National Weather Service United States Department of Commerce

Strengthening Storm in the Upper Great Lakes; Thunderstorms in the Ohio Valley and Mid-Atlantic

A strengthening storm system over the Upper Great Lakes will bring moderate to heavy snow to the Upper Peninsula of Michigan through Tuesday morning. Ahead of this system, strong to severe storms may develop over the Ohio Valley, portions of the Appalachians, and the Mid Atlantic Monday. Read More >

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Last Map Update: Sun, Apr 13, 2025 at 10:20:14 pm MDT

The risk of an impactful spring storm system affecting portions of Montana later this week is increasing. Recent forecast trends suggest areas along/east of the Divide as a focus for potentially significant precipitation and snow amounts. There is a potential for strong winds in western Montana as well. April weather is often volatile in the Northern Rockies and MT and there is a high amount of uncertainty in this early outlook, so stay tuned to forecasts if you have travel/outdoor plans or agricultural interests later this week.

 

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