Low pressure is now forming over Delmarva region this morning, will move well south and east of region today. A steady area light to moderate snow now over Southern New Jersey and Delaware could give those areas 1-2 inches. While the rest of the Tri-state area see more light snow showers and flurries, with any accumulation likely under 1 inch.

Another shortwave and artic front, may produce few snow showers and flurries on Thursday afternoon and evening. Mainly north of NYC. The coldest airmass this week, will arrive on Thursday night and Friday. The NAM,GFS, ECMWF show 850mb near or below -20C Thursday night, early Friday. NW winds should relax by dawn and with some snow cover left, low temperatures in the single digits are likely for NYC area and near or below 0 for the NW suburbs.

Some record low temps will be challenged on Friday. Especially for JFK and LGA. NYC and EWR look to be just out of reach. Temperatures will slowly rise into lower 20s in the afternoon. These are some record lows around for the tri-state area on Friday 2/28/14:

NYC 5 1934
LGA 12 1980
JFK 15 1950
EWR 1 1934
BDR 10 1950
ISP 12 2008

A weak shortwave coming out from SW may produce a period of light snow or flurries on Saturday. A bigger system coming out the Southwest US, is likely produce more significant wintry precipitation in the form of snow, Sunday into Monday.  Still several days away to hone any down specific details.