The warm weather this past weekend doesn't put anyone in the mood for anything related Christmas. After a rainy Monday, a blast of cold air comes in just in time to put everyone back into a festive, holiday mood. Even better for yuletide lovers, now is also in the forecast for Long Island.
After a record high Sunday, temperatures started dropping in the tri-state area thanks to a slow-moving cold front. Monday was manic at the malls, but sloppy travel outside. Behind the front is a cold, Canadian airmass that brings winter right back into the picture. Lows in the 20s to near 30 Monday night, and then highs are only in the 30s for Tuesday through Thursday. Christmas Day is the peak of the cold with highs barely reaching 30, teens at night.
Precipitation is hard to come by in Arctic blasts to begin with. A weak disturbance, more like part of a second cold front acting as an Arctic cold front, swings by Tuesday evening, Christmas Eve. Most computer guidance spits out light precip for this timeframe. Depending on temperature, this could be a rain shower, but there's the likelihood of snowshowers coming through, as well.
The front is moisture starved, so don't expect much accumulation. But if the snow comes down hard in a squall in spots, that could coat the ground in a hurry. Also, be watchful for these heavier squalls when travelling, as visibility could be reduced very quickly, in addition to the hazard of slick roads.
Sunshine is abundant for Wednesday and Thursday before temperatures rebound late in the week and into next weekend.