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❄Winter Weather Center❄SWC Forecast CenterWelcome to SWC Forecast Center

Image: GEFS/Pivotal
January 12, 2021
❄ Global Model Ensemble Means paint a cold Central, East with a moderate, warm West with rumors of storms...
Here is a look at the mid-level pattern this time next week, January 18, 2021, from the GEFS. The key features are seen around Greenland, Hudson Bay, and western Canada. Also, pay attention to areas east of Hawaii. If you notice the orange, red, and brown colors around Geeenland and western Canada, you should see the blue and purple colors along Hudson Bay. That is the "in"famous polar vortex that we track during most winters. When we have that scenario, look for cold weather in the central and eastern United States. So what about the connection east of Hawaii? If you see blue in that locale, there is good support for an active subtropical jet. This leads to frequent storm threats. When all these features are in place during this time of year, winter should be quite prevalent in the central and eastern United States.

Image: CMCE/Pivotal
January 12, 2021
Here is a look at the Canadian ensemble, which is quite similar in makeup to that of the GEFS. We notice ridging (red) along Greenland and western Canada, with troughing (blue) along Hudson Bay. To the south, cold air is spilling into the central and eastern USA.

Image: ECMWF/Pivotal
January 12, 2021
This is the European Ensemble Mean. As its two predecessors have shown, this ensemble matches up well to our line of thinking. Ridging and troughing are in the right areas, and could lead to colder and stormier weather in the days to come. If more pronounced troughing can set up east of our 50th state(Hawaii), storm impacts will be even greater. Winter impacts will start to grow by the end of this week and continue through the rest of January.
Forecast Provided By: Meteorologist Joshua Ketchen
Forecast Provided By: Meteorologist Joshua Ketchen
- 🌡 Winter Snowfall Forecast
Show and hide layers 🌡 The 2020/21 SWC Winter Snowfall Forecast illuminates a wintry picture over a large portion of America. A La Nina favored large-scale pattern with upper-level ridging in the west and troughing in the east was considered in developing this forecast. Other influences, from the Arctic to the North Atlantic, could play a major role on how storm systems progress across the country.
- Latest SWC Forecasts
- ❄️ Winter’s Last Stand for the Ohio Valley with Heavy Snow possible Friday night
- ⚠️❄️ Winter Storm Update Plus Expected Snow & Ice Totals across the Ohio Valley Region
- ❄🧊☃️ Powerhouse Winter Storm to slam the Ohio Valley with Ice and Heavy Snow starting on Wednesday night through Friday
- ❄🧊 Potentially Dangerous Winter Storm to bring significant winter impacts to the Ohio Valley, Midwest, and Southern Plains this week!
- ❄ See how much snow will fall across the eastern third of the Ohio Valley Sunday night/Monday morning
- ❄ A Massive Winter Storm is expected to produce widespread accumulating SNOW across multiple regions this weekend
- ❄ Winter to visit the Ohio Valley and Lower Great Lakes this week with Accumulating Snow and Cold
- 🥶 Major Cold Outbreak Likely next week with “First Flakes” possible in the Midwest, Ohio Valley, and Northeast!
Latest SWC Features✅ Catch up on the most recent weather forecasts from SWC Forecasters!
✅ Track severe weather hazards day or night with our interactive maps!
✅ Visit our social media outlets for more fresh weather content!
✅ Sign-Up for a storm chasing vacation with our veteran Storm Chasers and friendly Tour Guides!
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Do you have a fun weather fact or personal weather story that you would like to share with SWC Forecasters? We would love to hear about it! Send us your story at forecasters@swcforecastcenter.com.
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Do you have a fun weather fact or personal weather story that you would like to share with SWC Forecasters? We would love to hear about it! Send us your story at forecasters@swcforecastcenter.com.
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Do you have a fun weather fact or personal weather story that you would like to share with SWC Forecasters? We would love to hear about it! Send us your story at forecasters@swcforecastcenter.com.
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Do you have a fun weather fact or personal weather story that you would like to share with SWC Forecasters? We would love to hear about it! Send us your story at forecasters@swcforecastcenter.com.
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Do you have a fun weather fact or personal weather story that you would like to share with SWC Forecasters? We would love to hear about it! Send us your story at forecasters@swcforecastcenter.com.
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Do you have a fun weather fact or personal weather story that you would like to share with SWC Forecasters? We would love to hear about it! Send us your story at forecasters@swcforecastcenter.com.
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- ⚠️ U.S Advisory Layers
SWC Weather Advisory Layers ⚠️ Click on real-time watch, warning, and advisory polygons for critical weather information. Allow the SWC location feature to plot your location on the map. Expand the map and visit all SWC Weather Layers.
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🌐 NOAA/NWS Surface Weather Maps display forecasted cold/warm front postions, precipitation areas, and high/low pressure centers. Forecasts span over 48 to 60 hours.
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🌐 NOAA/NWS Surface Weather Maps display forecasted cold/warm front postions, precipitation areas, and high/low pressure centers. Forecasts span over 48 to 60 hours.
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🌐 NOAA/NWS Surface Weather Maps display forecasted cold/warm front postions, precipitation areas, and high/low pressure centers. Forecasts span over 48 to 60 hours.
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🌐 NOAA/NWS Surface Weather Maps display forecasted cold/warm front postions, precipitation areas, and high/low pressure centers. Forecasts span over 48 to 60 hours.
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🌐 NOAA/NWS Surface Weather Maps display forecasted cold/warm front postions, precipitation areas, and high/low pressure centers. Forecasts span over 48 to 60 hours.
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🌐 NOAA/NWS Surface Weather Maps display forecasted cold/warm front postions, precipitation areas, and high/low pressure centers. Forecasts span over 48 to 60 hours.
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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.
- Latest SWC Forecasts
- ❄️ Winter’s Last Stand for the Ohio Valley with Heavy Snow possible Friday night
- ⚠️❄️ Winter Storm Update Plus Expected Snow & Ice Totals across the Ohio Valley Region
- ❄🧊☃️ Powerhouse Winter Storm to slam the Ohio Valley with Ice and Heavy Snow starting on Wednesday night through Friday
- ❄🧊 Potentially Dangerous Winter Storm to bring significant winter impacts to the Ohio Valley, Midwest, and Southern Plains this week!
- ❄ See how much snow will fall across the eastern third of the Ohio Valley Sunday night/Monday morning
- ❄ A Massive Winter Storm is expected to produce widespread accumulating SNOW across multiple regions this weekend
- ❄ Winter to visit the Ohio Valley and Lower Great Lakes this week with Accumulating Snow and Cold
- 🥶 Major Cold Outbreak Likely next week with “First Flakes” possible in the Midwest, Ohio Valley, and Northeast!
Latest SWC Features✅ Catch up on the most recent weather forecasts from SWC Forecasters!
✅ Track severe weather hazards day or night with our interactive maps!
✅ Visit our social media outlets for more fresh weather content!
✅ Join SWC Veteran Storm Chasers in Spring 2021 as we track down the most intense Supercells and Tornadoes found in the world!
- 📡 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.
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