National Weather Service United States Department of Commerce
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Last Map Update: Tue, Oct 20, 2026 at 4:10:18 pm MST

The Storm Prediction Center (SPC) has placed portions of the area in a Slight to Enhanced risk for severe weather Wednesday. The primary threats will be large hail and damaging winds, but an isolated tornado or two can't be ruled out.
Due to anticipated excessive rainfall a Flood Watch has been issued starting Wednesday morning in the AZ High Terrain and will expand to portions of the lower deserts, to include to Phoenix metro, by Wednesday evening. The lower deserts will be under the effect of the Flood Watch through Thursday afternoon, while the higher terrain areas will go through until Thursday evening.
The Weather Prediction Center (WPC) has placed areas from Phoenix and points north and east in a Slight Risk for excessive rainfall leading to flash flooding for both Wednesday and Thursday.
After temperatures peak today, an approaching weather system will send daily highs on a cooling trend through the remainder of the workweek. Readings by Friday will be around 5-10 degrees below normal for this time of year.

 

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