Image: ECMWF/Pivotal Weather
December 5, 2020
🌦 Rainfall amounts expected to pick up in the south and far west over the next 5 days...
The precipitation forecast across America shows an uptick in measurable rainfall and some snow this week as a couple of weather systems drop into the Pacific Northwest and spread east through the weekend. Rainfall amounts will generally be on the low side as the pattern is somewhat progressive and fast-moving.

  • ⚠️ 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.
  • 🌧 Winter Precipitation Forecast
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    🌧 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.
  • 🌧 We are tracking annual precipitation across America. From January through October, dry conditions have prevailed in the west with wetter-than-normal rainfall in the east and portions of the upper Midwest.
  • 🧊 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.