The SI Weather
21Jan/13Mon

7:00 AM |**The arrival of an Arctic blast later today could be accompanied by snow; more important threat comes at the end of the week**

6-Day Forecast

Today

Mostly cloudy, breezy, much colder than yesterday, snow showers possible later this afternoon, highs in the low 40's

Tonight

Mostly cloudy, windy, snow showers likely early which could produce a quick coating and some slippery spots, quite cold late with lows near 20 degrees

Tuesday

Windy and very cold with partial sunshine, low-to-mid 20’s

Tuesday Night

Partly cloudy, bitter cold, lows not far from 15 degrees

Wednesday

Partly sunny, very cold, mid-to-upper 20’s

Thursday

Becoming cloudy late, still very cold, near 30

Friday

Cloudy, cold, snow likely or a possible mixture with rain or sleet, low-to-mid 30’s

Saturday

Partly sunny, windy, very cold, mid-to-upper 20's

Discussion

The Arctic floodgates have now opened up and we’ll have a very cold and wintry week here with the coldest three days likely being tomorrow through Thursday. As a secondary push of Arctic air pours into the region later today and early tonight, snow showers will break out and there can be a heavier snow squall or two or even a brief period of steady snow. Small accumulations on the order of a coating to an inch with some slippery spots are possible through early tonight. Temperatures will drop near 20 degrees late tonight and will do no better than the 20’s for highs on Tuesday and Wednesday. By the end of the work week, there will be a threat for more significant snow or a possible mixture of ice and snow as a storm will approach the Mid-Atlantic from the Tennessee Valley and it’ll have quite a bit of moisture associated with it. Very cold air will follow that late week system for the upcoming weekend. Stay tuned.

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