Tropical Moisture Will Bring Heavy to Excessive Rainfall with Possible Flooding This Week

Tropical moisture will surge over the southwest into the central U.S. this week with several days of heavy to excessive rainfall which may bring limited to considerable flooding. Isolated severe thunderstorm gusts and a couple of tornadoes will be possible from southeast New Mexico into west Texas. Read More >

Click a location below for detailed forecast.

Last Map Update: Tue, Sep 29, 2026 at 2:08:11 am MST

Watches, Warnings & Advisories

National Weather Service Salt Lake City, UT

National Weather Service Grand Junction, CO

Zoom Out

National Weather Service Albuquerque, NM

National Weather Service NWS Tucson Arizona

Flash Flood Warning

Flood Warning

Flood Advisory

Flood Watch

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.

Text Product Selector (Selected product opens in current window)

Tropical Moisture Will Bring Heavy to Excessive Rainfall with Possible Flooding This Week

NWS Forecast Office Flagstaff, AZ