Good afternoon everyone,
An ocean storm moving close to Southern New England from the Canadian Maritimes late Thursday night thru Friday will bring strong to damaging winds, building rough seas and minor to moderate coastal flooding potential for Friday morning's high tide.
Headlines:
- High Wind Watch: In effect Friday morning through late Friday night, for Cape Cod and the Islands.
- Coastal Flood Watch: In effect for Friday morning's high tide, for coastal eastern MA (including the city of Boston), Cape Cod and the Islands.
- Coastal Flood Advisory: In effect for Thursday morning's high tide, for Nantucket Harbor.
- Storm Watch: In effect Friday morning thru late Friday night, for the coastal and offshore waters adjacent Cape Cod and the Islands (excluding Buzzards Bay and Vineyard Sound).
- Gale Watch: In effect Friday morning thru late Friday night, for the remaining waters.
Details:
Coastal Flooding:
Thursday Morning: Minor Coastal Flooding
- Locations: Nantucket Sound
- Timing: From 6 AM to 10 AM Thursday.
- Impacts/Inundation: Up to one foot of inundation above ground level in low-lying areas near shorelines. [5.6 - 5.8 ft Mean Low Low Water].
Friday Morning: Up to Moderate Coastal Flooding
- Locations: Eastern coastal MA, Cape Cod and the Islands.
- Timing: Friday morning (6 AM to 10 AM Friday).
- Impacts/Inundation: For Cape Cod and the Islands: Up to two feet of inundation above ground level possible. For eastern MA, up to one foot of inundation above ground level possible.
- Confidence and Uncertainty: Moderate confidence on coastal flooding, greatest confidence for minor structural damage across Cape Cod and the Islands. A storm track closer to Southern New England may further elevate the coastal flood threat.
Strong to Damaging Winds:
- Locations: Cape Cod and the Islands.
- Timing: Northeast winds increase late Thursday night, with peak gusts Friday morning thru afternoon.
- Winds: North winds 25-35 mph with gusts up to 60 mph possible.
- Impacts: Possible downed trees and powerlines.
- Confidence and Uncertainty: Moderate to high confidence on gusts producing minor to moderate impacts across Cape Cod and the Islands. A closer storm track to coastal Southern New England would expand the coverage of stronger northeast winds further inland. In that situation, strong winds capable of minor tree/powerline damage could be possible as far west as I-95.
Supporting attached graphics include current headlines in effect, the maximum wind gust and maximum wave height.
Thank You!
Meteorologists Frank Nocera, Andrew Loconto, and Rodney Chai
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