PM Update: More rain tonight into Friday, with temperatures plummeting behind a cold front.
Rain may be at its heaviest tomorrow morning. Some wintry mix might form as it ends.
* Winter weather advisory for northern Maryland 5 a.m. to 4 p.m. Friday for possible light glaze of ice *
An on-and-off rain through much of the day has dropped a quarter- to half-inch locally so far. We could double those totals before precipitation ends Friday. Thank a slowly meandering cold front-loaded with plenty of moisture headed our way. Behind the front, temperatures will probably tank Friday.
Through Tonight: Rounds of showers or steadier rain will move through this evening. It may be centered north and west much of the night, as the cold front slowly slides eastward. Winds will be out of the south-southwest around 10 to 20 mph, with gusts near 35 mph as the front arrives.
Tomorrow (Friday): The cold front should pass near and shortly after sunrise. Winds will probably shift to the northwest as cooler air dumps in. A period of steadier rain may persist into the midday, behind the front. By afternoon, precipitation will be mainly shifting east of Interstate 95, but it may linger nearer to the Chesapeake Bay. Rain may end as some mixed precipitation, with some minor icing risk farther north across northern Maryland.
Temperatures should fall through the day, with highs in the morning. We’re talking mid- to upper 50s or so in the predawn to near 40 by early afternoon. Winds will be out of the northwest around 10 to 15 mph, with gusts near 30 mph.
Find the front: On Friday morning we could wake up to the warmest local temperatures since the beginning of January. If so, don’t get used to it. A cold front is on the way. It’s no slouch of a front, either. Temperatures may fall 20 to 25 degrees during the day. When you add in gusty northwest winds, we’re looking at readings that feel 30 degrees chillier or more in the afternoon.
https://www.washingtonpost.com/weather/2022/02/03/dc-area-forecast-rain-falling-temperatures/?