Travel & RV Weather Forecast a.m. Wednesday 22 December 2021

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  • A series of Pacific storms will bring periods of heavy low elevation rain, mountain snow and gusty winds to the Western U.S. into early next week.
  • A storm strengthening off the East Coast today will produce areas of ice and heavy snow across New England.
  • Expect strong to high winds Thursday over much of the Rockies to the West Coast.

For details, check out the latest weather animations.

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

— WA Olympic and Cascade mountains; OR Cascade mountains: Winter Storm Warnings through Thursday afternoon above 3000 feet. Snow accumulations generally 5-15 inches. I-90 impacted.

— Southwest OR, adjacent northwest CA: Winter Storm Watches and Advisories Friday morning through Monday morning above 1500 feet. Snow accumulations may range from a few inches at 1500 feet to a few feet at and above 3500 feet. I-5 will likely be highly impacted.

— Northern CA: Winter Storm Warnings and Advisories through Sunday. Heaviest snows will be Friday afternoon through Sunday afternoon. Expect 5-10 inches of snow at lower elevations and 3 or more feet of snow at pass levels. Winds could gust to 50 mph. I-5 will be highly impacted.

— CA Sierra Nevada Range: Winter Storm Warnings and Advisories through Sunday. Heaviest snows will be Thursday 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. Winds could gust 50-70 mph. I-80, US-50 highly impacted and will likely become impassible.

— South-central CA: Dense Fog Advisory through late this morning for central and southern San Joaquin Valley. I-5, CA-99 impacted.

— Northwest MT: Winter Weather Advisory through late this morning. 2-4 inches of snow, possibly mixed with some freezing rain.

— South-central ID, north of I-84: Winter Storm Watches and Advisories this evening through Thursday evening. 3-6 inches snow in the valleys below 6000 feet and 8-16 inches in the higher passes. Winds could gust to 35 mph.

— East-central and northeast NV above 6000-6500 feet: Winter Weather Advisories Thursday morning through Friday morning. Accumulations. 2-4 inches below 7000 feet and 4-10 inches at higher elevations. I-80 should be OK.

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

— Western WY, adjacent MT and ID: Winter Storm Watches this evening through Friday evening. 6-10 inches snow likely for the valleys, significantly higher amounts in the mountains. US-89 impacted.

— Northeast UT: Winter Storm Warnings Thursday morning through Saturday morning. 1-2 feet of snow possible, higher amounts at highest elevations. I-15, I-80 impacted.

— North-central WY: High Wind Watch Thursday. Gusts. To 60 mph. I-90 impacted.

— Western WY Wind River Mountains. High Wind Watch Thursday. Gusts to 65 mph.

— Southeast and east-central WY: High Wind Warnings and Watches through Thursday night. Gusts 60-65 mph. I-25, I-80 impacted.

— Much of western CO, adjacent southeast UT: Winter Storm Warnings, Watches and Advisories Thursday through Saturday above 9000 feet. Up to 2 feet of snow possible with wind gusts to 50 mph. I-70 impacted.

— North-central and central NM, east of Albuquerque: High Wind Watches Thursday evening though late Friday night. Gusts to 65 mph possible. I-25, I-40 impacted.

— Central OK, east of Oklahoma City: Dense Fog Advisory through mid-morning. I -40, I-44 impacted.

— Northern MI: Winter Weather Advisory through midday today. 1-3 inches additional snow accumulation. I-75 impacted.

— Northwest CT and adjacent NY; most of MA except southeast portion; southeast VT; central and southern NH; coastal ME: Winter Weather Advisories through late this afternoon and evening for freezing rain and freezing drizzle. I-84, I-89, I-90 / Mass Pike, I-89, I-91, I-93, I-95 impacted.

— Northern ME: Winter Storm Warning through tonight: Snow accumulation 6-10 inches, mixed with sleet and freezing rain. I-95 impacted.

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