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WEATHER BLOG: Saturday

High pressure will be settled in nicely over New England today, but a stalled from will be found over the Virginias. As a result, the further north along the I-95 corridor the nicer the day today. Near the Mason-Dixon line, it is likely to be cloudier than not, and there is concern about a stray shower or thunderstorm.

On Sunday, the tail end of the stalled boundary will wiggle northward over and west of the spine of the Appalachians, as high pressure drifts towards atlantic Canada. Cloud cover will continue over the region and at minimum the mention of precipitation will need to be carried. Temperatures may come down a few degrees with the cloud cover but nothing extreme, and the end of the weekend will be acceptable to most.

On Monday, a trough pushing through central Canada will impart a broad southerly flow over the east coast and while the front will be largely washed out, strong warm air advection will bring the chance for showers across a majority of the I-95 corridor. Not a washout of a day by a long shot but not pleasant either, in fact dreary might be an acceptable term. That southerly flow will continue into Tuesday as the trough progresses eastward, bringing warmer air aloft and getting out high temperatures back into the 80s. We could see a shower or two on Tuesday as well but most of the activity will be focused on the developing cold front to our west. While one might expect that cold front to reach the area on Tuesday night, the models are definitive on that front falling apart rapidly after passing east of the Appalachians. My feeling is something lasts from the daytime into the evening, however the chance for any location seeing rain Tuesday night is less than 20%, and so I've left it out of the forecast.

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