Three things to know about weather for travelers Tuesday 21 November

Storm system moves across the East through Wednesday, bringing the chance of severe thunderstorms for the Southeast, strong winds from Georgia to Pennsylvania, and a wintry mix for the interior Northeast.
Strong offshore Santa Ana winds continue over southern California.
Thanksgiving Day snowstorm for the northern Rockies.

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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 Winter Office in State College PA:

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:

— West-central OR: Dense Fog Advisories this morning, including the Willamette Valley. I-5 impacted.

— Southern CA Santa Barbara, Ventura County, San Gabriel Mountains, including the I-5 corridor, San Bernardino, Santa Ana, Riverside, San Diego Mountains, the Inland Empire and the San Diego deserts: High Wind Warnings and Advisories continue today. Wind gusts 55-65 mph. I-5, I-10, I-15, US-101, CA-14, CA-78 impacted.

Mountain:

— Northwest MT eastern Glacier NP and adjacent foothills: High Wind Warning late tonight through early Wednesday morning. Gusts 60-70 mph. I-15, US-2 impacted.

— Eastern ID; southwest and west-central MT: Winter Weather Advisories Wednesday evening through Thursday night. 2-5 inches snow and wind gusts to 35 mph. I-15, I-84, I-86, I-90 impacted.

— South-central MT; much of WY north of I-80: Winter Storm Watches late Wednesday night through Friday morning. 2-6 inches accumulations will be widespread. Wind gusts 30-40 mph, especially over the higher elevations. I-25, I-90, US-14, US-20, US-26, US-89 impacted.

— Southeast WY: High Wind Watch tonight through Wednesday afternoon. Gusts to 60 mph. I-25 potentially impacted.

— Southeast AZ; much of southern NM; far-southwest TX west of the I-10/I-20 split: Strong winds today. Gusts generally 30-40 mph. I-10, I-19, I-25 impacted.

Central:

— Eastern SD; central and eastern NE; most of KS; central and western OK; TX Panhandle. Strong winds through mid-afternoon. Strongest winds this morning. Gusts 30-40 mph. I-27, I-29, I-35, I-40, I-70, I-80, I-90, I-94 impacted.

— Parts of central and southeast TX: Strong winds today. Gusts 30-40 mph. Strongest winds this morning. I-10, I-35, I-37, I-69 impacted.

— Southern and central AL; western FL Panhandle: A few tornadoes and isolated damaging gusts are possible today. I-10, I-65, I-85 potentially impacted.

Eastern:

— Portions of west-central MI: Winter Weather Advisory this morning. Freezing rain may produce up to 1/10th of an inch of ice. US-131 impacted.

— Northern NY; VT and adjacent northwest MA; northern and central NH; southwest ME: Winter Weather Advisories this afternoon through Wednesday. Snow accumulations will range from 1-2 inches in the western portion, to 3-7 inches over NH and ME. Sleet and freezing rain will mix in over NY, VT, and NH. I-81, I-87, I-91, I-93 impacted.

— Northwest PA and far-western NY: High Wind Warning today and early tonight. Gusts to 60 mph. I-79, I-86, I-90, NY Thruway impacted.

— Portions of central and south-central PA; far-western MD; northeast WV and west-central VA: Winter Weather Advisories through early this afternoon. Some sleet and freezing rain. Minor accumulations. I-68, I-70, I-76, I-80, I-81, US-219, PA Turnpike impacted

— South-central PA; central and southern WV; southwest VA; western NC; northwest GA: Wind Advisories through this evening. Gusts 45-55 mph. I-20, I-26, I-40, I-64, I-68, I-70, I-75, I-76, I-77, I-81, US-219, PA Turnpike impacted.

— Eastern TN mountains along the NC border: High Wind and Red Flag (fire danger) this afternoon through this afternoon. Gusts to 85 mph. I-26, I-40 impacted.

— Eastern NC: Isolated severe thunderstorms are possible Wednesday morning, potentially producing locally damaging gusts and a brief tornado. US-17, US-64, NC-12 potentially impacted.

— Much of GA, SC, central and eastern NC; southeast VA: Strong to possibly severe thunderstorms may produce isolated damaging gusts along with a marginal tornado threat today. I-16, I-20, I-26, I-40, I-64, I-75, I-77, I-85, I-95 potentially impacted.

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