Tropical Storm Henri: Tropical update for Southern NY, Long Island and Southern New England a.m. Saturday 21 August 2021

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  • Hurricane Warning for Long Island NY and the CT Coast
  • Hurricane Watch for the RI Coast and southeast MA Coast, Block Island, Nantucket, Martha’s Vineyard
  • Storm Surge Warning for Long Island Sound, South Shore western Long Island, Narragansett Bay RI, Nantucket Sound
  • Storm Surge Watch for Cape Cod Bay

As of Saturday morning, Tropical Storm Henri is located about 550 miles south of Montauk Point NY, moving to the north-northeast at 12 mph. Maximum sustained winds are 70 mph. Henri is expected to strengthen into a Hurricane later today.

Tonight, Henri will turn left to the northwest and make landfall on Long Island Sunday midday. This track is hazardous for western Long Island, the CT and RI Coasts and the southeastern MA coast, as it will bring significant storm surge to these areas along with near hurricane force winds.

Tropical Storm force winds are likely on Long Island and the southern New England Coastline starting Sunday morning. Destructive winds (greater than 60 mph sustained) are likely over much of western Long Island and along the CT coast. There will likely be a 3-5 foot storm surge in Long Island Sound, the south shore of western Long Island, Narragansett Bay, Buzzards Bay and Nantucket Sound. Expect a 2-4 foot storm surge in Cape Cod Bay and the south shore of eastern Long Island.

In addition to the winds and storm surge, Henri will bring up to 4-6 inches of rain to the NY Lower Hudson River Valley, western CT and western MA. RV’ers in these regions should be on the alert for flash flooding and be very careful camping near streams or small rivers that could rise rapidly Sunday night and Monday.

Please follow the directions and guidance of your local emergency management officials. Personally, if I was visiting in an RV, I would leave the CT / RI / Southeastern MA coast if possible. I would move inland away from storm surge threats on Cape Cod. I would also check any camping site in western MA, much of CT and south of Albany NY for flash flood potential and move to higher ground today. Regardless, I would ensure I had full tank(s) of gas/diesel, full fresh water and propane, and empty gray and black tanks. Ensure you are out of danger of any storm surge. On western Long Island, CT and RI the strongest winds will likely be from the east and southeast

Please monitor the National Hurricane Center forecasts, either directly from their website, through local TV stations, or reputable, established weather websites.

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