Winter storm watch issued for much of D.C. area, except southern Maryland

Update, 1 p.m.: The National Weather Service has added southern Maryland to the winter storm watch, i.e. Calvert, Charles, and St. Mary’s counties.

From 7:15 a.m.: The National Weather Service has issued a winter storm watch for a large part of the Washington, D.C. metro region from Tuesday evening to Wednesday evening. Such a watch is issued for the potential for at least 5 inches of snow within 36 to 48 hours.

Charles, Calvert and St. Mary’s county are not included in the watch at this time.

Overnight models (since last night’s update) continue to paste the region with significant snow Wednesday. We will have updated accumulation possibilities and analysis on this storm, which we have named “Snowquester”, by early this afternoon.

Read more details about today’s weather and this week’s potential storm here.

Jason is currently the Washington Post’s weather editor. A native Washingtonian, Jason has been a weather enthusiast since age 10.
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