Good morning everyone,
Attached is our latest one-page briefing and supporting graphics regarding the potential for heavy rainfall and significant flooding tonight and into Thursday. This may cause impacts such as road closures and washouts, as well as impact Thursday morning commuters.
No major changes since the last briefing. Flash flood watch remains in effect. Highest rainfall amounts are still forecast for areas south of I-90. Isolated rainfall amounts up to 7" are not out of the question.
Heavy rainfall and potential for flooding continues to be the greatest risk in this event. A possibility remains for strong thunderstorms late tonight into Thursday. These may carry with them a low probability of brief tornadoes or thunderstorm-related wind damage. The best chance for experiencing strong thunderstorms is along south coastal Southern New England and Cape Cod, highlighted in the area in forest green on the attached Thunderstorm Outlook graphic from the Storm Prediction Center.
Outside of the thunderstorm threat, there is also the potential for 30-40 mph wind gusts across eastern MA very early Thursday morning. With saturated grounds and fully leaved trees, downed trees and power outages will be possible.
Thank You,
Meteorologists: Rob Megnia and Hayden Frank
If you have any questions or would like more information, don't hesitate to contact us via this email address, on NWSChat, or at the following:
National Weather Service Boston/Norton, MA
46 Commerce Way