7:00 AM | ***Bitter cold air arrives on Tuesday and it will be accompanied by a snowstorm***

6-Day Forecast

Today

Partly sunny, milder, highs in the low-to-mid 40’s

Tonight

Becoming mostly cloudy, turning colder, lows near 20 degrees by morning

Tuesday

Cloudy, breezy and very cold with periods of snow, temperatures slowly falling through the day into the low-to-middle teens by day's end

Tuesday Night

Bitter cold with snow ending after midnight, breezy, total snow accumulations on the order of 4-8 inches, middle-to-upper single digits for overnight lows

Wednesday

Brutal cold with partial sunshine, temperatures hold in the mid-to-upper teens for highs

Thursday

Partly sunny, very cold, snow showers possible, low-to-mid 20’s

Friday

Mainly sunny, brutal cold, near 20

Saturday

Partly sunny, not quite as harsh, near 30

Discussion

An amazing weather pattern is setting up for the northeastern US for the next week or so with three separate bitter cold Arctic blasts and a snowstorm on Tuesday that will accompany the first Arctic air invasion. An Arctic front slips through the region late today and this will set the stage for some incredible winter weather over the next week or so. The Arctic front will drop just to our southeast overnight and low pressure will ride along the frontal boundary producing snow in the region on Tuesday. The combination of an injection of fresh Arctic air, huge high pressure building to the north, and an impressive upper level short wave of energy rounding the base of a long wave trough will generate quite a snowstorm for the I-95 corridor on Tuesday. The snow should develop by mid-morning - largely sparing the early morning rush hour - and then will pick up in intensity for the afternoon and wind down just after midnight. After a mild start to the week today, temperatures will drop overnight to near 20 degrees by early tomorrow morning and will slowly drop during the snowstorm reaching the middle teens by day's end. Tomorrow night will feature single digit temperatures all along the I-95 corridor for overnight lows and temperatures will not be able to escape the teens on Wednesday. A second Arctic blast will arrive Thursday night reinforcing the bitter cold pattern and then a third, and perhaps the coldest of the bunch, will arrive early next week. That third Arctic blast to arrive in the northeast US early next week will have its root in Siberia and it could be quite incredibly cold. As far as snow accumulations are concerned, it looks like a general 4-8 inch snowfall in the I-95 corridor from DC-to-Philly-to-NYC and the Jersey Shore will not escape this as even slightly higher amounts are possible in that area. One final note - all preliminary snowfall accumulation estimates could be increased later today as the trend is up for precipitation totals.

Video

httpv://youtu.be/b3yDjoePRyM