Three things to know about weather for RVers and travelers Friday 29 September

  • Dangerously heavy rainfall is expected today and tonight over the greater New York City area, northern New Jersey, and portions of southern New England.
  • High elevation snows probable for the Sierras, Great Basin, Inter-mountain West, and Rockies this weekend.
  • Strong winds Saturday from California eastward to the Rockies.

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Starting Monday morning, 27 November, this site will be down for a major upgrade. will return no later than Wednesday 29 November — sooner if possible. When the site returns, WILMA, our NEW(!) integrated weather impacts product, will be available. The Paywall will also be implemented. RV Weather will continue to provide free access to essential, RV-relevant National Weather Service Warnings and Advisories, current weather, and weather safety information. While the main site is off-line, I will post a simple forecast to my email list and to RVWeather on Facebook.

From the RV Weather Summer Office in Colter Bay Wyoming:

These are the most significant weather impacts to RV travel over the next two to three days. I do not list every area of rain, showers, or breezy winds. (It would be exhausting for both of us!). Please check out the animations and graphics for a good depiction of the weather along your route.


East-central CA Mono County; central and southern Sierra Nevada Mountains above 8000 feet: Winter Weather Advisory tonight through Saturday evening. 1-3 inches snow likely with local amounts to 6 inches. Tioga and Sonora Passes impacted.

East-central and southeast NV: Wind Advisory Saturday. Gusts to 50 mph. US-6, US-50, US-93 impacted. Winds will be crosswinds on US-50.

Southern CA western Mojave Desert: Wind Advisory this evening through Saturday night. Gusts to 50 mph. I-15, US-395, CA-58 impacted.

— Interior southern CA deserts bounded by I-10 and I-8: Wind Advisory Saturday afternoon and evening. Gusts to 45 mph. I-8, I-10 impacted.


West-central and southwest UT: Wind Advisory late Saturday morning through Saturday evening. Gusts to 50 mph. Wind Advisory is south of I-80 and west of I-15.

— East-central UT; much of western CO; south-central WY: Red Flag (fire danger) Warnings continue through this evening. Wind gusts to 45 mph. I-70, I-80 potentially impacted.

Most of northern and central AZ: Wind Advisories late Saturday morning through Saturday evening. Gusts 40-50 mph. I-17, I-40 impacted.

— Southwest and south-central AZ: Red Flag (fire danger) Warnings late Saturday morning through Saturday evening. Gusts to 40 mph. I-8, I-10, I-17, I-19 impacted.

— South-central NM and adjacent far-southwest TX: Flood Watches Saturday afternoon and evening for repeated heavy rains from showers and thunderstorms. I-10, I-25 potentially impacted.

–Southeast MT; much of eastern WY: A few severe thunderstorms capable of producing hail may develop late Sunday. I-25, I-90 potentially impacted.


— Southwest ND; western SD; northwest NE: A few severe thunderstorms capable of producing hail may develop late Sunday. I-90 potentially impacted.

Much of central and western MN; southeast ND; eastern SD; northeast NE: Scattered thunderstorms may produce hail or isolated severe wind gusts today. I-29, I-35, I-90, I-94 potentially impacted.

— Portions of northeast MN: Flood Watch this evening through Saturday morning. Up to 2 additional inches of rainfall possible. I-35 potentially impacted.

— South-central WI; much of northern, central and east-central IL: Dense Fog Advisories through mid-morning. I-39, I-55, I-57, I-70, I-74, I-80, I-88, I-90 impacted.


— Central and southern IN; southwest OH: Dense Fog Advisories through mid-morning. I-64, I-65, I-69, I-70, I-71, I-74, I-75 impacted.

— ME; northern and central NH: Dense Fog Advisories through mid-morning. I-93, I-95, US-1 impacted.

Central and northern NJ; southern NY including Long Island; eastern CT: FLASH FLOOD WARNINGS (Queens and eastern Long Island), Advisories and Watches through late tonight. Widespread rainfall of 3-5 inches is likely and some locations could see 7 inches. Rainfall rates could exceed 2 inches per hour. This is a dangerous situation. Seek higher ground. Do not drive or tow through flooded roads, or allow yourself to become trapped in your vehicle or RV. I-80, I-84, I-91, I-95, I-495 on Long Island, greater NYC roads highly impacted.

Severe thunderstorm risk today and tonight.
Severe thunderstorm risk tomorrow and tomorrow night.
Total rainfall amounts for the next three days
Total snowfall amounts for the next three days

Current Severe Thunderstorm and Tornado Watches from the National Weather Service Storm Prediction Center

Two-day tropical weather outlook from the National Hurricane Center

Tornado safety information for RVers (what to do!):

Access to real-time road information:

Phone numbers and websites for road conditions in all 50 states. Courtesy of the Cheyenne WY Weather Forecast Office

Some useful links:

High-resolution radar

Your local forecast

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