Winter isn’t over … yet. Milder air will push into the Mid-Atlantic on Wednesday with a moisture-rich flow out of the Gulf of Mexico. Highs will rise into the upper 40s with periods of rain… heavy at times. An arctic front will slide through the Washington Area Wednessday night before stalling off to our south and east. Bitterly cold air will begin funneling into the DC Area overnight on Wednesday, changing the rain over to heavy, wet, accumulating snow.
By Thursday morning, temperatures will have fallen into the lower to middle 20s and as heavy snow continues to fall, roadways will become snow-covered with treacherous travel conditions. The next several images shows the latest Global Forecast System (GFS) model depicting the temperature plunge from Wednesday evening through Friday morning! Pretty unbelievable for March standards!
Snow will continue to fall throughout the day on Thursday, tapering off during the afternoon and ending during the evening.
The snow will start out heavy and wet during the pre-dawn hours on Thursday likely coating trees and power lines. As temperatures continue to drop into the lower 20s the snow will become more powdery, hopefully saving our region from widespread power outages. Temperatures overnight on Thursday will plummet into the single digits with more records broken! Unbelievable.
The combination of bitterly cold temperatures and heavy snow will cause treacherous travel conditions on Thursday. Winter Storm Watches will likely be issued by the National Weather Service today or during the overnight hours for what is looking like a high-impact March snow storm across the Washington Region.