Extended outlooks are more general in nature 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.
For more information, check out the latest weather animations.
Here is the latest short term weather forecast.
- No big snowstorms impacting travel for Thanksgiving week.
- Some lake effect snows Monday night and Tuesday
- There will be a number of storms impacting both the west and the east with heavy rains and gusty winds.
- Cooler than average in the Southeast; warmer than average in the West.
Outlook for Saturday 20 November – Wednesday 24 November:
— Storm develops over the western Great Lakes Sunday evening and moves up the St. Lawrence valley by Monday night.
— Rain, some heavy, in the Northeast on Monday. Windy over the Midwest on Monday.
— Lake effect snows develop over Michigan Monday, then move east to NY, PA, WV western MD Monday night and Tuesday morning.
— Rain and mountain snows for the Pacific Northwest Monday night and Tuesday.
— Wind will be the main issue on Wednesday. Windy over New England, Southern Plains and mid-Mississippi River Valley, and the Northern Plains. Snow in the Northern Plains.
— In general, warmer than normal over New England, the Southern Plains, the Rockies and the Southwest. Cooler than normal over FL and the Southeast.
Outlook for Thanksgiving Day 25 November – Sunday 28 November:
— Pacific storms Thursday and Saturday. The Saturday storm is stronger and could bring rain as far south as San Francisco.
— Low pressure develops over northeast TX on Thanksgiving but unclear where this storm will go. There is potential for it to move into the mid-Mississippi River Valley, bringing significant rain and thunderstorms to the east and some snow to MO and AR. Lots of uncertainty with this storm at this time though.
— Similar temperature pattern as described earlier: Cooler than average over the Southeast, warmer than average over the Rockies and West as well as New England.
Potential snowfall accumulation Wednesday 17 November – Sunday 28 November 
Total precipitation as a percent of normal Wednesday 17 September through Sunday 28 September. Brown is drier than normal; green and blue is wetter than normal. 
Temperature departures from average, 20-25 November 
Temperature departures from average, 25-30 November
Surely do like this informational post. Thanks, David!
Thank you Cherie!