RV Weather Enterprises

• Unsettled, wet weather dominates the West for most of this time period.
• Persistent high elevation (> 6000 ft) snows for the West Coast, Nevada, Idaho, and northern and central Rockies.
• The low pressure system gradually moves eastward, increasing chances for showers, thunderstorms through the central U.S. and the South.

Extended outlooks are more general in nature and higher level than the daily short term forecasts. Beyond a week, there is often significant uncertainty in the location and intensity of specific weather events. I will note where there is less, or greater, confidence than normal in these extended outlooks.

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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.

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Click here for animations of the coming week’s weather, updated daily.

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From the RV Weather Summer Office in Moose Wyoming

Big Picture for the end of this week, the weekend, and early next week:

• Unsettled, wet weather dominates the West for most of this time period.
• Persistent high elevation (> 6000 ft) snows for the West Coast, Nevada, Idaho, and northern and central Rockies.
• The low pressure system gradually moves eastward, increasing chances for showers, thunderstorms through the central U.S. and the South.
• Increasingly active severe weather pattern develops over the Central and Southern Plains into the Midwest and mid- and lower-Mississippi Valley.

Temperature and Precipitation Outlook:

• Cool in the West and East; warmer than normal in the Central U.S. through Monday.
• Warmth spreads to the Mid-Atlantic and Northeast by Tuesday.
• Wetter than normal over California, the Great Basin, Pacific Northwest and Northern Rockies.
• Wetter than normal over the Northern Plains, Upper Midwest and Deep South.
• Drier than normal over the Southwest and Texas, the Midwest, Mid-Atlantic and Northeast.

Highlights by day (4 – 9 May):

1. Thursday:
   • Snow in the California Sierra Nevada and central Nevada.
   • Some severe thunderstorms over central Texas and Central Oklahoma.
   • Strong winds for Utah and Arizona.
   • Heavy rain and thunderstorms eastern Kansas and southwest Missouri.
   • Generally unsettled in the West.
2. Friday:
   • Snow for northern Nevada, central Idaho and the Washington Cascades.
   • Unsettled in the West.
   • Heavy rain for southern and eastern Missouri, southern Illinois and west Tennessee.
   • Showers and thunderstorms for east Texas, lower Mississippi Valley and the Mid-South.
3. Saturday:
   • Snow in the central and northern Rockies, California Sierra Nevada, and Washington Cascades.
   • Rain showers extend from the West Coast to the Western Plains.
   • Showers and thunderstorms in the Deep South and Southeast.
4. Sunday:
   • Some snow for the Oregon Cascades, Idaho, western Wyoming and northern Utah.
   • Generally unsettled with more rain in the West.
   • Developing low pressure over Iowa brings rain to the Upper Midwest and scattered showers and thunderstorms to the South.
5. Monday:
   • Snow for the Washington Cascades, central Idaho and western Wyoming.
   • More rain for the Pacific Northwest and Northern Rockies.
   • Rain for the Upper Midwest.
   • Unsettled weather over much of the East, mostly west of I-81.
6. Tuesday:
   • Heavy rain and thunderstorms over the central Gulf Coast. Perhaps some embedded severe thunderstorms.
   • Rain over the Mid-South, Ohio Valley and Northeast.

Outlook for the middle and latter part of May (a 2-4 week outlook is by definition low confidence!):

• Through mid-month:
  • Warm in the Central and East U.S., generally east of I-25.
  • Cool in California, the Great Basin, and Arizona.
  • Wetter than normal over Texas, Oklahoma, Deep South and the Southeast.
  • Also wetter than normal over the Northern Plains.
• Latter half of May:
  • Warmer than normal over the Pacific Northwest, Northern Rockies, central and northern Plains.
  • Cooler than normal over east Texas and the South.
• By the end of May:
  • Most of nation cooler than average.
  • Wetter than normal over eastern Texas, the Mid-South, mid-Mississippi Valley, and the Deep South.