Low pressure taking shape off the coast of the Carolinas – which is currently bring snow to parts of the Southeast(!) – will rapidly intensify as it moves northeastward today and tonight. This storm will pass southeast of Nantucket Wednesday morning and pull away from our area tomorrow afternoon.
This spring nor’easter is destined to bring us a 12 to 18 hour period of nasty weather beginning tonight and continuing into Wednesday morning.
Expect clouds to thicken this afternoon and for skies to turn overcast this evening. Light rain will break out around the area well after dark (10PM to Midnight) and quickly become a steady, cold soaking rain overnight. As we push into the pre-dawn hours, elements of heavy rain will advance northward over the area, with embedded downpours impacting the region into the first part of Wednesday morning. Rain will then gradually lighten up and then taper off over the course of Wednesday morning…with improving and drying conditions during the afternoon. When all is set and done, a solid 1 to 2 inches of rain is likely to have fallen across the Cape.
In addition to a soaking rain, a period of strong – perhaps damaging – wind gusts is likely from this fast moving and rapidly intensifying storm center. Strong north and northeast winds overnight will shift to the north and northwest near dawn and will howl for several hours before gradually abating during the mid to late morning hours. Sustained winds of 20 to 40 mph are likely around the Cape and Islands with frequent gusts of 35 to 45 mph anticipated. The strongest winds are likely first thing Wednesday morning (6AM to 10AM) and it’s during this time frame that a few spots could record some gusts in excess of 50 mph.