Three things to know about weather for travelers Friday 7 July

Severe thunderstorms are expected from portions of the High Plains into the south-central Plains.
Thunderstorms and rain may produce flooding in the south-central Plains and parts of the Northeast and Mid-Atlantic.
Heat will produce dangerous conditions in the Southwest and Texas; heat advisories for parts of Florida.

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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 Moose 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:

— East-central CA including Mono County, eastern slopes of the southern Sierra Nevada; portions of southeast CA including the Owens Valley: Flood Advisories and Flood Watches continue through Saturday for snow melt. Flooding impacting rural roads and campgrounds is likely. US-395 potentially impacted.

— Southern CA Mojave Desert western slopes: Wind Advisory late this afternoon through Saturday morning. Gusts to 50 mph. CA-58 impacted.

Mountain:

— Much of eastern CO along and east of the I-25 corridor; northeast NM: Scattered strong to severe thunderstorms expected today. Damaging winds, hail and a few tornadoes all possible. Hail could be large over southeast CO. I-25, I-70, I-76 potentially impacted.

— Southeast WY; far-west NE; eastern CO; northeast NM: Slight risk of severe thunderstorms on Saturday. Damaging winds, hail and a few tornadoes all possible. I-25, I-70, I-76, I-80 potentially impacted.

— Eastern WY; eastern CO; northeast NM: Isolated severe thunderstorms possible Sunday. I-25, I-40, I-70, I-76, I-80, I-90 potentially impacted.

— Central and northern AZ; southeast and east-central UT; southwest and west-central CO; northwest NM: Red Flag (fire danger) Warnings today. Wind gusts 30-40 mph. I-17, I-40, I-70 impacted.

— South-central and portions of southeast AZ: Excessive Heat Warning continues through next Thursday (13 July). Afternoon temperatures 108 – 115 deg F. I-8, I-10, I-17, I-19 impacted.

— AZ Grand Canyon below 4000 feet: Excessive Heat Warning through Sunday. Temperatures may reach 115 deg F at Phantom Ranch.

— Far-west TX El Paso County: Excessive Heat Watch Saturday through Monday. Temperature may reach 110 deg F. I-10 potentially impacted.

Central:

— Portions of southwest and south-central KS: Flood Watches continue through Saturday morning. More rounds of thunderstorms later today and tonight may drop another 2-4 inches of rain over this region that has already seen up to 4 inches of rainfall in recent days. US-83, US-281, US-400 potentially impacted.

— Portions of central OK and east-central TX Panhandle: Severe Thunderstorm Watch this morning. Hail up to the size of tennis balls and wind gusts to 75 mph possible. I-40, I-44 potentially impacted.

— Southwest and south-central KS; much of the TX Panhandle and OK: Scattered strong to severe thunderstorms expected today. Very strong damaging winds, large hail and a few tornadoes all possible. I-27, I-35, I-40, I-44 potentially impacted.

— Southeast ND; northern MN; much of SD; NE; MO; northern AR; northeastern half of KS: Isolated severe thunderstorms today. Damaging winds possible throughout this region. Hail possible over southern NE, KS, MO, and northern AR. I-35, I-40, I-44, I-70, I-80, I-90, I-94 potentially impacted.

— Western, southwest and south-central KS; most of OK; TX Panhandle north of I-40; southern MO; most of AR; southern IL; western KY; western TN; northwest MS: Slight risk of severe thunderstorms on Saturday. Wind and hail are the primary threats, although a tornado or two is possible over western KS and the Panhandles of OK and TX. I-22, I-24, I-30, I-35, I-40, I-44, I-55, I-57, I-64, I-70, I-80 potentially impacted.

— West-central and southwest AR; central and northern MS; most of AL; southern TN: Scattered severe thunderstorms expected on Sunday. I-20, I-22, I-40, I-55, I-59, I-65, I-85 potentially impacted.

Eastern:

— Downeast ME: Dense Fog Advisory this morning. US-1 impacted.

— Northern NY; northern VT; northern NH; northern ME: Flood Watches midday today through late this evening. Localized additional rainfall may exceed 2 inches. I-87, I-89, I-91, I-93, I-95 potentially impacted.

— Much of northern and central NY; northern VT; northern NH; northern ME: Isolated severe thunderstorms with a few strong gusts possible. I-84, I-86, I-87, I-88, I-89, I-90, I-91, I-93, NY Thruway potentially impacted.

— Central and eastern MD; DE; DC; VA; NC; SC; much of GA: Scattered severe thunderstorms expected Sunday. I-16, I-20, I-26, I-40, I-64, I-66, I-70, I-74, I-77, I-81, I-85, I-95 potentially impacted.

Click here for the extended outlook (updates every Thursday and Sunday evening).

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