Although we’re still expecting the coldest air of the season to trickle into the region Tuesday, most of the precipitation with an incoming front is expected to exit before temperatures fall enough to support snow. In other words, we’re predicting mostly rain that might end as a brief period of wet snow. The best chance to see flakes will be in colder areas north and west of Washington.
“The cold air is just too slow to move east for most of us except near the mountains or up towards the Pennsylvania border to get anything more than a few sloppy flakes of non-accumulating snow before the precipitation ends,” said Wes Junker, Capital Weather Gang’s winter weather expert.
The European and American models are in reasonably good agreement that, at least as of now, the ceiling on this event for snow might be a coating on grassy areas in our colder areas north and west of the Beltway.
“With temperatures forecast to be in the upper 30s to low 40s, there is good chance that the precipitation will never even mix with snow around the city and points east,” Junker said. “It’s hard to get excited about our snow chances for Tuesday."
Although more than just some wet flakes seems like a long shot, it will certainly feel like winter Tuesday into Wednesday.
Temperatures in the 50s very early Tuesday morning will fall into the mid- to upper 30s by the late afternoon and then below freezing Tuesday night. Highs on Wednesday will struggle to reach 40, more than 15 degrees below average.