* WHAT...Dangerously hot conditions with temperatures of 107 to 111
degrees.
* WHERE...Southeast Pinal County, Tucson Metro Area, Upper Gila River
Valley, and Upper San Pedro River Valley (mainly north of Benson).
* WHEN...From late Tuesday morning through Wednesday evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* WHAT...Dangerously hot conditions with temperatures up to 110
degrees possible.
* WHERE...San Carlos area.
* WHEN...From Tuesday morning through Wednesday evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* WHAT...Dangerously hot conditions expected below 4000 feet, with
daytime temperatures ranging from 101 degrees at Havasupai Gardens,
to 112 degrees at Phantom Ranch.
* WHERE...Lower elevations of the Grand Canyon.
* WHEN...From 10 AM Monday to 7 PM MST Tuesday.
* IMPACTS...Most individuals will be at risk for heat-related
illnesses without effective cooling or adequate hydration,
especially with prolonged outdoor exposure.
* WHAT...Critical fire weather conditions. Southwest winds 15 to 25
mph with gusts up to 35 mph and relative humidity 5 to 10 percent.
* WHERE...Chuska Mountains and Defiance Plateau, Little Colorado
River Valley in Navajo County, and Little Colorado River Valley in
Apache County.
* WHEN...Until 6 PM MST /7 PM MDT/ this evening.
* IMPACTS...Rapid spread and growth of any new or existing fires.
Fires will have the potential to exhibit extreme fire behavior.
Elevated potential for new fire starts.
* WHAT...Dangerously hot conditions possible below 4000 feet, with
daytime temperatures ranging from 97 degrees at Havasupai Gardens,
to 111 degrees at Phantom Ranch.
* WHERE...Lower elevations of the Grand Canyon.
* WHEN...From Monday morning through Tuesday evening.
* IMPACTS...Most individuals will be at risk for heat-related
illnesses without effective cooling or adequate hydration,
especially with prolonged outdoor exposure.
* AFFECTED AREA...Fire weather zone 101.Fire weather zones 460,
461, 462, 463, 464, 465, and 466.
* TIMING...Late Friday morning through Friday evening.
* WIND...South winds 20 to 25 mph with gusts to 35 mph.
* HUMIDITY...5 to 15 percent.
* IMPACTS...Any fires that develop will likely spread rapidly.
Outdoor burning is not recommended.
The National Weather Service in Flagstaff AZ has issued a Red Flag
Warning due to strong winds and low relative humidity.
* WHAT...Southwest winds 15 to 25 mph with gusts up to 35 mph,
Relative Humidity between 5 to 10 percent.
* WHERE...Chuska Mountains and Defiance Plateau, Little Colorado
River Valley in Navajo County, and Little Colorado River Valley in
Apache County.
* WHEN...From 11 AM MST /noon MDT/ to 6 PM MST /7 PM MDT/ Saturday.
* IMPACTS...Rapid spread and growth of any new or existing fires.
Fires will have the potential to exhibit extreme fire behavior.
Elevated potential for new fire starts.
* AFFECTED AREA...In Arizona... Fire weather zone 101. In
Nevada... Fire weather zones 460, 461, 462, 463, 464, 465, and
466.
* TIMING...Late Friday morning through Friday evening.
* WIND...South winds 20 to 25 mph with gusts to 35 mph.
* HUMIDITY...5 to 15 percent.
* IMPACTS...Any fires that develop will likely spread rapidly.
Outdoor burning is not recommended.
* AFFECTED AREA...In Arizona... Fire weather zone 102.
* TIMING...Late Friday morning into Friday evening.
* WIND...South to southwest winds 20 to 25 mph with gusts to 35
mph.
* HUMIDITY...5 to 15 percent.
* IMPACTS...Any fires that develop will likely spread rapidly.
Outdoor burning is not recommended.
* AFFECTED AREA...In Arizona... Fire weather zone 101. In
Nevada... Fire weather zones 460, 461, 462, 463, 464, 465, and
466.
* TIMING...Late Friday morning through Friday evening.
* WIND...South winds 20 to 25 mph with gusts to 35 mph.
* HUMIDITY...5 to 15 percent.
* IMPACTS...Any fires that develop will likely spread rapidly.
Outdoor burning is not recommended.
* AFFECTED AREA...In Arizona... Fire weather zone 102.
* TIMING...Late Friday morning into Friday evening.
* WIND...South to southwest winds 20 to 25 mph with gusts to 35
mph.
* HUMIDITY...5 to 15 percent.
* IMPACTS...Any fires that develop will likely spread rapidly.
Outdoor burning is not recommended.
The National Weather Service in Las Vegas has issued a Red Flag
Warning, which is in effect from 11 AM PDT /11 AM MST/ to 11 PM
PDT /11 PM MST/ Friday. This Red Flag Warning has replaced the
Fire Weather Watch.
* AFFECTED AREA...In AZZ101...Fire weather zone 101.In Nevada...
Fire weather zones 460, 461, 462, 463, 464, 465, and 466.
* TIMING...Late Friday morning through Friday evening.
* WIND...South winds 20 to 25 mph with gusts to 35 mph.
* HUMIDITY...5 to 15 percent.
* IMPACTS...any fires that develop will likely spread rapidly.
Outdoor burning is not recommended.
The National Weather Service in Las Vegas has issued a Red Flag
Warning, which is in effect from 11 AM to 8 PM MST Friday. This
Red Flag Warning has replaced the Fire Weather Watch.
* AFFECTED AREA...In AZZ102...Fire weather zone 102.
* TIMING...Late Friday morning into Friday evening.
* WIND...South to southwest winds 20 to 25 mph with gusts to 35
mph.
* HUMIDITY...5 to 15 percent.
* IMPACTS...any fires that develop will likely spread rapidly.
Outdoor burning is not recommended.
* WHAT...Dangerously hot conditions below 4000 feet, with daytime
temperatures ranging from 103 degrees at Havasupai Gardens, to 112
degrees at Phantom Ranch.
* WHERE...Lower elevations of the Grand Canyon.
* WHEN...Until 8 PM MST Thursday.
* IMPACTS...Most individuals will be at risk for heat-related
illnesses without effective cooling or adequate hydration,
especially with prolonged outdoor exposure.
At 720 PM MST, Doppler radar indicated that heavy rain has ended over
the warned area, including Hillside and Yava. Between 1 and 2 inches
of rain fell earlier this afternoon. Flooding impacts will continue,
but no additional rainfall is expected. Flash flooding is ongoing or
expected to begin shortly.
HAZARD...Life threatening flash flooding. Thunderstorms producing
flash flooding.
SOURCE...Radar indicated.
IMPACT...Life threatening flash flooding of creeks and streams,
normally dry washes, urban areas, highways, streets and
underpasses.
Some locations that will experience flash flooding include...
Hillside, Yava and Date.
This includes State Route 96 between mile markers 13 and 21.
This includes the following creeks, washes and rivers...
Santa Maria River, Tank Wash, Alkali Wash, Eastwood Creek, South
Fork Santa Maria River, Bland Creek, Waterman Creek, Kirkland
Creek, Black Canyon Wash, North Fork Date Creek, Quail Spring Wash,
Cottonwood Creek and Sycamore Creek.
At 704 PM MST, radar indicated strong thunderstorms were located
along a line extending from 9 miles west of Tres Alamos Wilderness to
near Gladden to 15 miles south of Salome. Movement was east at 5 mph.
Winds in excess of 40 mph will be possible.
Locations impacted include...
Tonopah, Aguila, Salome, Wenden, Palo Verde Nuclear Generation
Station, Gladden, and Wintersburg.
This includes the following highways...
AZ Interstate 10 between mile markers 52 and 104.
US Highway 60 between mile markers 58 and 108.
At 625 PM MST, radar indicated clusters of strong thunderstorms were
located along a line extending from near Coolidge to 7 miles
southeast of Maricopa to 11 miles south of Estrella Mountain Ranch.
Movement was south at 15 mph.
Conditions are becoming more favorable for the development of
additional thunderstorms.
Winds in excess of 40 mph will be possible.
Strong, gusty winds will be capable of producing areas of blowing
dust with reduced visibilities.
Locations impacted include...
Chandler, Gilbert, Goodyear, Casa Grande, Florence, Coolidge, Sun
Lakes, Maricopa, Queen Creek, Estrella, Arizona City, La Palma, Big
Horn, San Tan Valley, Seville, Bapchule, Estrella Sailport, Olberg,
Arizola, and San Tan Mountain Park.
This includes the following highways...
AZ Interstate 10 between mile markers 166 and 204.
AZ Interstate 8 between mile markers 129 and 178.
AZ Route 87 between mile markers 124 and 162.
If outdoors, consider seeking shelter inside a building.
SVRFGZ
The National Weather Service in Flagstaff has issued a
* Severe Thunderstorm Warning for...
Yavapai County in west central Arizona...
* Until 330 PM MST.
* At 304 PM MST, a severe thunderstorm was located 2 miles northwest
of Black Canyon City, or 34 miles southeast of Prescott, moving
southeast at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
* Locations impacted include...
Black Canyon City, Horse Thief Basin, Agua Fria National Monument,
Rock Springs, Castle Creek Wilderness and Humbug.
This includes Interstate 17 between mile markers 242 and 250.
This includes the following recreation areas and campgrounds...
Black Canyon Campground.
* WHAT...Dangerously hot conditions expected below 4000 feet, with
daytime temperatures ranging from 102 degrees at Havasupai Gardens,
to 110 degrees at Phantom Ranch.
* WHERE...Lower elevations of the Grand Canyon.
* WHEN...From 10 AM Tuesday to 8 PM MST Wednesday.
* IMPACTS...Most individuals will be at risk for heat-related
illnesses without effective cooling or adequate hydration,
especially with prolonged outdoor exposure.
At 125 AM MST, Doppler radar was tracking a strong thunderstorm near
San Tan Mountain Park, or 10 miles southeast of Sun Lakes, moving
east at 20 mph.
HAZARD...Wind gusts up to 50 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Chandler, Sun Lakes, Queen Creek, Blackwater, Chandler Heights, San
Tan Mountain Park, San Tan Valley, Seville, Sacaton, and Santan.
This includes the following highways...
AZ Interstate 10 between mile markers 174 and 185.
AZ Route 87 between mile markers 140 and 160.