1. Dangerous storm surge inundation is expected to continue today in portions of Long Island, Connecticut, Rhode Island, and southeastern Massachusetts, where a Storm Surge Warning has been issued. Residents in these areas should follow any advice given by local officials.

2. Tropical storm conditions will continue in portions of the tropical storm warning area into tonight.

3. Heavy rainfall may lead to considerable flash, urban, and small stream flooding, along with the potential for widespread minor to isolated moderate river flooding over portions of Long Island, New England, eastern New York, New Jersey and northeast Pennsylvania.

4. Swells from Henri will continue to affect much of the east coast of the U.S. during the next day or so. These swells could cause life-threatening surf and rip currents.

CHANGES WITH THIS ADVISORY: The Storm Surge Watch has been discontinued from East Rockaway Inlet to west of Mastic Beach, New York, and from north of Chatham, Massachusetts to Sagamore Beach, Massachusetts, including Cape Cod Bay. The Tropical Storm Warning from East Rockaway Inlet, New York to Manasquan Inlet, New Jersey has been discontinued. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Storm Surge Warning is in effect for...
- South shore of Long Island from Mastic Beach to Montauk Point New York
- North shore of Long Island from Montauk Point to Flushing New York
- Flushing New York to Chatham Massachusetts
- Nantucket, Martha's Vineyard, and Block Island A Tropical Storm Warning is in effect for...
- East Rockaway Inlet New York to Chatham Massachusetts, including Long Island
- Block Island, Nantucket and Martha's Vineyard A Storm Surge Warning means there is a danger of life threatening inundation, from rising water moving inland from the coastline. For a depiction of areas at risk, please see the National Weather Service Storm Surge Watch/Warning Graphic, available at hurricanes.gov. This is a life threatening situation. Persons located within these areas should take all necessary actions to protect life and property from rising water and the potential for other dangerous conditions. Promptly follow evacuation and other instructions from local officials. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area. Interests elsewhere in the northeastern U.S. should monitor the progress of Henri. For storm information specific to your area, including possible inland watches and warnings, please monitor products issued by your local National Weather Service forecast office.

Key messages for Henri can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT3, WMO header WTNT43 KNHC and on the web at www.hurricanes.gov/graphics_at3.shtml?key_messages.

STORM SURGE: The combination of a dangerous storm surge and the tide will cause normally dry areas near the coast to be flooded by rising waters moving inland from the shoreline. The water could reach the following heights above ground somewhere in the indicated areas if the peak surge occurs at the time of high tide... Flushing, NY to Chatham, MA including Narragansett Bay, Buzzards Bay, Vineyard Sound, and Nantucket Sound...2 4 ft North shore of Long Island from Flushing, NY to Montauk Point, NY including Long Island Sound...2 4 ft South shore of Long Island from Mastic Beach to Montauk Point, NY...2 4 ft Chatham, MA to Merrimack River, MA including Cape Cod Bay and Massachusetts Bay...1 2 ft East Rockaway Inlet, NY to Mastic Beach, NY...1 2 ft Recent reports from an amateur radio operator in Newport, Rhode Island, indicate that storm surge inundation near 1 ft has occurred, with water reported in the streets in some areas of the city. The deepest water will occur along the immediate coast in areas of onshore winds, where the surge will be accompanied by large and dangerous waves. Surge related flooding depends on the relative timing of the surge and the tidal cycle, and can vary greatly over short distances. For information specific to your area, please see products issued by your local National Weather Service forecast office.

WIND: Tropical storm conditions are expected to continue in the tropical storm warning area into tonight. Some tree and power line damage has already been reported across southern Rhode Island.

RAINFALL: Henri is expected to produce rainfall amounts of 3 to 6 inches over portions of Long Island, New England, southeast New York, New Jersey, and northeast Pennsylvania Sunday into Monday, with isolated maximum totals near 12 inches. Heavy rainfall from Henri may result in considerable flash, urban, and small stream flooding, along with the potential for widespread minor to isolated moderate river flooding.

TORNADOES: The risk for a tornado or two continues today across parts of southern New England.

SURF: Swells generated by Henri should diminish around Bermuda later today. Swells are expected to increase across much of the east coast of the U.S. and Atlantic Canada today and continue into Monday. These swells could cause life threatening surf and rip current conditions. Please consult products from your local weather office.

At 1100 AM EDT (1500 UTC), the center of Tropical Storm Henri was located by an Air Force Reserve reconnaissance aircraft and NOAA Doppler weather radars near latitude 41.1 North, longitude 71.6 West. Henri is moving toward the north northwest near 12 mph (19 km/h). A north northwestward motion with a decrease in forward speed is expected for the next few hours, followed by a turn toward the northwest this afternoon. The center of Henri is currently passing near Block Island and on the forecast track the center is expected to make landfall in Rhode Island by early afternoon. Henri is forecast to slow down and possibly stall near the Connecticut New York border tonight, followed by an east northeastward motion across northern Connecticut and southern Massachusetts on Monday.

Data from the aircraft, Doppler radars, and surface observations indicate that maximum sustained winds have decreased to near 60 mph (95 km/h) with higher gusts. Little change in strength is expected until landfall occurs, followed by rapid weakening after Henri moves inland over southern New England. Tropical storm force winds extend outward up to 125 miles (205 km) from the center. A Weatherflow station on Block Island, Rhode Island, recently reported a sustained wind of 52 mph (84 km/h) and a gust to 65 mph (105 km/h). Another Weatherflow station near Point Judith, Rhode Island, recently measured a sustained wind of 51 mph (82 km/h) and a gust to 69 mph (111 km/h). The NOAA C MAN station at Buzzards Bay, Massachusetts, recently measured a sustained wind of 49 mph (79 km/h) and a gust to 57 mph (92 km/h), while an amateur radio operator in Westport, Massachusetts, recently reported a sustained wind of 41 mph (66 km/h) and a gust to 62 mph (100 km/h). The latest minimum central pressure estimated from Air Force Reserve reconnaissance aircraft data is 987 mb (29.15 inches).

Henri's presentation in both satellite and radar imagery has degraded significantly since the previous advisory due to the cyclone having moved over much cooler water. An eyewall feature is no longer evident and clouds tops have warmed markedly in the inner-core region around the center. Data from an Air Force Reserve reconnaissance aircraft, NOAA Doppler weather radars, and surface observations indicate that Henri's peak winds have decreased to 50 kt despite the central pressure remaining constant at about 987 mb.

Henri is moving north-northwestward or 335/10 kt. The cyclone is forecast to gradually turn northwestward later this afternoon and possibly even move westward before stalling near the New York-Connecticut border later tonight owing to interaction with a mid- to upper-level low located over he DelMarVa region. The latter system is expected to be absorbed by Henri by early Monday morning before ejecting out slowly eastward to east-northeastward across southern New England by Monday afternoon and evening. Henri is then forecast to cross the southern Gulf of Maine and Nova Scotia as a remnant low on Tuesday. The new NHC track forecast is a little to the west and south of the previous advisory track, and lies close to the tightly packed simple- and corrected-consensus track models.

Little change in strength is expected until Henri makes landfall in the Rhode Island-eastern Connecticut area this afternoon. After landfall, rapid weakening is forecast due to land interaction and entrainment of cooler air coming in off of the Atlantic Ocean. Henri should weaken to a tropical depression by early Monday, and become post-tropical by Monday afternoon or evening.

Due to the degraded radar presentation of Henri, hourly Tropical Cyclone Updates (TCU) will be discontinued after the 1100 AM EDT advisory.