Travel & RV Weather Forecast Sunday 4 September


  • Excessive heat continues through Wednesday across much of California.
  • Flash flooding possible tonight night and Monday over parts of Kentucky and Tennessee. Heavy rains spread into Pennsylvania, New York and southern New England on Labor Day.
  • Hurricane Danielle and Tropical Storm Earl pose no threat to the U.S.

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Pacific:

— Most of CA except the immediate coast and mountains; southern NV: Excessive Heat Warnings and Watches continue through Wednesday. High temperatures will range from 105-115 deg F in many locations. I-5, I-8, I-10, I-15, I-40, I-80, CA-58, CA-99 among the highways impacted.

— Southeast CA and far-south NV, mostly bounded between I-15 and I-40: A marginal risk of severe thunderstorms this afternoon and evening. Damaging wind gusts possible. I-15, I-40 potentially impacted.

Mountain:

Northwest AZ and south-central UT, Grand Canyon below 4000 feet and Glen Canyon below 5000 feet: Excessive Heat Warnings through Wednesday. Temperatures may reach 105 deg F in Glen Canyon and up to 115 deg F in Phantom Ranch, Grand Canyon.

— West-central AZ: A marginal risk of severe thunderstorms this afternoon and evening. Damaging wind gusts possible. I-40 potentially impacted.

— Portions of south-central AZ: Excessive Heat Warning through Wednesday. High temperatures 105-110 deg F. I-10, I-17 impacted.

— Northwest WY: Strong winds this afternoon with gusts 30-40 mph. Winds highest over exposed high elevations.

Central:

— South-central MO: Dense Fog Advisory this morning. I-44 impacted.

Eastern:

Southeast IN; southwest OH; central and eastern KY; central and eastern TN: Flash Flood Watch through Monday evening for excessive rainfall. Rainfall rates could exceed 2 inches / hour. If you are camping near any small streams, creeks or low-lying areas, pay close attention to the forecast, any flood warnings, and directions from your local emergency management officials. Major highways potentially impacted include I-24, I-40, I-64, I-65, I-71, I-75.

Heavy rains spread into central and eastern PA, southern NY and southern New England late tonight and continuing through Labor Day. Up to 1-2 inches of rain possible in some locations, creating a possibility for localized flash flooding. If you are camping near any small streams, creeks or low-lying areas, pay close attention to the forecast, any flood warnings, and directions from your local emergency management officials.


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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