7:00 AM | ** Accumulating snow threat late Thursday followed by bitter cold; brutal cold air threat for next week**

6-Day Forecast

Today

Partly sunny, windy, cold, highs in the low 40’s

Tonight

Mostly clear, cold, lows in the low-to-mid 20’s

Wednesday

Partly sunny, cold, upper 30’s

Wednesday Night

Becoming cloudy, quite cold, upper 20’s

Thursday

Cloudy, cold, occasional snow that can mix with rain for awhile; if there is a mix, then it should change to all snow by late in the day and continue at night with accumulations likely, upper 30’s

Friday

Becoming partly sunny, windy and very cold, low 20’s

Saturday

Brutal cold start to the day and a cold afternoon, mostly sunny skies, low 30’s

Sunday

Mostly cloudy, not as cold, low-to-mid 40’s

Discussion

A storm will move off the Mid-Atlantic coastline late Thursday and it is likely to bring accumulating snow to the region; especially, to the north and west of the District. This potential Northeast US snowstorm will be aided by a powerful upper-level jet streak, cold Arctic high pressure to the north, and lots of moisture riding northward from the Gulf of Mexico. While the snow can be mixed with rain for awhile during the onset of the storm on Thursday, precipitation will likely become all snow late in the day and continue as snow Thursday night. This storm will be followed by bitter cold air with temperatures likely holding in the low 20's for highs on Friday on top of a fresh snowpack, and then low temperatures by early Saturday morning will plunge to 10 degrees or below in some of the normally colder northern and western suburbs. Furthermore, all indications are that this late week bitter cold air outbreak will not be the last. In fact, there is the potential for an incredibly cold air outbreak to arrive in the Mid-Atlantic region by around Tuesday of next week.