Winter Weather Advisory

Locations Affected

Lower Red Rock Lake, MT ∙ Big Sky, MT ∙ Ramshorn Peak, MT ∙ Wise River, MT ∙ Cliff Lake, MT ∙ Hebgen Lake Estates, MT ∙ Wisdom, MT ∙ Pony, MT ∙ Blaze Mountain, MT ∙ West Yellowstone, MT

Full Alert Message

URGENT - WINTER WEATHER MESSAGE National Weather Service Great Falls MT 239 AM MDT Tue May 13 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING... ...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 9 AM MDT WEDNESDAY... * WHAT...For the first Winter Weather Advisory, snow. Additional snow accumulations up to 3 inches. For the second Winter Weather Advisory, snow expected. Total snow accumulations 4 to 8 inches, with isolated higher amounts. * WHERE...The Mountains of Southwestern Montana south of Interstate 90. * WHEN...For the first Winter Weather Advisory, until 9 AM MDT this morning. For the second Winter Weather Advisory, from 8 PM this evening to 9 AM MDT Wednesday. * IMPACTS...Higher mountain passes will likely become snow covered and slippery. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling.

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