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Hurricane Henri Public Advisory Number 26

2021-08-22 10:52:20| National Hurricane Center (Atlantic)

Issued at 500 AM EDT Sun Aug 22 2021 000 WTNT33 KNHC 220852 TCPAT3 BULLETIN Hurricane Henri Advisory Number 26 NWS National Hurricane Center Miami FL AL082021 500 AM EDT Sun Aug 22 2021 ...OUTER BANDS OF HENRI MOVING ONSHORE IN EASTERN LONG ISLAND AND SOUTHERN NEW ENGLAND... ...A DANGEROUS STORM SURGE, HURRICANE CONDITIONS, AND FLOODING RAINFALL ARE EXPECTED IN PORTIONS OF THE NORTHEAST UNITED STATES... SUMMARY OF 500 AM EDT...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...40.1N 71.2W ABOUT 80 MI...125 KM SSE OF MONTAUK POINT NEW YORK ABOUT 120 MI...190 KM S OF PROVIDENCE RHODE ISLAND MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/H PRESENT MOVEMENT...N OR 350 DEGREES AT 18 MPH...30 KM/H MINIMUM CENTRAL PRESSURE...986 MB...29.12 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. 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 Storm Surge Watch is in effect for... * East Rockaway Inlet to Mastic New York * North of Chatham Massachusetts to Sagamore Beach Massachusetts * Cape Cod Bay A Hurricane Warning is in effect for... * South shore of Long Island from Fire Island Inlet to Montauk Point * North shore of Long Island from Port Jefferson Harbor to Montauk Point * New Haven Connecticut to west of Westport Massachusetts * Block Island A Tropical Storm Warning is in effect for... * Port Jefferson Harbor to west of New Haven Connecticut * South shore of Long Island from west of Fire Island Inlet to East Rockaway Inlet * Westport Massachusetts to Chatham Massachusetts, including Martha's Vineyard and Nantucket * Coastal New York and New Jersey west of East Rockaway Inlet to Manasquan Inlet, including New York City 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 Hurricane Warning means that hurricane conditions are expected somewhere within the warning area. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area. A Storm Surge Watch means there is a possibility 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. 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. DISCUSSION AND OUTLOOK ---------------------- At 500 AM EDT (0900 UTC), the center of Hurricane Henri was located near latitude 40.1 North, longitude 71.2 West. Henri is moving toward the north near 18 mph (30 km/h). A decrease in forward speed and a turn toward the north-northwest is expected this morning. On the forecast track, Henri is expected to make landfall in southern New England or on Long Island late this morning or early this afternoon. After landfall, a turn to the north and a slower forward speed are expected as Henri moves over southern New England. Maximum sustained winds are near 75 mph (120 km/h) with higher gusts. Little change in strength is expected this morning, and Henri is forecast to be at or near hurricane strength when it reaches the coasts of southern New England and Long island. Rapid weakening is expected after Henri makes landfall. Hurricane-force winds extend outward up to 35 miles (55 km) from the center and tropical-storm-force winds extend outward up to 125 miles (205 km). The latest minimum central pressure estimated from Air Force Hurricane Hunter data is 986 mb (29.12 inches). HAZARDS AFFECTING LAND ---------------------- 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...3-5 ft North shore of Long Island from Flushing to Montauk Point, NY including Long Island Sound...3-5 ft South shore of Long Island from Mastic Beach to Montauk Point, NY...3-5 ft Chatham, MA to Sagamore Beach, MA including Cape Cod Bay...2-4 ft South shore of Long Island from East Rockaway Inlet to Mastic Beach, NY...2-4 ft Cape May, NJ to East Rockaway Inlet, NY...1-3 ft Sagamore Beach, MA to Merrimack River including Massachusetts Bay...1-3 ft 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: Hurricane conditions are expected in the hurricane warning area today, with tropical storm conditions beginning within the next hour or two. Tropical storm conditions are expected in the tropical storm warning area beginning this morning and continuing into tonight. 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 today into Monday, with isolated maximum totals near 10 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: A tornado or two may occur today over southern New England. SURF: Swells generated by Henri should continue to affect Bermuda 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. NEXT ADVISORY ------------- Next intermediate advisory at 800 AM EDT. Next complete advisory at 1100 AM EDT. $$ Forecaster Brown

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Hurricane Henri Forecast Advisory Number 26

2021-08-22 10:52:20| National Hurricane Center (Atlantic)

Issued at 0900 UTC SUN AUG 22 2021 000 WTNT23 KNHC 220852 TCMAT3 HURRICANE HENRI FORECAST/ADVISORY NUMBER 26 NWS NATIONAL HURRICANE CENTER MIAMI FL AL082021 0900 UTC SUN AUG 22 2021 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... NONE. 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 STORM SURGE WATCH IS IN EFFECT FOR... * EAST ROCKAWAY INLET TO MASTIC NEW YORK * NORTH OF CHATHAM MASSACHUSETTS TO SAGAMORE BEACH MASSACHUSETTS * CAPE COD BAY A HURRICANE WARNING IS IN EFFECT FOR... * SOUTH SHORE OF LONG ISLAND FROM FIRE ISLAND INLET TO MONTAUK POINT * NORTH SHORE OF LONG ISLAND FROM PORT JEFFERSON HARBOR TO MONTAUK POINT * NEW HAVEN CONNECTICUT TO WEST OF WESTPORT MASSACHUSETTS * BLOCK ISLAND A TROPICAL STORM WARNING IS IN EFFECT FOR... * PORT JEFFERSON HARBOR TO WEST OF NEW HAVEN CONNECTICUT * SOUTH SHORE OF LONG ISLAND FROM WEST OF FIRE ISLAND INLET TO EAST ROCKAWAY INLET * WESTPORT MASSACHUSETTS TO CHATHAM MASSACHUSETTS...INCLUDING MARTHA'S VINEYARD AND NANTUCKET * COASTAL NEW YORK AND NEW JERSEY WEST OF EAST ROCKAWAY INLET TO MANASQUAN INLET...INCLUDING NEW YORK CITY 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 HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA. A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA. A STORM SURGE WATCH MEANS THERE IS A POSSIBILITY 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. INTERESTS ELSEWHERE IN THE NORTHEASTERN U.S. SHOULD MONITOR THE PROGRESS OF HENRI. HURRICANE CENTER LOCATED NEAR 40.1N 71.2W AT 22/0900Z POSITION ACCURATE WITHIN 20 NM PRESENT MOVEMENT TOWARD THE NORTH OR 350 DEGREES AT 16 KT ESTIMATED MINIMUM CENTRAL PRESSURE 986 MB MAX SUSTAINED WINDS 65 KT WITH GUSTS TO 80 KT. 64 KT....... 0NE 30SE 0SW 0NW. 50 KT....... 50NE 70SE 0SW 0NW. 34 KT....... 80NE 110SE 80SW 40NW. 12 FT SEAS..150NE 270SE 120SW 60NW. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 40.1N 71.2W AT 22/0900Z AT 22/0600Z CENTER WAS LOCATED NEAR 39.4N 71.0W FORECAST VALID 22/1800Z 41.5N 71.7W...INLAND MAX WIND 60 KT...GUSTS 75 KT. 50 KT... 30NE 60SE 20SW 0NW. 34 KT... 70NE 100SE 70SW 40NW. FORECAST VALID 23/0600Z 42.7N 72.4W...INLAND MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 23/1800Z 43.5N 72.3W...POST-TROP/INLAND MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 24/0600Z 43.8N 70.5W...POST-TROP/INLAND MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 24/1800Z 44.2N 67.3W...POST-TROPICAL MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 25/0600Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 40.1N 71.2W INTERMEDIATE PUBLIC ADVISORY...WTNT33 KNHC/MIATCPAT3...AT 22/1200Z NEXT ADVISORY AT 22/1500Z $$ FORECASTER BROWN

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Summary for Hurricane Henri (AT3/AL082021)

2021-08-22 07:52:47| National Hurricane Center (Atlantic)

...HENRI HEADING TOWARD SOUTHERN NEW ENGLAND AND LONG ISLAND... ...A DANGEROUS STORM SURGE, HURRICANE CONDITIONS, AND FLOODING RAINFALL ARE EXPECTED IN PORTIONS OF THE NORTHEAST UNITED STATES BEGINNING THIS MORNING... As of 2:00 AM EDT Sun Aug 22 the center of Henri was located near 39.3, -71.0 with movement N at 21 mph. The minimum central pressure was 987 mb with maximum sustained winds of about 75 mph.

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Hurricane Henri Public Advisory Number 25A

2021-08-22 07:52:47| National Hurricane Center (Atlantic)

Issued at 200 AM EDT Sun Aug 22 2021 000 WTNT33 KNHC 220552 TCPAT3 BULLETIN Hurricane Henri Intermediate Advisory Number 25A NWS National Hurricane Center Miami FL AL082021 200 AM EDT Sun Aug 22 2021 ...HENRI HEADING TOWARD SOUTHERN NEW ENGLAND AND LONG ISLAND... ...A DANGEROUS STORM SURGE, HURRICANE CONDITIONS, AND FLOODING RAINFALL ARE EXPECTED IN PORTIONS OF THE NORTHEAST UNITED STATES BEGINNING THIS MORNING... SUMMARY OF 200 AM EDT...0600 UTC...INFORMATION ---------------------------------------------- LOCATION...39.3N 71.0W ABOUT 135 MI...215 KM SSE OF MONTAUK POINT NEW YORK ABOUT 175 MI...280 KM S OF PROVIDENCE RHODE ISLAND MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/H PRESENT MOVEMENT...N OR 355 DEGREES AT 21 MPH...33 KM/H MINIMUM CENTRAL PRESSURE...987 MB...29.15 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. 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 Storm Surge Watch is in effect for... * East Rockaway Inlet to Mastic New York * North of Chatham Massachusetts to Sagamore Beach Massachusetts * Cape Cod Bay A Hurricane Warning is in effect for... * South shore of Long Island from Fire Island Inlet to Montauk Point * North shore of Long Island from Port Jefferson Harbor to Montauk Point * New Haven Connecticut to west of Westport Massachusetts * Block Island A Tropical Storm Warning is in effect for... * Port Jefferson Harbor to west of New Haven Connecticut * South shore of Long Island from west of Fire Island Inlet to East Rockaway Inlet * Westport Massachusetts to Chatham Massachusetts, including Martha's Vineyard and Nantucket * Coastal New York and New Jersey west of East Rockaway Inlet to Manasquan Inlet, including New York City 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 Hurricane Warning means that hurricane conditions are expected somewhere within the warning area, in this case beginning within the next 12 hours. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area. A Storm Surge Watch means there is a possibility of life- threatening inundation, from rising water moving inland from the coastline, in this case beginning within the next 12 hours. For a depiction of areas at risk, please see the National Weather Service Storm Surge Watch/Warning Graphic, available at hurricanes.gov. 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. DISCUSSION AND OUTLOOK ---------------------- At 200 AM EDT (0600 UTC), the center of Hurricane Henri was located near latitude 39.3 North, longitude 71.0 West. Henri is moving toward the north near 21 mph (33 km/h). A decrease in forward speed and a turn toward the north-northwest is expected later this morning. On the forecast track, Henri is expected to make landfall in southern New England or on Long Island today. After landfall, a turn to the north and a slower forward speed are expected as Henri moves over southern New England. Reports from Air Force Reserve Hurricane Hunter aircraft indicate that maximum sustained winds are near 75 mph (120 km/h) with higher gusts. Slight strengthening is possible early this morning. Weakening is expected to begin later today. However, Henri is expected to be at or near hurricane strength when it reaches the coasts of southern New England and Long island. Rapid weakening is expected after Henri makes landfall. Hurricane-force winds extend outward up to 35 miles (55 km) from the center and tropical-storm-force winds extend outward up to 150 miles (240 km). The latest minimum central pressure estimated from data from an Air Force Reserve Hurricane Hunter aircraft is 987 mb (29.15 inches). HAZARDS AFFECTING LAND ---------------------- 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...3-5 ft North shore of Long Island from Flushing to Montauk Point, NY including Long Island Sound...3-5 ft South shore of Long Island from Mastic Beach to Montauk Point, NY...3-5 ft Chatham, MA to Sagamore Beach, MA including Cape Cod Bay...2-4 ft South shore of Long Island from East Rockaway Inlet to Mastic Beach, NY...2-4 ft Cape May, NJ to East Rockaway Inlet, NY...1-3 ft Sagamore Beach, MA to Merrimack River including Massachusetts Bay...1-3 ft 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: Hurricane conditions are expected in the hurricane warning area today, with tropical storm conditions beginning within the next few hours. Tropical storm conditions are expected in the tropical storm warning area beginning this morning and continuing into tonight. RAINFALL: Henri is expected to produce rainfall amounts of 3 to 6 inches over portions of Long Island, New England, southeast New York, and New Jersey today into Monday, with isolated maximum totals near 10 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: A tornado or two may occur today over southern New England. SURF: Swells generated by Henri should continue to affect Bermuda 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. NEXT ADVISORY ------------- Next complete advisory at 500 AM EDT. $$ Forecaster Brown/Latto

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