National Weather Service United States Department of Commerce

Atmospheric River in the Pacific Northwest and Northern Rockies this Weekend

A Pacific storm and atmospheric river will impact the Pacific Northwest states and northern Rockies this weekend, bringing locally heavy low elevations rain and heavy high elevation snow in the mountains. By Sunday over the Interior Northwest, rain combined with snowmelt will increase the risk of flood hazards. Flood Watches are in effect. Read More >

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Last Map Update: Fri, Feb 21, 2025 at 10:00:12 pm MST

Flood Watches Issued for North-Central Idaho and Western Montana Flood watches are in effect for north-central Idaho and western Montana due to an increased risk of lowland and urban flooding. This threat stems from a combination of rainfall, snowmelt, and potential ice jams affecting area streams. Preventative Measures: Protect Your Roof & Gutters: Clear gutters and downspouts to ensure proper drainage and reduce the risk of ice dams and leaks. Safely remove accumulated snow from roofs to prevent structural strain and water damage. Prevent Water Accumulation & Flooding: Move snow away from home foundations to improve drainage and minimize water seepage. Clear window wells to prevent basement flooding. Stay Safe on the Roads: Avoid driving through standing or flooded water, as conditions can change rapidly. Remain alert for potential road hazards caused by flooding.
Rain is on track to develop this weekend, increasing the risk of icy gravel & dirt roads Saturday through Sunday in northwest and west-central Montana. Icy patches may also form where subsurface temps stay below freezing, creating changeable conditions. Drive with caution: Slow down, watch for black ice & check road updates.

 

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