Headline:
Extreme Heat Warning issued August 3 at 2:06PM MST until August 3 at 8:00PM MST by NWS Tucson AZ
Event:
Extreme Heat Warning
Urgency:
Expected
Effective:
August 3, 2026 - 2:06pm
Expires:
August 3, 2026 - 8:00pm
Description:
* WHAT...Thunderstorms will initially develop over the Mogollon Rim
and other sky islands of Southeast Arizona, then track southwest
into the valleys of Southeast Arizona and become widespread during
the late afternoon, then move across the lower deserts of Southeast
Arizona through the evening. The stronger storms will produce
organized thunderstorm outflow winds between 45-55 mph, resulting
in dense blowing dust with visibility between one-quarter and
one-half mile and possibly a haboob with near-zero visibility. For
the Extreme Heat Warning, dangerously hot conditions with
temperatures 101 to 106. Major to Extreme HeatRisk is expected.
* WHERE...Eastern Cochise County below 5000 feet, Tucson Metro Area,
Upper Gila River Valley, Upper San Pedro River Valley, and Upper
Santa Cruz River Valley/Altar Valley.
* WHEN...Until 8 PM MST this evening.
* IMPACTS...Hazardous driving conditions due to reduced visibility.
Heat related illnesses increase significantly during extreme heat
events.
Instruction:
Persons with respiratory problems should make preparations to stay
indoors until the storm passes. Be ready for a sudden drop in
visibility to near zero. If you encounter blowing dust or blowing
sand on the roadway or see it approaching, pull off the road as far
as possible and put your vehicle in park. Turn the lights all the way
off and keep foot off the brake pedal. Remember, 'Pull Aside, Stay
Alive'.
Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
Take extra precautions if you work or spend time outside. When
possible, reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when possible and
drink plenty of water.
Area Description:
Upper Santa Cruz River and Altar Valleys including Nogales; Tucson Metro Area including Tucson/Green Valley/Marana/Vail; Upper San Pedro River Valley including Sierra Vista/Benson; Eastern Cochise County Below 5000 Feet including Douglas/Willcox; Upper Gila River and Aravaipa Valleys including Clifton/Safford
Forcast Office:
NWS Tucson AZ
Sender:
w-nws.webmaster@noaa.gov