A strong area of surface high pressure will continue to advance southeastward toward the Capital Region today, cresting over the area tonight. With mainly clear skies, and light to no wind, a near ideal set up for radiational cooling will unfold across the region. Temperatures are expected to drop to near or below zero across the Capital Region, with lower readings expected across the north country.
High pressure will then transition slowly offshore, over the Atlantic Ocean, through Wednesday and into Wednesday night. This will allow a potent storm, developing over the southeastern states, to move northeast to the outer banks of North Carolina by Thursday morning, and then slowly up the eastern seaboard through the day on Thursday. Snowfall is expected to develop over the Capital Region on Thursday, and may last through Thursday night.
There is still some question as to the ultimate track of this storm, and any interaction it may have with an advancing clipper system that will dive southeast from the Canadian Prairie provinces during this time. Snowfall accumulation looks like a good bet over the Capital Region, though the difference between a moderate to a heavy snow accumulation remains dependent on the factors mentioned above. Stay tuned for further updates.
...Below is the official forecast for the Capital Region and vicinity...
Today: Mostly sunny and cold. High 20-25. Northwest winds 5-15 MPH.
Tonight: Mostly clear, calm, and frigid. Low near zero.
Wednesday: Mostly sunny and cold. High near 25. Variable winds 5-10 MPH.
Wednesday Night: Mostly clear to start with increasing clouds late at night. Low 10-15. Light south to southeast winds.
Thursday: Increasing clouds with periods of snow developing by afternoon. High in the lower 30’s. North winds 5-10 MPH. Chance of snow is 70 percent.
Friday: A 40 percent chance of a wintry mix of snow, sleet, and/or rain. High near 35 and low near 20.
Saturday: Mostly sunny and breezy. High near 30 and low near 10.
Sunday: Mostly sunny. High near 30 and low near 10.
Monday: Mostly sunny. High near 30 and low near 15.