The SI Weather
12Feb/13Tue

7:00 AM | Rain moves in tomorrow afternoon and changes to accumulating snow tomorrow night

6-Day Forecast

Today

Mostly sunny, windy, cool, highs in the low 50’s

Tonight

Partly cloudy, cold, lows in the low 30’s

Wednesday

Becoming mostly cloudy with rain during the afternoon, chilly, low-to-mid 40’s

Wednesday Night

Rain mixes with sleet and snow and then changes to all snow, accumulations are possible primarily to the N and W of the District where 1-2 inches could fall, cold, low 30’s

Thursday

Partly sunny, chilly, mid-to-upper 40’s

Friday

Mostly sunny, chilly, mid-to-upper 40’s

Saturday

Mostly cloudy, breezy, colder, chance for snow showers, mid 30’s

Sunday

Mostly cloudy early with snow showers possible then partly sunny, windy, cold, low 30’s

Discussion

Weak high pressure will move into the region today bringing with it breezy and chilly conditions. Low pressure will move from the southeastern states tomorrow to the Mid-Atlantic coastline near southeastern Virginia by later tomorrow night. The air will only be moderately cold for this system; consequently, precipitation should begin here in the form of rain during the afternoon hours. However, once the low scoots by to the coast and our winds shift to a more northerly direction, colder air will move in and the rain will mix with sleet and snow and then change to all snow tomorrow night. Accumulations are possible by later tomorrow night primarily to the N and W of the District where 1-2 inches could fall. Moderate cold weather continues on Thursday and Friday, but then colder air plunges into the eastern states this weekend, and that cold air outbreak could be accompanied by some steady snow or just snow showers. More on that weekend threat as the week progresses.

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