Spotty snow moved across Pennsylvania as freezing rain broke out in Maryland and northern Virginia. Then, just in time for the morning commute, the precipitation became heavier. It was so slippery around the Philadelphia area that walking a few feet was an invitation to a nasty fall, and driving conditions deteriorated rapidly. Near Media, Pa., there was a 15-car pileup, and a photo of an overturned salt truck made the rounds on Twitter. Farther northeast, there were snow problems around New York City, Providence, R.I., and Boston.
Here's the morning video. As always, check back for updated videos on AccuWeather.com throughout the day, any day.
With a big high pressure area off the East coast and the nearest cold front in the Plains, there is time for mild air to replace the coldness all the way to Maine. The combination of melting snow and the coming rain will lead to street flooding and stream rises. The National Weather Service monitors the nation's rivers, and here is their outlook for the Middle Atlantic region from this morning.
In the I95 corridor, tomorrow will turn wetter and warmer. Sunday will turn dry and chillier, but no return of really chilly air is likely until midweek, and even then it will not rival the cold wave that swept through this week.
These two maps show the change from the very, very cold flow likely this Saturday to the much milder Pacific-origin westerly flow later next week.
When we look more closely, we see a variety of disturbances embedded in the main current, each capable of temporarily increasing or cutting off the chance of snow. This map shows the setup:
This map shows the circulation around the offshore storm and a larger but less intense storm moving into the Great Lakes. With this sprawling storm likely to be in the region for several days, the weather can vary widely.
...speculation about a snowstorm Monday or Tuesday, and one is still possible. However, timing and placement remain elusive. This map shows the GFS ensemble mean "solution" for Tuesday morning showing snow just off the New England coast. Watch this story evolve on accuweather.com all weekend.
As we look father out this month, it looks cold for the Great Lakes and Northeast (as well as deep into the South) in the middle of next week but milder the following week. This map, for next Wednesday, shows a cold flow from way north in Canada.