Weather World
Dennison Picnic Ground Weather Advisory
WEATHER ALERT
Issue Date: 859 PM MST Sun Aug 2 2026
BLOWING DUST ADVISORY IN EFFECT FROM 4 PM TO 10 PM MST MONDAY
EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST MONDAY
WHAT
Thunderstorms will initially develop over the Mogollon Rim and other sky islands of Southeast Arizona during the early afternoon, 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 107 to 112. Major to Extreme HeatRisk is expected. WHERE
South Central Pinal County, Southeast Pinal County, Tohono O`odham Nation, and Western Pima County. WHEN
For the Extreme Heat Warning, until 8 PM MST Monday. For the Blowing Dust Advisory, from 4 PM to 10 PM MST Monday. IMPACTS
Hazardous driving conditions due to reduced visibility. Heat related illnesses increase significantly during extreme heat events. ADDITIONAL DETAILS
Warm overnight low temperatures of 84 to 90 degrees in the deserts will provide little to no relief from heat overnight. Warmest overnight low temperatures expected in the Western Deserts.
PRECAUTIONARY/PREPAREDNESS ACTIONS
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. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. 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. &&
BLOWING DUST ADVISORY IN EFFECT FROM 4 PM TO 10 PM MST MONDAY
EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST MONDAY
WHAT
Thunderstorms will initially develop over the Mogollon Rim and other sky islands of Southeast Arizona during the early afternoon, 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 107 to 112. Major to Extreme HeatRisk is expected. WHERE
South Central Pinal County, Southeast Pinal County, Tohono O`odham Nation, and Western Pima County. WHEN
For the Extreme Heat Warning, until 8 PM MST Monday. For the Blowing Dust Advisory, from 4 PM to 10 PM MST Monday. IMPACTS
Hazardous driving conditions due to reduced visibility. Heat related illnesses increase significantly during extreme heat events. ADDITIONAL DETAILS
Warm overnight low temperatures of 84 to 90 degrees in the deserts will provide little to no relief from heat overnight. Warmest overnight low temperatures expected in the Western Deserts.
PRECAUTIONARY/PREPAREDNESS ACTIONS
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. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. 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. &&
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