Heavy to Excessive Rainfall This Week from the Southwest into Central U.S.; Severe Weather in the Southern Plains

Pacific tropical moisture wrapping into a storm will continue a multi-day heavy rainfall event this week that will impact multiple areas in the Plains and Intermountain West. Isolated severe thunderstorm wind gusts and possibly a tornado or two could occur tonight from southern and eastern New Mexico into west Texas. Read More >

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Last Map Update: Tue, Sep 29, 2026 at 7:28:11 pm 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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Eastward Shift Wednesday

Expect areas of heavy rain and thunderstorms with potential flooding for Arizona through tonight. 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, with locally higher amounts. 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.