Three things to know about weather for travelers Monday 14 August

Flash flooding continues this morning across portions of southern Missouri.
Severe thunderstorms and flash flooding are possible across portions of the Ohio Valley and eastward to the Mid-Atlantic States today.
Dangerous heat continues across parts of the South and Northwest US, extending into California.

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Starting Monday morning, 27 November, this site will be down for a major upgrade. RVWeather.com 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.

Pacific:

— WA, OR; northwest CA; CA Sacramento and San Joaquin Valleys: Excessive Heat Warnings, Watches and Advisories through Thursday. High temperatures 96-110 deg F. I-5, I-82, I-84, I-90, US-97, US-395 impacted.

— Southern WA Cascades; northern and central OR Cascades: Red Flag (fire danger) Warnings today Hot, dry, unstable conditions will allow for rapid fire growth. I-84 potentially impacted.

— Southern CA Imperial Valley and Yuma AZ: Excessive Heat Watches Tuesday through Thursday. High temperatures 110-115 deg F. I-8 impacted.

Mountain:

— Northern, central and southwest ID; northwest MT: Heat Advisories Tuesday through Thursday. High temperatures 94 – 105 deg F.

— AZ greater Phoenix area: Excessive Heat Watch Tuesday through Thursday. High temperatures 108-114 deg F. I-10, I-17 impacted.

— North-central NM Sangre de Cristo and Jemez Mountains: Flood Watch this afternoon and evening. This region is just west and north of I-25..

— Central NM including the greater Albuquerque region: Wind Advisory continues through mid-morning. Gusts to 50 mph. I-25, I-40 impacted.

Central:

— Southeast WI; northeast IL: Flood Watches today and this evening. Rainfall amounts may reach 2-4 inches. I-39, I-43, I-55, I-57, I-80, I-88, I-90, I-94 potentially impacted.

— Northeast OK; southern MO; southern IL; western KY: FLASH FLOOD WARNINGS, FLOOD WARNINGS, Flood Advisories and Watches continue through this afternoon. 1-3 inches of rain have already fallen and rainfall rates of over 1 inch per hour may continue through this morning. I-24, I-44, I-55, I-57 potentially impacted.

— Southeast SD; central and eastern NE; north-central KS: Strong winds continue through early this afternoon. Gusts 30-35 mph. I-29, I-80 impacted.

— Central and eastern MN; northwest WI: Strong to severe thunderstorms expected Wednesday evening. I-35, I-90, I-94 potentially impacted.

— Much of eastern TX; southeast AR; LA; MS; AL; FL Panhandle: A combination of Excessive Heat Warnings, Watches and Advisories today. Heat index values 115-120 deg F. I-10, I-12, I-20, I-30, I-35, I-45, I-49, I-55, I-59, I-65, I-75, I-85 impacted.

Eastern:

— Southeast OH Gallia, Jackson and Lawrence Counties: FLASH FLOOD WARNING through mid-morning. 2-3 inches of rain have fallen and another inch of rain is possible this morning. Flash flooding is imminent or occurring. US-35, OH-93 potentially impacted.

— Central and eastern KY and TN; southern OH; WV; southern PA and NJ; DC; MD; much of VA; northeast NC: Strong to locally severe thunderstorms expected today into this evening. All hazards possible. Greatest risk of a tornado will be over southeast PA, central and eastern MD, DE, and southern NJ. I-40, I-64, I-65, I-66, I-70, I-71, I-75, I-76, I-77, I-79, I-81, I-83, I-85, I-99, PA and NJ Turnpikes potentially impacted.

— CT; RI; southeast NY: Isolated severe thunderstorms may produce a brief tornado Tuesday afternoon and evening. I-84, I-87, I-91, I-95, NY Thruway potentially impacted.

— Southern DELMARVA Peninsula; southeast VA; northeast NC: Strong to severe thunderstorms forecast Tuesday afternoon and evening. I-64, I-85, I-95, US-13 potentially impacted.

— Tidewater VA; eastern and central NC; SC; GA; FL: A combination of Excessive Heat Warnings, Watches, and Advisories today. Heat index values generally 110-117 deg F. I-4, I-10, I-16, I-20, I-26, I-40, I-74, I-77, I-75, I-85, I-95 impacted.

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