A new storm is on the way, and it will arrive Tuesday. There may be some sunshine early in the day, but clouds will quickly take over and the storm will arrive late morning/around noon. It’s moving in borderline cold air, so it could start as any icy mix around here before changing over to rain. Out west, that’s a different storm. The cold air will take longer to give way, so ice accumulations are possible – in particular for Garrett and Allegany Counties where a winter storm warning will be in effect. A winter weather advisory extends farther east into Washington County.
The rain will become heavy at times Tuesday afternoon and evening. That’s why a flood watch has been posted from Baltimore County down to D.C. It will wind down overnight, but we won’t be done with the storm Wednesday.
The driving low will still be hanging back to our northwest. Drier air will make a push Wednesday, allowing sunshine to break through and temperatures to spike in the 50s. However, clouds will return Wednesday night and colder air will arrive Thursday. There could be rain and snow showers Thursday with the colder air, as temperatures drop to the 40s in the afternoon.
We will be below the average of 48 degrees to start out March on Friday with a mix of clouds and sunshine. Then, even colder air will arrive with a lot of clouds – and maybe a shower or two over the weekend. Highs will be in the lower 40s.