NWS Tucson Arizona

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Last Map Update: Wed, Sep 2, 2026 at 11:18:26 am MST

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Flood Advisory

Storm Chances Today

Tropical Moisture and Increasing Storm Chances

Storm chances and coverage increase compared to yesterday with isolated to scattered thunderstorms expected from Tucson south. Storms will be capable of strong winds and heavy rainfall.

Tropical Storm Marie is currently centered well to the south of Baja and will be moving northwestward over the next few days. As it moves northward moisture will be on the increase starting Thursday into the weekend. This will likely lead to an increase in thunderstorm activity and a risk for heavy rainfall and flash flooding.