National Weather Service United States Department of Commerce

Active Pattern for the Center of the Nation; Increasing Rainfall Threat for the Pacific Northwest

An active pattern remains in place across the center of the country with additional threats from severe thunderstorms and heavy rainfall. These concerns will remain in place through most of the weekend. An approaching storm across the Pacific Northwest is expected to bring heavy rainfall and strong winds late this weekend. The heat risk and fire weather concerns will increase across the Southwest. Read More >

Click a location below for detailed forecast.

Last Map Update: Sat, Jun. 1, 2024 at 9:06:28 am MDT

National Weather Service Spokane, WAZoom
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National Weather Service Great Falls, MT
National Weather Service Pendleton, ORNational Weather Service Boise, IDNational Weather Service Pocatello, ID

Weather models are showing the potential for a very wet weather system to impact the region Sunday night through Monday. There is a 70 to 90 percent chance of getting 0.10” or more of rain across central Idaho and western Montana. The higher chances of picking up 1 inch or more of rain is focused across Idaho and Clearwater County, ID and varies from 40-70 percent. Recent model runs are starting to show a 20 percent probability of 2.00” of rain through portions of Idaho County. The heavy rain may cause rapid rises on area small streams, and in Idaho county may cause some small stream flooding. Main stem, large rivers across the region still have a lot of capacity available, so main stem river flooding is unlikely at this time, less than 20 percent chance. In addition, poor drainage areas may see ponding water along with rock and debris onto roadways.
A strong ridge of high pressure will begin to influence the Northern Rockies by the end of next week, bringing us the warmest temperatures of the season thus far! Keep updated with forecast changes as we near mid-week next week.

 

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