Three things to know about weather for RVers and travelers Tuesday 19 September

  • Severe thunderstorms with very large hail possible today and tonight across central and eastern Oklahoma.
  • Mountain snows for the higher elevations in the northern Rockies starting Wednesday night.
  • Possible tropical system to form off the Southeast Coast and impact coastal Carolinas and Mid-Atlantic Coast this weekend.

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Changes are coming to RV Weather! Please check out my blog post to see what the future holds…

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.


— Southwest OR above 2000 feet: Red Flag (fire danger) Warning this morning. Wind gusts to 35 mph. US-101 potentially impacted.


— Higher elevations of western MT; ID; western WY, generally above 8000 feet: Several inches of wet snow possible Wednesday night through Friday night. Most of the snow will fall at night, with rain or a rain/snow mix in the daytime. Major highways should not be impacted, but high mountain passes on secondary roads will likely see snow cover.


— Much of western and central TN; northeast MS: Dense Fog Advisories through mid-morning. I-24, I-40, I-65 potentially impacted.

— Central and eastern OK; adjacent north-central TX: Scattered severe thunderstorms possible today and tonight. Very large hail and severe wind gusts possible. Greatest hail threat is along and just west of I-35 and north of I-20. A tornado or two cannot be ruled out. I-20, I-35, I-40, I-44 potentially impacted.

— Eastern OK: Heavy rains associated with showers and thunderstorms today and tonight. 1-3 inches of rain will create a slight risk of flash flooding. I-40, I-44 potentially impacted.

South-central and southeast KS; OK except the Panhandle; north-central and northeast TX: Isolated strong to severe thunderstorms possible Wednesday afternoon and evening. Isolated tornadoes, damaging winds, and hail all possible. I-20, I-30, I-35, I-40, I-44 potentially impacted.

— Central and eastern ND; central SD: 1-2 inches of rainfall Thursday and Thursday night will create a slight risk of flash flooding. I-29, I-90, I-94 potentially impacted.

— Western and central NE; western and central KS; north-central and central OK: Isolated strong to severe thunderstorms possible Thursday and Thursday night, I-35, I-40, I-44, I-70, I-80 potentially impacted.


— Western ME; portions of northern NH: FLOOD WARNINGS, Advisories and Watches continue this morning. 1-3 inches of rain have already fallen. Localized flooding is imminent or ongoing. I-95, US-1, US-2, US-201 potentially impacted.

— Coastal Carolinas and Mid-Atlantic Coast: Heads up for weekend RV travelers: A non-tropical area of low pressure is forecast to form east of the Florida peninsula late this week. This system could acquire some subtropical characteristics this weekend while it moves generally northward. Regardless of subtropical development or its possible designation as a named storm, this low could produce gusty winds, heavy rain, and high surf conditions this weekend.

Severe thunderstorm risk today and tonight.
Wildfire smoke concentrations late this afternoon and evening Tuesday 19 September
Severe thunderstorm risk tomorrow and tomorrow night.
Total rainfall amounts for the next three days

Current Severe Thunderstorm and Tornado Watches from the National Weather Service Storm Prediction Center

Tropical weather outlook from the National Hurricane Center

Tornado safety information for RVers (what to do!):

Access to real-time road information:

Phone numbers and websites for road conditions in all 50 states. Courtesy of the Cheyenne WY Weather Forecast Office

Some useful links:

High-resolution radar

Your local forecast

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