RV Weather Enterprises

• Heat in the West, heat in the East, relatively cool for the northern Rockies and northern High Pains.
• Weak jet streams will enhance the chances for severe weather, first over the Ohio Valley and Mid-Atlantic regions, then over the central and northern Plains.
• Heavy rains for the Midwest on Sunday, moving into Pennsylvania, New York and New Jersey Monday and Tuesday.

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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.

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From the RV Weather Summer Office in Moose Wyoming

Big Picture for the coming holiday weekend and next week:

• Heat in the West, heat in the East, relatively cool for the northern Rockies and northern High Pains.
• Weak jet streams will enhance the chances for severe weather, first over the Ohio Valley and Mid-Atlantic regions, then over the central and northern Plains.
• Heavy rains for the Midwest on Sunday, moving into Pennsylvania, New York and New Jersey Monday and Tuesday.

Temperature and Precipitation Outlook:

• Warmer than normal over the Southwest, west of I-15 and east of I-35.
• Cooler than normal for the northern Rockies, and the northern and central High Plains.
• Wetter than normal for Wyoming and the central Plains. Also for the mid-Mississippi Valley, the Mid-South, the Midwest and the Northeast.
• Drier than normal west of I-25 (except Wyoming), Texas, Florida, the northern Plains, and the Upper Midwest.

Highlights by day (1 – 6 July):

1. Saturday:
   • Severe thunderstorms possible from the Mid-Atlantic region, westward to the Ohio and Tennessee Valleys and to the Mid-Mississippi Valley.
   • Heavy rains over southern Iowa / northern Missouri and Illinois and Indiana.
   • Record heat possible in interior California and the Deep South.
2. Sunday:
   • Severe thunderstorms possible over the western Ohio and Tennessee Valleys eastward to the Mid-Atlantic region.
   • Heavy rains over northern and central Illinois, Indiana, Ohio, West Virginia and western Pennsylvania.
   • Record heat possible for interior California, the Southwest, and the central Florida Peninsula.
3. Monday:
   • Severe thunderstorms possible over the western Ohio and Tennessee Valleys eastward to the Mid-Atlantic region.
   • Strong winds over northwest Wyoming.
   • Heavy rains over eastern Ohio, Pennsylvania, the Southern-tier of New York, northern New Jersey.
   • Record heat possible for the Southwest and Southeast Coast.
4. Tuesday (Happy Independence Day!):
   • Severe thunderstorms possible over the central and northern Plains.
   • Strong winds over central and western Wyoming.
   • Heavy rains over New York.
5. Wednesday:
   • Severe thunderstorms possible over the central and northern Plains.
   • Record heat possible for far-west Texas.
6. Thursday:
   • Severe thunderstorms possible over the central and northern Plains.
   • Heavy rains over central and southern Louisiana and Mississippi.
7. Click here for the latest National Weather Service 3-7 Day outlook

Tropical Outlook:

• There is a chance, albeit extremely small, that the remnants of Cindy could re-generate into a tropical storm around Bermuda, then move north.
• No other tropical storms are expected to develop in this forecast period.

Outlook through mid- and latter July (a 2-4 week outlook is by definition low confidence!):

• Typical for July, only subtle changes in the overall weather pattern.
• The second half of the month looks to be much warmer than normal for the southern half of the country.
• California and much of the Pacific Northwest gets a temperature break after the first week of July.
• Cooler than normal temperatures persist over the northern Rockies and the northern High Plains into the second half of the month.
• Second week of July could be quite wet from the Plains to the Eastern Seaboard, although Florida will remain dry.
• Southern half of the country dries out as it heats up in the latter part of July.