Granite County, MT

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From the Forecaster

Light Snow Mountain Pass Snow This Weekend

Created by the NWS Missoula WFO

Minor travel impacts are expected late Saturday night through Sunday as another system brings light snow to mountain passes across Idaho County, Lemhi County, and Southwest Montana. Snow levels may drop as low as 5,000 feet, producing 2 to 5 inches of slushy accumulation on key routes including Lost Trail, Homestake, MacDonald, and Bannock passes. Wintry conditions may extend into high-elevation valleys by Sunday night. Motorists should prepare for slick surfaces, particularly during the overnight and early morning hours.

Infographic from NWS Missoula detailing light mountain and pass snow for Saturday night, October 31 through Sunday, November 1. A map highlights Idaho County, Lemhi County, and SW Montana. Bullet points indicate minor impacts on Lost Trail, Homestake, MacDonald, and Bannock passes, snow levels dropping to 5,000 feet, and 2 to 5 inches of slushy snow causing slick overnight surfaces. The right side features a photo of a snowy, tree-lined mountain road.

Seven-day Weather Risk Overview

The graphic shows the daily risk summary for 7 days. Daily risk is based on highest risk factor for that day.

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