SNOW POSSIBILITIES LOOKING MORE AND MORE LIKELY
Outlook for March 5/6, 2013 | Mark Gonzalez
TUES AFTERNOON/EVENING: precipitation starts to move in from the south/southwest by rush hour… will probably start as rain for everyone in the Metro and south and east.. further west mostly snow.
OVERNIGHT TUES/EARLY WED morning: as precip. intensity begins to increase we should see some dynamic cooling and a changeover to SNOW from west to east overnight into early Wed morning…although ocean/bay influences may cause RAIN to hang on longer on the Eastern Shore and near the bay through the late AM hours. However, If the storm tracks further south, this will allow more cold air to seep in further south and east causing the changeover to occur more quickly south and east of I-95.
WEDNESDAY AFTERNOON AND EVENING: Heavy snow and winds will prevail… significant accumulations are a good bet and maybe power outages as well. The variability of the RAIN-SNOW line and where it sets up makes exact accumulations still a bit difficult to forecast at this point-we have to remember that for the Metro area and south and east to get heavy snow accumulations in March and break through that higher sun angle we need heavy intensity of precip and a strong flow of arctic air from the north. At any rate its a good bet west of the Chesapeake Bay (but east of the Blue Ridge) someone receives 12 inches plus…precip changes to all snow for everyone all the way to the coast as the storm exits late Wednesday night. Some snow bands may hang on into early Thursday morning possibly giving the Eastern Shore a additional shot at significant accumulations.
In summary- more snow the further south and west you are-these are not exact amounts rather potential accumulations as we see at this point-expect this to change:
the Eastern Shore and NE Maryland-4 inches plus
Baltimore Metro- 6 inches plus
Southern Maryland and Annapolis-8 inches plus
DC Metro Area-12 inches plus
Western Maryland- 8 inches plus