It’s not going to be a major storm but some form of precipitation will develop across the area this evening from about 6 or 7PM and continue into the early morning hours. Surface temperatures are in the mid 30’s this morning, but dew points are in the teens so most areas will start as either snow or sleet and then eventually change over to freezing drizzle or light rain around midnight. As a result, untreated surfaces, especially elevated bridges and overpasses, could be icy during the overnight hours. Accumulations could range from a trace around the DC beltway to as much as 3″ along the MD/PA line. Interestingly, some of the short range models are insistent that this evening between 7 and midnight could be pretty snowy for most of central MD. I’m not sold on that as I think there will be more of a mix than snow for most of us, but keep your fingers crossed. Regardless, it’s not going to be a big event, but it’s something. To put it in perspective, I think that this would probably be a delay-event for most areas along and west of 95 in normal times.
Thursday’s system looks suppressed and weak to the south for now.
The Weather Mill 