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 >

Click a location below for detailed forecast.

Last Map Update: Fri, Feb 21, 2025 at 10:48:20 pm MST

Watches, Warnings & Advisories

National Weather Service Great Falls, MT

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National Weather Service Western and Central Wyoming

High Wind Warning

Winter Weather Advisory

Wind Advisory

Flood Watch

High Wind Watch

Hydrologic Outlook

Dangerous Crosswinds

Snowmelt

Roof Snow and Ice

Windy Conditions Return

A period of strong southwest to west winds is expected to develop along the western foothills in south central Montana tonight, and continue into Monday. Strong crosswinds will make travel hazardous for high profile vehicles and those pulling trailers. Please check forecasts and road reports before traveling.

Warmer temperatures will likely lead to significant snowmelt runoff over frozen ground. The threat of localized flooding from this process will increase this weekend into next week. If you have interests along waterways and in flood prone areas, be prepared for the potential of rising waters.

As the warmer temperatures return, be aware of falling roof snow and ice. If necessary, take precautions to protect yourself, pets, and property from any potential damage.