Synoptic Weather

NMC SFC Map

https://www.wpc.ncep.noaa.gov/...

Today's Weather: Coldest air is located from northern Alaska and Yukon -35f. A string of weak low pressure areas are situated along a frontal system that stretches from the North Carolina Coast through the Southeast and into Wyoming.

Radar: Growing area of rain and snow off the Delmarva Peninsula moving east-northeast. A band of mixed precip lies from VA to Illinois. Another batch of snow from Lake Erie to Minnesota is moving eastward. The Pacific Northwest is experiencing localized snow in the Rockies.

GFS: Over the next 6 hours low pressure organizes over southern Ohio and moves east pushing mainly snow and some rain ahead of it. Snow moves into western New England late this afternoon. Meanwhile, a secondary coastal storm that forms off the Delmarva Peninsula moves east (unlike previous storms that travelled to the Canadian Maritimes). 5400m thickness is projected to stretch across central CT., so the GFS is projecting a mixture for coastal CT, with the heaviest snow occurring from inland CT/RI to the VT,NH,ME border during the early morning hours of Sunday. Northern New England is projected to get lesser amounts. The system moves out of New England Sunday afternoon with a reinforcement of colder air with the usual lakes and mountain snow showers across NY, New England.

Tuesday night, another low forms over southern Mississippi and then reforms off the coast of the Carolinas spreading rain across the Southeast with some snow for southern PA to northern VA.

Wednesday night, low pressure forms over western TN and heads towards the Ohio Valley. Meanwhile a secondary coastal storm tries to form off the Delmarva Peninsula.
This run, the GFS shows the original storm holding together enough to push milder air into southern and central New England making precip mainly mixed and rain. However, if the coastal over Delmarva prevails then this could increase the possibility of snow over rain for southern New England on Thursday morning.

The next system forms over eastern Nebraska at the end of the week and creates a situation similar to the previous storm, with the primary low moving up the St. Lawrence Valley and a secondary low trying to form off the South Jersey Shore. The GFS is again predicting the primary to stay intact enough to produce rain for southern New England and snow for Northern New England next weekend.

After that the GFS is calling for another coastal storm early next week.