A Winter Weather Advisory is in effect for most of the state (from Cecil County southwest to Montgomery County to everyone west of that) through varying times Wednesday night. For the immediate metro area, that advisory continues through 10 p.m.
It hasn’t happened much this year, but we are getting a little winter around Maryland. This is not going to be a huge winter storm, especially compared to storms of recent years, but there will be some accumulation in parts of the state. Snow has already started falling from Western Maryland all the way down to the city. There is more of a rain/snow mix going on just to the southeast of the city (aligning just south of I-95 like usual), while rain is wetting Southern Maryland and the Southern Eastern Shore.
This is just the beginning. This storm is going to pick up in intensity through the afternoon and continue into the evening. Unfortunately, it will coincide with the evening commute. The roads have been so warm lately, and temperatures will remain above freezing for a lot of the metro area through the afternoon, so a lot of this snow will melt when it hits the ground. It will have a better chance sticking to the grass and trees. However, when the sun sets and temperatures start falling, we could see a small accumulation.
This is still our current thinking:
-From northern Cecil, Harford, Baltimore counties west, generally 1-3″.
-The immediate Baltimore region will be more like a slushy coating of 1″.
Even though the storm will wrap up Wednesday night, untreated roads could be icy by the morning. We are forecasting a low of 27 degrees at BWI-Marshall. That means that a lot of the state will go below freezing overnight. Any slush that doesn’t melt away will freeze up by the morning. Please allow yourself some extra time to get out and going Thursday morning. But by Thursday afternoon, none of that will be a problem as we warm up to 46 degrees.
Warmer air will hang around through Friday with a high near 50 degrees. Then, a new round of cold air comes rushing our way over the weekend. An Arctic cold front could produce some rain and snow showers as it moves through Saturday. It will keep highs in the 30s Saturday afternoon, drop lows to the teens/near 20 degrees Sunday morning, and highs Sunday afternoon in the mid 30s. Yes, after spending so much time above average, we are going way below average – at least briefly. By the time Monday arrives, the Arctic air will be leaving us with highs back up to and slightly above the then average of 44 degrees.