Updated p.m. Sunday 27 February
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.
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- Rain and high elevation snows for the Pacific Northwest for much of the week.
- Unsettled weather moves into California by Thursday.
- Significant late-winter storm for the Rockies and central portion of the U.S. next weekend.
- Warm weather south of I-70 from Baltimore to Denver most of this week; colder than normal temperatures for the west starting Thursday.
Outlook for Tuesday – Thursday 1-3 March:
— On Tuesday, rain for the Pacific Northwest. Some snow for interior and northern New England.
— Wednesday brings more rain for the Pacific Northwest.
— Snow develops over the Dakotas
— The next system out of eastern Canada brings more snow to NY and New England.
— Wednesday will be a warm day south of I-70 from Baltimore to Denver
— On Thursday, the rain moves southward along the West Coast to central and northern CA.
Outlook for Friday – Sunday 4-6 March:
— Rain and snow Friday for CA, the Great Basin, Inter-Mountain West and the Rockies.
— Low pressure develops Friday afternoon east of the CO Rockies.
— On Saturday, the low moves into the Central Plains.
— Extensive snow in the western High Plains, and northern and central Rockies.
— Rain, freezing rain and snow across the Midwest and Great Lakes.
— By Sunday, the storm moves through the Great Lakes and into Canada
— Heavy rain for the Northeast; some snow and ice for northern New England.
— Snow continues over the central and southern Rockies.
— Also a Sunday, a new low pressure forms over eastern TX. Rain for the Southern Plains, Mid-South and Gulf Coast States.
Here are the temperature, precipitation and snowfall outlooks for Tuesday – Sunday 1-6 March
Average temperature difference, relative to normal, Wednesday – Sunday 2-6 March 
Percentage of precipitation, relative to normal, through Sunday 20 February. Red and brown is drier than normal; green and blue is wetter than normal. 
Total amount of expected precipitation, through Sunday 6 March. 
Expected snowfall amounts through Sunday 6 March. 
High temperatures Wednesday 2 March
Here is the temperature and precipitation outlooks for Saturday – Wednesday 5-9 March
Here is the temperature and precipitation outlooks for Monday – Sunday 7-13 March
