Heavy to Excessive Rainfall This Week from the Southwest into Central U.S.

Pacific tropical moisture wrapping into a storm over the southwest U.S. will continue a multi-day heavy rainfall event this week that will extend into the Midwest and southern Plains. Considerable flash flooding is possible across portions of New Mexico and west Texas today through Wednesday. Read More >

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Last Map Update: Tue, Sep 29, 2026 at 5:14:31 am MST

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National Weather Service Salt Lake City, UT

National Weather Service Grand Junction, CO

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National Weather Service Albuquerque, NM

National Weather Service NWS Tucson Arizona

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Total Rainfall Forecast

Expect areas of heavy rain and potential flooding for Arizona through late Tuesday evening. This is due to an early fall storm interacting with both remnant Monsoonal moisture and tropical moisture from both the remnants of Odalys and Hurricane Polo. The potential exists for at least 1 to 3 inches of rainfall within this time frame. This amount of rainfall could cause impactful rises in area waterways, including major waterways such as Little Colorado River.

Greatest chances for precipitation will be Today through Tuesday Evening. 0.5-1.5 inches for western AZ, 1-2 inches for eastern AZ, with 2-3 inches possible in heavier thunderstorms and due to terrain-driven effects. Area of focus will shift eastward Tuesday. Embedded thunderstorms may be strong to severe - Heavy rainfall, strong winds, and large hail possible.

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Heavy to Excessive Rainfall This Week from the Southwest into Central U.S.

NWS Forecast Office Flagstaff, AZ