Travel & RV Weather Forecast a.m. Saturday 4 December 2021

  • Low pressure brings snow and high winds from Washington State eastward to the western Great Lakes today and Sunday.
  • Extensive fog through late this morning over the Gulf Coast States.
  • On Sunday evening, isolated strong to severe thunderstorms are possible over east Texas, the mid-South, and the lower Ohio River Valley.

For more information, check out the latest weather animations.

Here’s the long-range travel & RV weather outlook (last updated Wednesday 1 December)

— WA Cascades: Winter Weather Advisories through late this afternoon above 2000 feet. Snow accumulations up to 12 inches. I-90 impacted.

— South-central WA, north-central OR: Wind Advisory this afternoon and evening. Gusts to 55 mph. I-84 impacted.

— Interior central CA: Dense Fog Advisory through late this morning for much of the central and southern Sacramento and San Joaquin Valleys, and the Delta. I-5, I-80, CA-99 impacted.

— Southern CA from Los Angeles to San Diego: Dense Fog Advisories through late this morning. I-5, I-8, I-10, I-15 impacted.

— Northeast WA; northern ID; MT Rocky Mountains; northern MT; northern, central and eastern ND; northern MN, northwest WI: Winter Storm Warnings, Watches and Advisories spreading eastward today and Sunday. Snow accumulations generally 3-6 inches over WA, ID and MT, increasing to 6-10 inches over northeast ND and northwest MN. Winds over much of this region will gust 30-40 mph. I-15, I-29, I-35, I-90, I-94 will all be impacted.

— Southwest MT and southeast ID: High Wind Warnings and Watches through Sunday morning. Gusts to 60 mph. I-15, I-84, I-90 impacted.

— Southeast ID: Dense Fog Advisory through mid-morning. I-15 impacted.

— Much of northwest, central and eastern WY: High Wind Warnings and Watches today and Sunday. Gusts 55-70 mph. I-25, I-80 impacted.

— North-central CO along the Rocky Mountain Front Range: High Wind Watch late tonight through Sunday morning. Gusts to 80 mph. I-25 is just east of the warning area; I-70 west of Denver will be highly impacted.

— Southeast and southern ND; western and central SD: High Wind Watches Sunday. Gusts to 60 mph. I-90, I-94 impacted.

— Southeast OK, west-central and central AR: Dense Fog Advisories through mid-morning. I-40, I-44 impacted.

— Eastern TX, eastern OK, MO, southern AR, western TN, western KY, southern IL, southwest IN: Chance of isolated strong or severe thunderstorms Sunday evening and Sunday night. Major highways potentially impacted include I-10, I-20, I-24, I-30, I-40, I-55, I-64

— Coastal TX, southern LA, southern MN, most of AL, southern GA, central and northern FL including the Panhandle: Dense Fog Advisories through late this morning. Major highways impacted include I-4, I-10, I-12, I-20, I-30, I-35, I-40, I-45, I-49, I-55, I-59, I-65, I-75.

— Portions of northeast IL, northern IN, western OH: Dense Fog Advisories through mid-morning. Impacted highways include I-55, I-65, I-69, I-70, I-75, I-80.

— Extreme northwest PA, western NY along the shores of Lakes Erie and Ontario: High Wind Watches Sunday evening through Monday evening. Gusts to 60 mph. I-79, I-81, I-90 / NY Thruway potentially impacted.

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