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Winter Storm Watch

Status

New Event Active alert

Start Time

Sun 04/27/2025 08:00 PM EDT

End Time

Mon 04/28/2025 02:00 PM EDT

Significance

Watch

Impacts

Moderate impact

Locations Affected

Pony, MT ∙ Blaze Mountain, MT ∙ West Yellowstone, MT ∙ Upper Red Rock Lake, MT ∙ Grayling, MT ∙ Hilgard Peak, MT ∙ West Yellowstone, MT ∙ Red Rock Lakes National Wildlife Refuge, MT ∙ Sage Peak, MT ∙ Koch Peak, MT

Headline

...APRIL MOUNTAIN SNOW EVENT TO IMPACT SOUTHWESTERN AND CENTRAL MONTANA...
.A slow moving weather system from the Pacific will move bring widespread rain to a large swath of Montana over the weekend, with the best chances for precipitation expected Sunday afternoon through Monday morning. While some of this precipitation will fall as rain even at the higher elevations, widespread flooding is not a major concern at this time. Snow levels will drop quickly Sunday evening and overnight, allowing snow to at least reach the passes by sunrise Monday. This snow will be heavy and wet, which may pose a danger to trees and power lines, especially as trees begin to come out of dormancy.

Full Alert Message

URGENT - WINTER WEATHER MESSAGE National Weather Service Great Falls MT 209 PM MDT Fri Apr 25 2025 ...APRIL MOUNTAIN SNOW EVENT TO IMPACT SOUTHWESTERN AND CENTRAL MONTANA... .A slow moving weather system from the Pacific will move bring widespread rain to a large swath of Montana over the weekend, with the best chances for precipitation expected Sunday afternoon through Monday morning. While some of this precipitation will fall as rain even at the higher elevations, widespread flooding is not a major concern at this time. Snow levels will drop quickly Sunday evening and overnight, allowing snow to at least reach the passes by sunrise Monday. This snow will be heavy and wet, which may pose a danger to trees and power lines, especially as trees begin to come out of dormancy. ...WINTER STORM WATCH IN EFFECT FROM SUNDAY EVENING THROUGH MONDAY MORNING... * WHAT...Heavy wet snow possible. Total snow accumulations up to 8 inches possible. * WHERE...Gallatin and Madison County Mountains and Centennial Mountains. * WHEN...From Sunday evening through Monday morning. * IMPACTS...The weight of heavy wet snow on tree limbs may down power lines and could cause sporadic power outages. Travel could be very difficult. Use caution when shoveling, especially if you have a history of heart issues. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. Remember, a Winter Storm Watch means that there is at least a 50% chance of impactful winter weather conditions during the watch period.

Technical Header

MTZ330-261115- /O.NEW.KTFX.WS.A.0013.250428T0000Z-250428T1800Z/ Gallatin and Madison County Mountains and Centennial Mountains- Including the following locations: Big Sky, Targhee Pass, Raynolds Pass, and West Yellowstone 209 PM MDT Fri Apr 25 2025