecting on strengthening flow around the northern through northeastern periphery of this anticyclonic regime will contribute to an environment conditionally conducive to organized severe thunderstorm development. It appears that this could focus anywhere from the central Canadian/U.S. border vicinity through the Great Lakes into the Northeast. By early next week (the Day 8-9 time frame), in particular, at least some output suggests that a vigorous short wave trough rounding the ridge may be accompanied by strong cyclogenesis, which could promote widespread strong to severe thunderstorm development across parts of New England into northern Mid Atlantic. Given the uncertainties associated with the extended time frame and model spread/discrepancies, severe weather probabilities remain less than 15 percent for this period, but it is possible that this could change sometime in later outlook updates for this period. Read more

SPC Jul 6, 2026 0730 UTC Day 3 Severe Thunderstorm Outlook

Storm Prediction Center
3 weeks 1 day ago
SPC 0730Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0231 AM CDT Mon Jul 06 2026 Valid 081200Z - 091200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS WEDNESDAY INTO WEDNESDAY NIGHT ACROSS PARTS OF THE CENTRAL GREAT PLAINS INTO UPPER MIDWEST... ...SUMMARY... Clusters of strong thunderstorms with potential to produce severe hail and wind may evolve across parts of the Upper Midwest into central Great Plains Wednesday through Wednesday night. ...Discussion... It appears that notable remnant mid-level troughing will begin to dig southeast of the Hudson Bay vicinity Wednesday through Wednesday night, while an upstream short wave trough pivots northeast then north of the Canadian Rockies toward the Northwest Territories. Within the westerlies to the south of this regime, subtle mid-level ridging may overspread the northern Rockies, with similar amplitude downstream troughing digging across the northern Great Plains, Upper Midwest and Great Lakes region. Beneath this regime, a weak cold front, perhaps reinforced by convective outflow in some locations, is forecast to overspread much of the remainder of the Upper Midwest/adjacent Great Lakes and middle Missouri Valley vicinity by late Wednesday night. This may be preceded across parts of the central Great Plains by conglomerate convective outflow emanating from considerable thunderstorm development spreading off the Laramie Range/Front Range vicinity, within steering flow trending northwesterly through the period. ...Great Plains/Upper Midwest... Steeper mid-level lapse rates associated with a remnant plume of elevated mixed-layer air may become increasingly confined to the higher plains during this period. However, seasonably high moisture content along/ahead of the southward advancing cold front may still become supportive of mixed-layer CAPE of 1500-2000+ J/kg with daytime heating. It remains uncertain whether an evolving cluster of storms, and/or a possible significant MCV emerging from it, will support continuing or renewed organized thunderstorm development posing a risk for severe wind gusts into and through the Upper Midwest during the day Wednesday. However, it is possible that destabilization in its wake could become sufficient to support strong thunderstorm development posing a risk for severe hail and wind, ahead of the southward advancing cold front later Wednesday into Wednesday night. Otherwise, guidance suggests considerable thunderstorm activity, initiating off the higher terrain of southeastern Wyoming through central Colorado by late Wednesday, may gradually intensify and consolidate within a more unstable environment near a broad/weak surface cyclone developing across the high plains. Aided by a nocturnally strengthening low-level jet, there appears at least potential for this activity to organize with potential to swaths of strong to severe surface gusts Wednesday evening, after initially posing a risk for severe hail and localized downbursts. ..Kerr.. 07/06/2026 Read more

SPC Jul 6, 2026 0730 UTC Day 3 Severe Thunderstorm Outlook

Storm Prediction Center
3 weeks 1 day ago
SPC 0730Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0231 AM CDT Mon Jul 06 2026 Valid 081200Z - 091200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS WEDNESDAY INTO WEDNESDAY NIGHT ACROSS PARTS OF THE CENTRAL GREAT PLAINS INTO UPPER MIDWEST... ...SUMMARY... Clusters of strong thunderstorms with potential to produce severe hail and wind may evolve across parts of the Upper Midwest into central Great Plains Wednesday through Wednesday night. ...Discussion... It appears that notable remnant mid-level troughing will begin to dig southeast of the Hudson Bay vicinity Wednesday through Wednesday night, while an upstream short wave trough pivots northeast then north of the Canadian Rockies toward the Northwest Territories. Within the westerlies to the south of this regime, subtle mid-level ridging may overspread the northern Rockies, with similar amplitude downstream troughing digging across the northern Great Plains, Upper Midwest and Great Lakes region. Beneath this regime, a weak cold front, perhaps reinforced by convective outflow in some locations, is forecast to overspread much of the remainder of the Upper Midwest/adjacent Great Lakes and middle Missouri Valley vicinity by late Wednesday night. This may be preceded across parts of the central Great Plains by conglomerate convective outflow emanating from considerable thunderstorm development spreading off the Laramie Range/Front Range vicinity, within steering flow trending northwesterly through the period. ...Great Plains/Upper Midwest... Steeper mid-level lapse rates associated with a remnant plume of elevated mixed-layer air may become increasingly confined to the higher plains during this period. However, seasonably high moisture content along/ahead of the southward advancing cold front may still become supportive of mixed-layer CAPE of 1500-2000+ J/kg with daytime heating. It remains uncertain whether an evolving cluster of storms, and/or a possible significant MCV emerging from it, will support continuing or renewed organized thunderstorm development posing a risk for severe wind gusts into and through the Upper Midwest during the day Wednesday. However, it is possible that destabilization in its wake could become sufficient to support strong thunderstorm development posing a risk for severe hail and wind, ahead of the southward advancing cold front later Wednesday into Wednesday night. Otherwise, guidance suggests considerable thunderstorm activity, initiating off the higher terrain of southeastern Wyoming through central Colorado by late Wednesday, may gradually intensify and consolidate within a more unstable environment near a broad/weak surface cyclone developing across the high plains. Aided by a nocturnally strengthening low-level jet, there appears at least potential for this activity to organize with potential to swaths of strong to severe surface gusts Wednesday evening, after initially posing a risk for severe hail and localized downbursts. ..Kerr.. 07/06/2026 Read more

SPC Day 2 Fire Weather Outlook

Storm Prediction Center
3 weeks 1 day ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0206 AM CDT Mon Jul 06 2026 Valid 071200Z - 081200Z ...Synopsis... Fire weather concerns will continue to be driven by a combination of dry thunderstorm potential as well as dry/windy conditions across portions of the West on Tuesday. A slight eastward shift of the upper ridge from the Four Corners into the central Rockies is expected through Tuesday evening. This will establish a more west/southwest flow regime across the West Coast that will be favorable for downslope flow off the northern Sierra Nevada and portions of the Cascades. Additionally, a plume of mid-level moisture will continue to spread east/northeast from the western Great Basin towards the Four Corners/central Rockies that will promote dry thunderstorm potential across a broad area. ...Dry Thunderstorms... Mid-level moisture spreading eastward over the next 24 hours will impinge on a plume of steep mid-level lapse rates and dry boundary-layer conditions currently in place across the Four Corners and central Rockies. This should promote adequate buoyancy for weak convection by Tuesday afternoon. PWAT values are currently forecast to range from 0.75 inches from the northern Great Basin to around 0.5 inch across UT and western CO. Forcing for ascent driven by weak perturbations within the mean southwesterly flow regime over the northern Great Basin should decrease eastward into the Four Corners were orographic ascent will yield more isolated thunderstorms. This will likely result in a mix of wet and dry thunderstorms across the northern Great Basin with increasingly dry thunderstorms with east/southeastward extent. Portions of central OR were removed from the risk area owing to the potential for wetting rainfall over the next 24 hours. However, portions of the area may be at risk for dry lightning if rainfall amounts are more limited than currently anticipated. ...Cascades into the northern Sierra Nevada... The establishment of a southwest flow regime across the Cascades and northern Sierra Nevada will promote strengthening downslope flow along the eastern slopes. Latest forecast guidance suggests that the driest and windiest conditions will emerge across northeast CA/northwest NV where sustained winds between 15-20 mph will likely coincide with 10-15% RH minimums. Further north, cooler conditions will result in more sparse coverage of elevated conditions, but favored gaps will likely see 15-20 mph winds with RH values falling into the 15-25% range by late afternoon. ...Eastern Nevada into western Utah... Another day of dry and windy conditions is expected for Tuesday as weak troughing across the northern Great Basin drives an uptick in southwesterly flow across the region. Confidence in 10-15% RH minimums is fairly high given downslope trajectories off the southern Sierra Nevada over the preceding 24 hours, and latest HREF/REFS guidance suggests wind speeds will likely reach 15 mph for many locations, resulting in a few hours of sustained elevated conditions. ..Moore.. 07/06/2026 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook

Storm Prediction Center
3 weeks 1 day ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0206 AM CDT Mon Jul 06 2026 Valid 071200Z - 081200Z ...Synopsis... Fire weather concerns will continue to be driven by a combination of dry thunderstorm potential as well as dry/windy conditions across portions of the West on Tuesday. A slight eastward shift of the upper ridge from the Four Corners into the central Rockies is expected through Tuesday evening. This will establish a more west/southwest flow regime across the West Coast that will be favorable for downslope flow off the northern Sierra Nevada and portions of the Cascades. Additionally, a plume of mid-level moisture will continue to spread east/northeast from the western Great Basin towards the Four Corners/central Rockies that will promote dry thunderstorm potential across a broad area. ...Dry Thunderstorms... Mid-level moisture spreading eastward over the next 24 hours will impinge on a plume of steep mid-level lapse rates and dry boundary-layer conditions currently in place across the Four Corners and central Rockies. This should promote adequate buoyancy for weak convection by Tuesday afternoon. PWAT values are currently forecast to range from 0.75 inches from the northern Great Basin to around 0.5 inch across UT and western CO. Forcing for ascent driven by weak perturbations within the mean southwesterly flow regime over the northern Great Basin should decrease eastward into the Four Corners were orographic ascent will yield more isolated thunderstorms. This will likely result in a mix of wet and dry thunderstorms across the northern Great Basin with increasingly dry thunderstorms with east/southeastward extent. Portions of central OR were removed from the risk area owing to the potential for wetting rainfall over the next 24 hours. However, portions of the area may be at risk for dry lightning if rainfall amounts are more limited than currently anticipated. ...Cascades into the northern Sierra Nevada... The establishment of a southwest flow regime across the Cascades and northern Sierra Nevada will promote strengthening downslope flow along the eastern slopes. Latest forecast guidance suggests that the driest and windiest conditions will emerge across northeast CA/northwest NV where sustained winds between 15-20 mph will likely coincide with 10-15% RH minimums. Further north, cooler conditions will result in more sparse coverage of elevated conditions, but favored gaps will likely see 15-20 mph winds with RH values falling into the 15-25% range by late afternoon. ...Eastern Nevada into western Utah... Another day of dry and windy conditions is expected for Tuesday as weak troughing across the northern Great Basin drives an uptick in southwesterly flow across the region. Confidence in 10-15% RH minimums is fairly high given downslope trajectories off the southern Sierra Nevada over the preceding 24 hours, and latest HREF/REFS guidance suggests wind speeds will likely reach 15 mph for many locations, resulting in a few hours of sustained elevated conditions. ..Moore.. 07/06/2026 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC MD 1521

Storm Prediction Center
3 weeks 1 day ago
MD 1521 CONCERNING SEVERE POTENTIAL...WATCH UNLIKELY FOR PARTS OF EASTERN MT INTO WESTERN ND
Mesoscale Discussion 1521 NWS Storm Prediction Center Norman OK 0136 AM CDT Mon Jul 06 2026 Areas affected...Parts of eastern MT into western ND Concerning...Severe potential...Watch unlikely Valid 060636Z - 060830Z Probability of Watch Issuance...20 percent SUMMARY...Isolated strong to severe storms are possible through the early morning. DISCUSSION...Scattered storms are ongoing early this morning across parts of eastern MT, in association with a mid/upper-level shortwave trough and attendant cold front. While this convection is likely somewhat elevated, steep midlevel lapse rates atop relatively rich low-level moisture are resulting in MUCAPE of 1500-2500 J/kg (per recent objective mesoanalyses), with sufficient effective bulk shear for some storm organization. This thermodynamic environment will favor some hail threat, especially with any longer-lived semi-discrete cells. Low-level nocturnal stabilization may limit the severe-wind threat to some extent, but isolated strong to severe gusts may still accompany the strongest downdrafts. The isolated severe threat may spread into parts of western ND with time early this morning. ..Dean/Mosier.. 07/06/2026 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...BIS...BYZ...GGW... LAT...LON 46520370 46210448 46540510 47760545 48440518 48970431 49270288 49040226 48410245 46520370 MOST PROBABLE PEAK WIND GUST...55-70 MPH MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN Read more

SPC Day 1 Fire Weather Outlook

Storm Prediction Center
3 weeks 1 day ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0120 AM CDT Mon Jul 06 2026 Valid 061200Z - 071200Z ...Synopsis... A combination of dry thunderstorms and dry/windy conditions will pose fire weather concerns for portions of the Four Corners and northern Great Basin for today. Early-morning water-vapor imagery continues to show an upper ridge over the Four Corners region with an embedded shortwave trough evident across the northern Great Basin. This feature will promote not only thunderstorm chances across much of the Great Basin, but should also result in dry/windy conditions across parts of NV, UT, and AZ. ...Dry Thunderstorms... The 00 UTC MFR RAOB sampled a PWAT value of 0.96 inches, which is higher than previously anticipated by model guidance. Consequently, MRMS QPE and surface stations have reported pockets of wetting rainfall up to 0.25 inches associated with thunderstorms across southern OR late Sunday evening/early Monday morning. Regional soundings further east into the Four Corners region sampled a drier air mass (especially within the boundary layer), but GOES PWAT imagery suggests higher-quality moisture is advecting northward into western NV ahead of the upper-level disturbance. This will likely favor wet thunderstorms across northern CA into southern OR where most guidance shows a consistent signal for wetting rainfall, which warranted removal from the dry thunderstorm risk area. A mix of wet and dry thunderstorms across the CA/OR/NV tri-state region should transition to predominantly dry thunderstorms with southeastward extent towards the Four Corners region on the fringe of the mid-level moisture plume. In general, fuels remain very dry across the broader region and should support lightning ignitions outside of where heavier precipitation cores have occurred (mainly over northern NV/southern OR) over the past 12-24 hours. ...Eastern Nevada into Utah and Arizona... Modest surface pressure falls across the northern Great Basin through the afternoon will result in increasing southerly winds across southeast NV into adjacent portions of UT and AZ. Latest ensemble guidance continues to show reasonably strong probabilities for sustained winds near 15 mph with gusts upwards of 20-30 mph. Relative humidity values should fall to near 15% as temperatures climb into the 90s, resulting in areas of elevated fire weather conditions. While confidence in elevated conditions is greatest across southeast NV into southwest UT, more aggressive solutions suggests elevated conditions may extend into eastern UT. ..Moore.. 07/06/2026 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook

Storm Prediction Center
3 weeks 1 day ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0120 AM CDT Mon Jul 06 2026 Valid 061200Z - 071200Z ...Synopsis... A combination of dry thunderstorms and dry/windy conditions will pose fire weather concerns for portions of the Four Corners and northern Great Basin for today. Early-morning water-vapor imagery continues to show an upper ridge over the Four Corners region with an embedded shortwave trough evident across the northern Great Basin. This feature will promote not only thunderstorm chances across much of the Great Basin, but should also result in dry/windy conditions across parts of NV, UT, and AZ. ...Dry Thunderstorms... The 00 UTC MFR RAOB sampled a PWAT value of 0.96 inches, which is higher than previously anticipated by model guidance. Consequently, MRMS QPE and surface stations have reported pockets of wetting rainfall up to 0.25 inches associated with thunderstorms across southern OR late Sunday evening/early Monday morning. Regional soundings further east into the Four Corners region sampled a drier air mass (especially within the boundary layer), but GOES PWAT imagery suggests higher-quality moisture is advecting northward into western NV ahead of the upper-level disturbance. This will likely favor wet thunderstorms across northern CA into southern OR where most guidance shows a consistent signal for wetting rainfall, which warranted removal from the dry thunderstorm risk area. A mix of wet and dry thunderstorms across the CA/OR/NV tri-state region should transition to predominantly dry thunderstorms with southeastward extent towards the Four Corners region on the fringe of the mid-level moisture plume. In general, fuels remain very dry across the broader region and should support lightning ignitions outside of where heavier precipitation cores have occurred (mainly over northern NV/southern OR) over the past 12-24 hours. ...Eastern Nevada into Utah and Arizona... Modest surface pressure falls across the northern Great Basin through the afternoon will result in increasing southerly winds across southeast NV into adjacent portions of UT and AZ. Latest ensemble guidance continues to show reasonably strong probabilities for sustained winds near 15 mph with gusts upwards of 20-30 mph. Relative humidity values should fall to near 15% as temperatures climb into the 90s, resulting in areas of elevated fire weather conditions. While confidence in elevated conditions is greatest across southeast NV into southwest UT, more aggressive solutions suggests elevated conditions may extend into eastern UT. ..Moore.. 07/06/2026 ...Please see www.spc.noaa.gov/fire for graphic product... Read more
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