At 351 PM MST, a severe thunderstorm was located 6 miles east of
Whetstone, moving west at 15 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...
Whetstone, Huachuca City, Kartchner Caverns State Park, Fort
Huachuca, Fairbank and Charleston.
This includes the following highways...
Route 90 between mile markers 300 and 316. Route 80 between mile
markers 307 and 312. Route 82 between mile markers 49 and 66.
SVRTWC
The National Weather Service in Tucson has issued a
* Severe Thunderstorm Warning for...
East Central Graham County in southeastern Arizona...
Central Greenlee County in southeastern Arizona...
* Until 430 PM MST.
* At 326 PM MST, a severe thunderstorm was located near Clifton,
moving southwest at 20 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...
Safford, Clifton, Thatcher, Solomon, Morenci, San Jose, Safford
Regional Airport, Duncan, Central, York, Guthrie and Three Way.
This includes the following highways...
Route 78 between mile markers 155 and 173. Route 191 between mile
markers 118 and 178. Route 75 between mile markers 379 and 398. Route
70 between mile markers 335 and 381.
At 318 PM MST, Doppler radar was tracking a strong thunderstorm 7
miles north of Sawmill, or 31 miles northeast of Globe, moving
southwest at 15 mph.
HAZARD...Wind gusts up to 50 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Hilltop and Sawmill.
This includes US Highway 60 between mile markers 271 and 297.
FFWTWC
The National Weather Service in Tucson has issued a
* Flash Flood Warning for...
Central Santa Cruz County in southeastern Arizona...
* Until 500 PM MST.
* At 301 PM MST, Doppler radar indicated thunderstorms producing
between 0.75 and 1.50 inches of heavy rain north of Patagonia Lake.
Flash flooding is ongoing or expected to begin shortly, especially
along drainages that feed into Sonoita Creek and Josephine Canyon
Creek.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Rio Rico, Patagonia and Patagonia Lake State Park.
This includes Route 82 between mile markers 11 and 19.
This includes the following streams and drainages...
Santa Cruz River, Sonoita Creek and Josephine Canyon.
At 255 PM MST, a severe thunderstorm was located 9 miles north of Rio
Rico, moving northwest at 15 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...
Tubac, Rio Rico, Patagonia, Patagonia Lake State Park, Tumacacori
and Amado.
This includes the following highways...
Interstate 19 between mile markers 14 and 29. Route 82 between mile
markers 12 and 26.
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
484 IN EFFECT UNTIL 10 PM MST THIS EVENING FOR THE FOLLOWING
AREAS
IN ARIZONA THIS WATCH INCLUDES 1 COUNTY
IN SOUTHEAST ARIZONA
PINAL
THIS INCLUDES THE CITIES OF APACHE JUNCTION, CACTUS FOREST,
CASA GRANDE, ELOY, AND FLORENCE.
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
484 IN EFFECT UNTIL 10 PM MST THIS EVENING FOR THE FOLLOWING
AREAS
IN ARIZONA THIS WATCH INCLUDES 5 COUNTIES
IN SOUTH CENTRAL ARIZONA
PIMA
IN SOUTHEAST ARIZONA
COCHISE GRAHAM GREENLEE
SANTA CRUZ
THIS INCLUDES THE CITIES OF CLIFTON, DOUGLAS, DUNCAN, MORENCI,
NOGALES, SAFFORD, SIERRA VISTA, THATCHER, AND TUCSON.
* WHAT...Visibility between one-quarter and one mile in blowing dust
expected.
* WHERE...Gila Bend, Northwest Pinal County, Sonoran Desert Natl
Monument, Southeast Valley/Queen Creek, and West Pinal County.
* WHEN...From 6 PM to 10 PM MST this evening.
* IMPACTS...Hazardous driving conditions due to reduced visibility.
* WHAT...Dangerously hot conditions, with temperatures up to 107
expected.
* WHERE...Marble and Glen Canyons.
* WHEN...Until 8 PM MST /9 PM MDT/ Sunday.
* IMPACTS...Most individuals will be at risk for heat-related
illnesses without effective cooling or adequate hydration,
especially with prolonged outdoor exposure.
* WHAT...Dangerously hot conditions below 4000 feet, with daytime
temperatures ranging from 100 degrees at Havasupai Gardens, to 114
degrees at Phantom Ranch.
* WHERE...Lower elevations of the Grand Canyon.
* WHEN...Until 8 PM MST Sunday.
* IMPACTS...Most individuals will be at risk for heat-related
illnesses without effective cooling or adequate hydration,
especially with prolonged outdoor exposure.
* WHAT...Visibility between one-quarter and one mile in blowing dust
from thunderstorms late this afternoon and evening. Wind gusts in
excess of 50 mph possible. Localized dense blowing dust may bring
visibility below one-quarter mile at times, especially in dust
prone areas such as along Interstate 10 between Tucson and Phoenix.
* WHERE...South Central Pinal County, Southeast Pinal County, Tohono
O'odham Nation, Tucson Metro Area, Upper Santa Cruz River
Valley/Altar Valley, and Western Pima County.
* WHEN...From 4 PM this afternoon to 11 PM MST this evening.
* IMPACTS...Hazardous driving conditions due to reduced visibility.
* WHAT...Visibility between one-quarter and one mile in blowing dust
from thunderstorms this afternoon and evening. Wind gusts in excess
of 50 mph possible. Localized dense blowing dust may bring
visibility below one-quarter mile at times, especially in dust
prone areas such as along Interstate 10 through the San Simon
Valley near the Arizona and New Mexico border.
* WHERE...Eastern Cochise County below 5000 feet, Upper Gila River
Valley, and Upper San Pedro River Valley.
* WHEN...From 3 PM this afternoon to 9 PM MST this evening.
* IMPACTS...Hazardous driving conditions due to reduced visibility.
* WHAT...Visibility between one-quarter and one mile in blowing dust
expected.
* WHERE...Gila Bend, Northwest Pinal County, Sonoran Desert Natl
Monument, Southeast Valley/Queen Creek, and West Pinal County.
* WHEN...From 6 PM to 10 PM MST Saturday.
* IMPACTS...Hazardous driving conditions due to reduced visibility.
AQAPSR
The Arizona Department of Environmental Quality (ADEQ) has issued a
PM-10 High Pollution Advisory for Pinal County through Saturday.
An episode of strong and gusty winds is forecast to generate
widespread blowing dust that may result in local PM-10 concentrations
that pose a health risk. Adverse health effects increase as air
quality deteriorates.
Coarse particulate matter - also known as PM-10 - is an air
contaminant that can aggravate heart and lung disease conditions,
especially in older adults, children, and those with asthma. A
decrease in physical activity is recommended.
Consolidate your travel, stabilize loose soils, slow down or avoid
travel on dirt roads, reduce or eliminate fireplace use, and avoid
using gas-powered lawn equipment.
For details on this High Pollution Advisory, visit the ADEQ internet
site at www.azdeq.gov/forecast/WestPinal or call 602-771-2300.
* WHAT...Dangerously hot conditions, with temperatures of 105 to 110
degrees expected.
* WHERE...Marble and Glen Canyons, including Page and Lake Powell.
* WHEN...From 11 AM MST /noon MDT/ Saturday to 8 PM MST /9 PM MDT/
Sunday.
* IMPACTS...Most individuals will be at risk for heat-related
illnesses without effective cooling or adequate hydration,
especially with prolonged outdoor exposure.
* WHAT...Dangerously hot conditions below 4000 feet, with daytime
temperatures ranging from 100 degrees at Havasupai Gardens, to 113
degrees at Phantom Ranch.
* WHERE...Lower elevations of the Grand Canyon.
* WHEN...Until 8 PM MST Sunday.
* IMPACTS...Most individuals will be at risk for heat-related
illnesses without effective cooling or adequate hydration,
especially with prolonged outdoor exposure.
* WHAT...Dangerously hot conditions with temperatures of 107 to 112
degrees.
* WHERE...South Central Pinal County, Southeast Pinal County, Tohono
O'odham Nation, Tucson Metro Area, Upper Gila River Valley, and
Western Pima County.
* WHEN...Until 8 PM MST this evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* WHAT...Dangerously hot conditions. Afternoon temperatures 111 to
116 expected. Major Heat Risk. Overexposure can cause heat cramps
and heat exhaustion to develop and, without intervention, can lead
to heat stroke.
* WHERE...In Arizona, Parker Valley. In California, Chuckwalla
Valley, Imperial County Southwest, Imperial County West, Imperial
Valley, and Palo Verde Valley.
* WHEN...Until 8 PM MST /8 PM PDT/ Friday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events. Overexposure can cause heat cramps and heat
exhaustion to develop and, without intervention, can lead to heat
stroke.
* WHAT...Dangerously hot conditions. Afternoon temperatures 110 to
115. Major Heat Risk. Overexposure can cause heat cramps and heat
exhaustion to develop and, without intervention, can lead to heat
stroke.
* WHERE...Buckeye/Avondale, Central Phoenix, Deer Valley, East
Valley, North Phoenix/Glendale, Northwest Valley,
Scottsdale/Paradise Valley, South Mountain/Ahwatukee, and Southeast
Valley/Queen Creek.
* WHEN...Until 8 PM MST Friday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events. Overexposure can cause heat cramps and heat
exhaustion to develop and, without intervention, can lead to heat
stroke.
* ADDITIONAL DETAILS...In Maricopa County, call 2-1-1 to find a free
cooling center, transportation, water, and more.
http://www.maricopa.gov/heat
* WHAT...Dangerously hot conditions. Afternoon temperatures 109 to
116. Major Heat Risk. Overexposure can cause heat cramps and heat
exhaustion to develop and, without intervention, can lead to heat
stroke.
* WHERE...In Arizona, Central La Paz, Gila River Valley, Kofa, and
Yuma. In California, Chuckwalla Mountains, Imperial County
Southeast, and Chiriaco Summit.
* WHEN...Until 8 PM MST /8 PM PDT/ Thursday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events. Overexposure can cause heat cramps and heat
exhaustion to develop and, without intervention, can lead to heat
stroke.