- Record high temperatures are possible this week across most of the Southern U.S.
- Monsoonal showers and thunderstorms may continue to produce flash flooding across parts of the Southwest and southern Rockies.
- Isolated severe thunderstorms are possible across the upper Ohio Valley into the central Appalachians and the Mid-Atlantic this afternoon and evening.
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Pacific:
— No significant impacts to RV travel today or Thursday.
Mountain:
— Portions of north-central and southwest NM: Flood Watch through this evening for excessive monsoon rainfall. I-25 potentially impacted.
Central:
— South-central NE; north-central KS: Scattered severe thunderstorms capable of producing damaging wind, large hail and tornadoes are possible Thursday. I-35, I-70, I-80 potentially impacted.
Eastern:
— Southeast OH; NY Southern Tier; much of PA; northern and eastern WV; most of MD; DC; northern VA: Slight risk of isolated severe thunderstorms with wind damage and hail this afternoon and evening. I-64, I-66, I-68, I-70, I-76, I-77, I-79, I-80, I-81, I-84, I-86, I-88, I-99, PA Turnpike.
— Portions of western NY; central PA; central and western MD; eastern WV and northern VA: Flood Watch this afternoon and evening for excessive rainfall. I-66, I-70, I-76, I-80, I-81, I-99, PA Turnpike potentially impacted.
Severe Weather and Tropical Watches and Warnings
— 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.
— See https://rvweather.com/warnings-watches-and-advisories/#NHC_Hurricane_Advisory for the latest Tropical system WARNINGS and information.
Heat Index Wednesday afternoon 22 June 
24 hour rainfall amounts Wednesday afternoon – Thursday afternoon 22-23 June
The South Loop of Yellowstone National Park will open at 8 a.m. Wednesday 22 June, but access will depend on your vehicle’s license plate. Please see Yellowstone’s flood recovery website for important information.
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Some useful links:
All the Latest RV Weather forecasts
Latest severe weather watches and warnings
Current near-term weather graphics
(For serious weather geeks!) National Weather Service Mesoscale Outlooks
General National Weather Service info
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