December 18th, 2024

 

Daily forecast discussion…

Today’s temperatures are mild

The surface chart and radar show a Clipper system approaching from the west. Ahead of the cold front rain will move over the region late today into tonight, This will change over to wet snow for parts of Pennsylvania, New York State and Northern into Central New England, this changeover will occur first in the higher terrain.

This is going to be a quick mover, so rain/snow amounts will be light, generally 0.25 to 0.75 of an inch of rain. With those that changeover to snow, seeing a T-an inch in the valleys, then a general 1-3 inches of snow elsewhere, with the higher terrain of the Adirondacks, Greens, and Whites seeing 3 to around 6 inches. expect brisk winds with the system. The system will be pulling away on Thursday morning, allowing for clearing skies and slowly falling temperatures. Behind the departing Clipper, limited lake effect will be falling downwind of the Great Lakes, accumulations should be light.

For Friday, another disturbance will move through, this will bring widespread light rain and snow showers and windy conditions across the region, again snow amounts will be light, with perhaps a few inches in the highest elevations. Behind the front, limited lake effect will once again be falling. We’re going to see low pressure develop offshore from here it looks to track towards Nova Scotia Friday night into Saturday. The ocean system looks to stay far enough  offshore for the bulk of this to stay to the east. But it could get close enough for a bit of rain/mix/snow over parts of New England. There could even be a few snow showers over the northern Middle Atlantic and I-95 corridor, there is a chance for very light accumulations for eastern north Maryland,  north Delaware, and part of New Jersey into NYC and Long Island.  Any westward shift in the track, could bring more impacts for the region. Behind all of this Arctic air will invade the region. This will be the coldest air so far this season, just in time for the Winter Solstice which starts Saturday at 4:21 am. Saturday will be cold and windy, with Sunday being even colder but with less wind. The cold will stick around for Monday, before starting to lift out. For Tuesday into Wednesday it will be warmer, but temperatures don't look to be as warm as they did a few days ago.  There is a chance for another Clipper like system looks to move through on Christmas Eve, bringing a chance for rain for southern parts of the region, and a chance for light snow along the New York State/Pennsylvania border and northward across New York State and Northern and Central New England. Snow amounts don’t look to be impressive.  Time for this to change so we will see. After Christmas it looks to turn quite mild. But I don't think it will last; as January still looks to be very cold.