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 5:30:14 pm MST

Watches, Warnings & Advisories

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High Wind Warning

Winter Weather Advisory

Wind Advisory

Flood Watch

High Wind Watch

Hydrologic Outlook

Snowmelt and Ice Jam Concerns

Winds Continue to Increase Today

Saturday Wind Gust Probabilities

Strong Winds Sunday

Much warmer temperatures developing this weekend will lead to low elevation snowmelt and the potential for areas of standing water due to still frozen ground or blocked storm drains. In addition, changes to river ice conditions will need to be monitored for the development of ice jams. #MTwx

Westerly winds will continue to increase today over the Rocky Mountain Front and the plains of North Central and Central Montana. The main concerns will be difficult driving due to cross-winds and localized blowing and drifting of snow. #MTwx

Strong winds will become more widespread Saturday along the Rocky Mountain Front and adjacent foothills and plains as well as further east along the MT-200/US-87 highway corridor. #MTwx

Widespread strong winds will impact the state this weekend, with the most impactful winds happening on Sunday and Monday. Travel will be difficult for high-profile vehicles and trailers due to strong crosswinds, and localized areas of blowing snow can reduce visibility. #MTwx