Good evening,
Here is the latest information regarding potential impacts from Dorian later this week. No conference calls are planned at this time. We expect to have more details later this week.
Period of greatest Threat: Friday night into Saturday morning
Locations most at risk: Cape and islands, as well as the adjacent coastal waters
Confidence: Moderate confidence overall. Lowest confidence with regards to wind and rainfall impacts. That will depend on the track, size and speed of Dorian. High confidence in a rip current threat into Sunday along ocean-exposed, south-facing beaches. Rough surf is expected, too.
While an offshore track is most likely, it should be noted the average error the past 5 years for a forecast at this time range is about 75-85 miles. Should Dorian track farther south and east, the wind and rainfall threats would be reduced. The rip current/rough surf threat is almost a certainty. As of the 5 PM forecast, the wind treat for portions of southern New England has remained nearly steady across the Cape and islands, especially across the outer Cape and Nantucket. The greatest threat remains over the coastal waters south and east of Nantucket.
The next scheduled briefing is after the 11 AM Thursday advisory from the National Hurricane Center, unless there is a need for a briefing sooner. Should you require any updates prior to that time, please feel free to contact us.
Matthew Belk
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