Good afternoon,
We wanted to send a general heads-up email on a potential multi-hazard storm for late Thursday night into Friday night. No wintry precipitation/ice is expected, but heavy rainfall and associated flooding impacts, strong winds and minor coastal flooding are possible. Here are the details below.
What / Where / When ...
- Heavy rainfall across all SNE
- Rain starts late Thursday night, with heaviest rainfall expected during much of the day on Friday and possibly lingering into Friday evening.
- Rainfall amounts of 1.5 to 3 inches, with locally higher amounts possible.
- Heavy rainfall will likely result in urban and poor drainage flooding, along with some river flooding as well. Moderate river flooding is possible if rainfall approaches 3 inches.
- Strong southerly winds
- The greatest risk for strong to damaging winds will be across SE New Eng, particularly RI and southeast MA and Cape/Islands during Friday possibly into Friday evening.
- Potential for wind gusts over 50 mph.
- If strong winds are realized, tree damage and isolated to scattered power outages will be possible.
- Minor coastal flooding along the south coast
- Mainly during the early Friday evening high tide.
- Storm surge around 2 ft possible with 10+ foot seas just offshore.
- Minor flooding possible along the shores of Narragansett Bay and Buzzards Bay, as well as splashover and minor flooding along ocean exposed south coastal beaches.
Uncertainty ...
- Heavy rainfall: High confidence that heavy rainfall will occur, but there is uncertainty with respect to where the axis of heavy rainfall will set up and timing of the heaviest rainfall.
- Strong winds: Uncertainty with how strong the winds will get near the south coast and extent of any wind damage, and also the timing of the strongest winds.
- Coastal flooding: There is uncertainty if there will be enough storm surge during the Friday evening high tide to produce minor flooding.
More details will be provided during the next dew days.
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