From the National Weather Service:
Lots of uncertainty with the upcoming #storm. Temps from the surface through several thousand feet in the atmosphere (where precipitation forms) will be right around freezing. A one degree shift one way or the other will make a big difference between cold rain or heavy wet #snow. pic.twitter.com/9D3fYutTm4
— NWS DC/Baltimore (@NWS_BaltWash) March 19, 2018
Your full forecast says to expect a wintry mix to snow Tuesday and Wednesday.
