Just a quick update... the surge is now about 2 feet above the astronomical tide at Nantucket, with about an hour until high tide. The 3 ft. astronomical tide, plus the 2 ft. surge will lead to 5 ft., which is the threshold for the start of some minor coastal flooding in Nantucket Harbor -- although 5.5 ft is when more significant flooding occurs there.
-- Glenn Field
NWS - Norton, MA
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