Snow shower threat late tonight/early Wednesday
In the near term, there can actually be some snow showers activity in the DC-to-Philly-to-NYC corridor from late tonight through tomorrow morning. This threat of snow showers will be a result of a strong wave of energy aloft that will push eastward from the Ohio Valley and move overhead late tonight and early on Wednesday. Colder air will move into the Mid-Atlantic region on Wednesday following the passage of this wave of energy and winds will be quite strong from a northwesterly direction with gusts to 30 mph or so. Temperatures late tomorrow night will drop to the lower 20’s in many suburban areas along the I-95 corridor and it’ll stay chilly later in the week.
The weekend will feature a reinforcing shot of cold air and this could set the stage for our first threat of wintry precipitation in the DC-to-Philly-to-NYC corridor in the Monday/Tuesday time period. Low pressure is likely to pull out of the southern states early next week and cross over the Tennessee Valley and heads towards the eastern seaboard in the Monday/Tuesday time period. There will be enough cold air around to allow for the possibility of snow and/or ice at the onset of this system early next week; especially, in those areas north of the PA/MD border. There is a chance that mixed precipitation could change back to snow if this system ends up taking a track to the south and east of the I-95 corridor – stay too far away for any certainty.