Travel & RV Weather Forecast Thursday 1 September (and Labor Day Weekend outlook)


  • Excessive heat intensifies across southern and central CA and remains in place through the Labor Day weekend.
  • Localized flash flood possible today across parts of southwest Texas.
  • Tropical Depression Five formed over the central Atlantic last night – it will likely become Tropical Storm Danielle later today; no threat to the U.S. or Labor Day weekend travel plans.

Labor Day weekend outlook

  • Hot and dry for much of the West, Rockies, and Northern Plains — elevated fire danger.
  • Some monsoon rains reappear in Arizona over the weekend
  • Cooler and wetter than normal across Texas and the Southeast
  • Heaviest rains this weekend along the Texas and Louisiana coasts.
  • Dry, cool start to the weekend over the Midwest and Northeast, but rain and warmer temperatures move in by Monday, especially to the Midwest.
  • The Atlantic will have one, possibly two, named tropical storms over the weekend — but no threat to the U.S. or holiday travel plans.

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Pacific:

— Southern and much of interior Central CA; southern NV: Excessive Heat Warnings and Watches continuing through the Labor Day weekend and into early next week. High temperatures will range from 100-110 deg F in the San Joaquin Valley to 105-115 deg F in the Mojave and southern Deserts and 115-123 deg F in Death Valley. Excessive Heat Warnings come into effect throughout the Sacramento Valley starting Saturday. I-5, I-8, I-10, I-15, I-40, CA-58, CA-99 among the highways impacted.

Mountain:

— Portions of south-central AZ: Excessive Heat Warning Sunday and Monday. High temperatures 106-110 deg F. I-10, I-17 impacted.

Central:

— Portions of southwest TX: Flash Flood Watches continue through this evening for excessive rainfall. Locally 1-2 inches of rainfall are possible. Flooding threat greatest in the Big Bend region, including Big Bend National Park. I-10, I-20 potentially impacted.

— Northern WI; southeast MN; northwest IA; southeast NE; north-central KS: Isolated strong to severe thunderstorms possible Friday afternoon and evening. Strong wind gusts and hail are the primary threats. I-29, I-35, I-43, I-70, I-80, I-90, I-94 potentially impacted.

Eastern:

— MI Upper Peninsula: Isolated strong to severe thunderstorms possible Friday afternoon and evening. Strong wind gusts and hail are the primary threats.


Severe Weather and Tropical Watches and Warnings

— See https://rvweather.com/warnings-watches-and-advisories/#NHC_Hurricane_Advisory for the latest Tropical system WARNINGS and information.

— See https://rvweather.com/warnings-watches-and-advisories/#SPC_Tornado_Watch for the latest Tornado and Severe Thunderstorm WATCHES

— See https://rvweather.com/warnings-watches-and-advisories/#NWS_Tornado_Warning for the latest Tornado, Severe Thunderstorm, and Flash Flood WARNINGS.



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