Image: SWC Forecast Center
December 11, 2020
❄ A second accumulating snow event will affect areas blanketed by last weeks Winter Storm...
A low pressure system is expected to eject out of the Rocky Mountains Saturday and Sunday, and increase in forward speed as it does so. Snow, some heavy at times, will spread across Southern Colorado Saturday night, and then along the Oklahoma panhandle Sunday morning. Snowfall amounts of 4 to 6 inches will be common across the counties bordering the OK/KS state line, with locally higher amounts.

Sunday afternoon, as snow tapers off in Northwest Oklahoma, widespread rain and sleet, will change over to snow in eastern parts of the state. In these areas, generally 1 to 3 inches can be expected.



🌨 Forecast Provided By: SWC Forecaster Rich Gross
  • 🌡 Winter Temperature Forecast
    Show and hide layers
    🌡 The 2020/21 SWC Winter Temperature Forecast highlights below normal temperatures in the northern and Eastern United States through late February. Above normal temperatures will exist in the west and southwest through Spring 2021 as La Nina continues to be a significant influence on the overall weather pattern.
  • 🌧 Winter Precipitation Forecast
    Show and hide layers
    🌧 SWC Forecasters analyze large-scale weather patterns such as El Nino/La Nina to pinpoint future precipitation anomalies across the United States. Other factors such as soil moisture and solar conditions are also considered when making a long-range precipitation forecast.
  • ❄ The SWC Winter Forecast has been released for the 2020-21 Season. Meteorological Winter starts on December 1, 2020 with the U.S. experiencing warmer than normal weather conditions. Our forecasters break down the details of how Winter will play out in your area.
  • ⚠️ 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.
  • 🧊 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.