SWC Snow Impact Potential for Friday, Saturday, and Sunday January 16, 2022
After a record breaking December comprised of above normal temperatures and below normal snowfall for much of the eastern United States, Winter will make a grand entrance this weekend! A multi-region Winter Storm complex will affect the Dakotas starting on Thursday night heading southward into the Missouri Valley on Friday night and Saturday. Snow will crank up in the Tennessee Valley, the southern Appalachain mountains, and the southern half of the Ohio Valley region on Sunday and Sunday night. Snow is expected to also break out across areas of the Northeast/Eastern Great Lakes on Monday with additional snow accumulation.

A strong upper level low pressure system is expected to drop south from western Canada this weekend into early next week. It will deliver several inches of new snow across several states ranging from North Dakota to Tennessee to Maine.
Let's take a look at the latest operational weather models. You will see that while there are still a number of details to work out with regard to exact track and intensity of surface features, there is increasing confidence with regard to some of the impact areas we expect will receive accumulating snow and some ice this weekend.

The first image(left) is the Global Forecast System which depicts perhaps a larger storm overall and even more snow for some areas of the Missouri Valley, Tennessee Valley, and the Appalachain mountains. The Canadian weather model in the (center) image depicts perhaps a drier storm, yet with a similar track with regard to low pressure and other surface fronts and positions. The image on the (right) depicts the European weather models determination, resulting in a similar track as the other models, but with some of the heavier snowfall being shifted toward the Appalachain/Mid-Atlantic/Northeast areas. Some of these model differences are explained, as the numerical weather model data attempts to determine whether the primary low pressure center will shift east of the southern Appalachain mountains, or others which hang onto low pressure west of the mountain range longer.

These differences and other details regarding this potent Winter Storm will largely be resolved over the next 24 to 36 hours as the storm takes shape. Stay tuned for storm track updates and more from the forecasters of SWC Forecast Center. Stay safe and stay warm!
  • ☃️ The SWC Winter Forecast has been released for the 2021-22 Season. Our forecasters break down the details of how the upcoming Winter will play out across the United States.
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  • 🧊 As Winter Weather impacts become more frequent across America, it's important to brush up on the basics. Let's review how you can prepare yourself and your family for the worst of Old Man Winter!
    📦 Pack an Emergency Supply Kit.
    📱 Charge all Communication devices.
    🚗 Winterize all family vehicles.
    📖 Get up-to-date weather reports.
    🙌 Share your travel plans with others.
    🛣 Monitor road conditions.
  • 📡 View the latest Goes-16 Visible Satellite image of the United States. This image will update every 5 minutes.
  • 🔥 As La Nina continues to control the overall pattern across the Western U.S., dry conditions are prevailing across Arizona, Utah, and New Mexico. These conditions are forecasted to continue through Winter 2020/21.