Rainstorm on the way- all you need to know!

A classical fall storm is on the way that will bring with it plenty of rain, wind and even some severe weather. Above is the official USWC rainfall forecast for the upcoming storm. Rain will overspread the area west to east starting Tuesday morning and continuing all the way through late Wednesday night. The heaviest comes late Tuesday night into Wednesday morning bringing isolated pockets of rainfall rates of 1-2"/hr in the heaviest bands. The system, seen below on satellite imagery, is beginning to pick up some gulf moisture and is already beginning to send it this way-hence the reason for the fog the past 2 nights.

This system will continue to pump gulf moisture up the east coast and as this system interacts with the LLJ(low level jet), it will be able to mix some strong winds down to the surface in heavier rain bands. Below is the USWC wind forecast for this system. We are calling for the strongest wind gusts to be over SE MA, Cape Cod & the islands. But, with fully leaved trees, it is likely that even 30-40mph wind gusts will bring down trees and knock over power lines.

Interaction with the LLJ will also also bring in the severe weather factor, focused more in western areas of New England & the Mid-Atlantic. The major severe issues will be damaging winds with the possibility of an isolated spin-up or two. SPC map and our USWC graphic below.

For now, enjoy your evening and the last of the warm weather for quite a while as this storm will usher in a pattern change (blog on that yesterday can be found under "winter blogs". For now, I'll leave you with the Southern New England 5 day for the rest of the week.