... Complex winter weather coming to Baltimore/Washington region
tonight through Tuesday...
A complex winter storm scenario will develop tonight and continue
through Tuesday for the greater Baltimore/Washington region.
Low pressure will cross the Ohio Valley tonight... then redevelop
offshore of Cape Hatteras as a strong coastal storm during the
day Monday. This will give the greater Baltimore and Washington
region two separate bouts of winter weather.
The first round of precipitation will start early this evening in
western Maryland... extreme northern Virginia... and the eastern
Panhandle of West Virginia and continue through Monday. In these
areas... the precipitation may start as a period of mixed rain and
snow before changing over to all snow by daybreak Monday. The
snow will continue through the day on Monday... making travel
difficult particularly north of Interstate 66 and west of the Blue
Ridge. Winter storm warnings have been posted for this region.
Tonight... as the precipitation progresses eastward towards the
Interstate 95 corridor... rain will mix with snow in the immediate
Baltimore and Washington DC metropolitan areas as it spreads
eastward. However... by daybreak Monday... precipitation should
change over to all snow across the entire region with the
exception of southern Maryland. Some models suggest that
precipitation on Monday will stay all rain in areas south and
east of Washington DC... so there remains considerable uncertainty
for areas of Maryland south of Route 50. Winter weather
advisories have been issued for the greater Baltimore and
Washington metropolitan areas.
Finally... as the coastal storm starts to rapidly develop late Monday
afternoon off the North Carolina coast... a second round of winter
weather may further impact the region... this time primarily east
of Interstate 95. Snow bands along with gusty northeast winds up
to 40 mph are expected to develop around the powerful storm system
Monday night and Tuesday as it moves northeast towards Cape
Cod. An additional 5 inches or more of snow is possible in the
counties along Maryland's portion of the Chesapeake Bay. Blowing
snow is also possible... reducing visibilities to below one-quarter
of a mile at times. Winter storm watches have been issued for the
Maryland counties directly adjacent to the Chesapeake Bay.
Stay tuned to your favorite media outlet and NOAA Weather Radio
for further updates on this developing winter storm system.