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Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

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Snow Makes a Quick Return to the Bighorn Mountains and Natrona County

Another push of cold air will enter Wyoming this evening, spreading snowfall across portions of northern Wyoming. Snowfall will continue across the area through Thursday morning, with moderate snowfall anticipated.  The best accumulations are expected to be over the higher peaks of the Bighorn Mountains, and across much of Natrona county, including Casper and Casper Mountain.

What/When: Snow will begin this evening, and continue through Thursday morning 

Amounts / Intensity: The Bighorn Mountains are favored to receive 4 to 8 inches of snowfall through Thursday morning. The lower elevations of Natrona county may expect 2 to 5 inches of snowfall, with higher accumulations on the south side of the city. Casper Mountain is expected to receive 5 to 9 inches of snowfall through Thursday morning.  

Here is our most recent graphic created about the upcoming weather situation:

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Here are the latest watches, warnings, and advisories, and forecast snow through 12pm Thursday (click for a larger view):

    

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Want to track the storm? Here are the local and regional radar loops:

Northeast Wisconsin Radar  

 

 

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Here are some additional links to help monitor the winter weather: