Travel & RV Weather Forecast a.m. Tuesday 21 December 2021 (Happy Winter Solstice!)

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  • A series of Pacific storms will bring periods of heavy low elevation rain and mountain snow to much of the western U.S. through the Christmas weekend and beyond.
  • Starting Wednesday, pick your weather windows carefully when crossing the higher passes on I-5, I-80 and I-90.
  • Tornado Watch this morning over southwest Florida.

For details, check out the latest weather animations.

Here’s the long-range travel & RV weather outlook (next update, tomorrow)

— WA Olympic and Cascade mountains; OR Cascade mountains: Winter Storm Watches this evening through Wednesday. Snow levels generally above 3500 feet. Expect 8-14 inches snow in the Cascades and 12-18 inches snow in the Olympics. I-5, I-90 impacted.

— Northern CA: Winter Storm Warnings and Advisories Wednesday evening through Thursday morning above 4500 feet. 7-15 inches of snow expected with wind gusts 30-40 mph. I-5, US-89 impacted.

— CA Sierra Nevada Range: Winter Storm Warnings Wednesday evening through Sunday. Snow levels start at 4500-5000 feet. Total accumulations of 3-4 feet likely with some places seeing as much as 9 feet of snow. I-80, US-50 highly impacted.

— Northwest MT Rocky Mountain Front: Winter Weather Advisory through this afternoon for snow and blowing snow. Up to one inch of snow, accompanied by wind gusts to 60 mph.

— South-central MT Livingston area and Beartooth Foothills. Wind Advisory through midday Wednesday. Gusts to 65 mph. I-90, US-191 impacted.

— Western WY: Winter Storm Watch late Wednesday evening through Friday. 6-10 inches snow likely for the valleys, significantly higher amounts in the mountains. US-89 impacted.

— Southeast and east-central WY: High Wind Warnings through midday Tuesday (I-25) and midday Wednesday (I-80). Gusts 60-70 mph. I-25, I-80 impacted.

— East-central, north-central and northeast MN; northern WI; western MI Upper Peninsula: Winter Weather Advisories through this afternoon. 2-4 inches total accumulation. I-35 impacted. Advisory is to the north of I-94.

— Eastern MI Upper Peninsula: Winter Storm Warning this afternoon and evening. 3-8 inches of snow likely. I-75 impacted.

— Northeast TX, southeast OK: Dense Fog Advisories through midmorning. I-20, I-30, I-35, I-40, I-45 impacted.

— Southwest FL: Tornado Watch through 10 a.m. this morning. A couple of tornadoes and wind gusts to 70 mph possible.

— FL Peninsula: Expect some strong or possibly severe thunderstorms today. Some localized flooding possible on the Space Coast. I-4, I-75, I-95 impacted.

— Northern ME: Winter Storm Watch for Wednesday: Accumulations greater than 7 inches possible. I-95 impacted.

— Coastal southwest ME, coastal NH, northeast and central MA: Winter Weather Advisories late tonight through midday Wednesday. A couple of inches snow likely before changing over to freezing rain, sleet and rain. I-89, I-90, I-93, I-95 impacted.

Click here for the latest short-term weather forecast!

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