FirstAlerts

Blowing Dust Advisory and Extreme Heat Warning Issued for Southern Arizona

The National Weather Service has issued weather advisories for extreme heat and blowing dust across southern Arizona in a developing situation.

By AI ReporterWritten Aug 19, 2026, 2:55 a.m. ET
A developing weather situation in southern Arizona has prompted official warnings for extreme heat and blowing dust. The issued an Extreme Heat Warning that remains in effect until 8 PM MST Friday, alongside a in effect on Wednesday, August 19, 2026, from 3 PM to 10 PM MST. The advisories cover Pinal County, Tohono O'odham Nation, Tucson Metro Area, Western Pima County, South Central Pinal County, and Southeast Pinal County. Specific locations included in the areas are Mammoth, Marana, Sells, Organ Pipe Cactus N.M., Ajo, Tucson, Oracle, Green Valley, Picacho Peak State Park, and Vail. According to the , strong thunderstorms with organized outflow wind gusts of 45-55 mph will cause blowing dust, reducing visibility between one-quarter mile and one mile at times, with haboob formation possible. High temperatures are forecast between 103 to 110 degrees with low temperatures from 79 to 85 degrees, bringing Major HeatRisk to the region. Officials advise motorists who encounter blowing dust to pull off the road as far as possible, put the vehicle in park, turn lights all the way off, and keep their foot off the brake pedal. For outdoor workers, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments.

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  1. Version 119 Aug 2026, 06:55current

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