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 12:48:12 pm MST

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National Weather Service Salt Lake City, UT

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National Weather Service Albuquerque, NM

National Weather Service NWS Tucson Arizona

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Eastward Shift Wednesday

Expect areas of heavy rain and potential flooding for Arizona through late this evening. This is due to an early fall storm interacting with both remnant Monsoonal moisture and tropical moisture. The potential exists for additional 0.5 to 2 inches of rain. Additional rainfall could cause impactful rises in area waterways, including major waterways such as Little Colorado River.

As the mid/upper-level trough and close low shifts eastward, this will shift the greater focus for rainfall over eastern Arizona and into New Mexico. There is an increased risk for embedded thunderstorms today due to the mid/upper-level trough and close low. Some 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