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TROPICAL STORM HENRI FORECAST/ADVISORY NUMBER  21
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL082021
0300 UTC SAT AUG 21 2021
 
CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...
 
THE STORM SURGE WATCH HAS BEEN UPGRADED TO A WARNING BETWEEN
GREENWICH CT TO FLUSHING NY AND FLUSHING TO OYSTER BAY NY.
 
A TROPICAL STORM WARNING IS NOW IN EFFECT FROM WATCH HILL RHODE
ISLAND EAST TO WOODS HOLE MASSACHUSETTS INCLUDING BLOCK
ISLAND AND MARTHA'S VINEYARD.  A TROPICAL STORM WARNING IS ALSO IN
EFFECT WEST OF EAST ROCKAWAY INLET NEW YORK TO MANASQUAN INLET NEW 
JERSEY...INCLUDING NEW YORK CITY.
 
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 WATCH HILL RHODE ISLAND
 
A HURRICANE WATCH IS IN EFFECT FOR...
* WATCH HILL RHODE ISLAND TO SAGAMORE BEACH MASSACHUSETTS
* NANTUCKET...MARTHA'S VINEYARD...AND 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
* WATCH HILL RHODE ISLAND TO WOODS HOLE MASSACHUSETTS INCLUDING
BLOCK ISLAND AND MARTHA'S VINEYARD.
* 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...DURING THE NEXT 36 HOURS IN THE INDICATED LOCATIONS.
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 WARNING IS TYPICALLY ISSUED
36 HOURS BEFORE THE ANTICIPATED FIRST OCCURRENCE OF TROPICAL-STORM-
FORCE WINDS...CONDITIONS THAT MAKE OUTSIDE PREPARATIONS DIFFICULT OR
DANGEROUS.  PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE
RUSHED TO COMPLETION.
 
A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED SOMEWHERE WITHIN THE WARNING AREA WITHIN 36 HOURS.
 
A STORM SURGE WATCH MEANS THERE IS A POSSIBILITY OF LIFE-
THREATENING INUNDATION...FROM RISING WATER MOVING INLAND FROM THE
COASTLINE...IN THE INDICATED LOCATIONS DURING THE NEXT 48 HOURS.
FOR A DEPICTION OF AREAS AT RISK...PLEASE SEE THE NATIONAL WEATHER
SERVICE STORM SURGE WATCH/WARNING GRAPHIC...AVAILABLE AT
HURRICANES.GOV.
 
A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE
WITHIN THE WATCH AREA.  A WATCH IS TYPICALLY ISSUED 48 HOURS
BEFORE THE ANTICIPATED FIRST OCCURRENCE OF TROPICAL-STORM-FORCE
WINDS...CONDITIONS THAT MAKE OUTSIDE PREPARATIONS DIFFICULT OR
DANGEROUS.
 
INTERESTS ELSEWHERE IN THE NORTHEASTERN U.S. AND ATLANTIC CANADA
SHOULD MONITOR THE PROGRESS OF HENRI.  ADDITIONAL WATCHES OR
WARNINGS MAY BE REQUIRED ON SATURDAY SATURDAY.
 
TROPICAL STORM CENTER LOCATED NEAR 32.3N  73.5W AT 21/0300Z
POSITION ACCURATE WITHIN  25 NM
 
PRESENT MOVEMENT TOWARD THE NORTH OR  10 DEGREES AT   8 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  994 MB
MAX SUSTAINED WINDS  60 KT WITH GUSTS TO  75 KT.
50 KT....... 50NE  50SE   0SW   0NW.
34 KT....... 90NE 100SE  50SW  70NW.
12 FT SEAS..180NE 120SE  60SW 150NW.
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 32.3N  73.5W AT 21/0300Z
AT 21/0000Z CENTER WAS LOCATED NEAR 31.6N  73.7W
 
FORECAST VALID 21/1200Z 34.3N  72.8W
MAX WIND  65 KT...GUSTS  80 KT.
64 KT... 20NE  25SE   0SW   0NW.
50 KT... 50NE  50SE   0SW   0NW.
34 KT...100NE 110SE  90SW  50NW.
 
FORECAST VALID 22/0000Z 37.7N  72.1W
MAX WIND  75 KT...GUSTS  90 KT.
64 KT... 20NE  25SE   0SW   0NW.
50 KT... 50NE  60SE  20SW  20NW.
34 KT...110NE 130SE 100SW  50NW.
 
FORECAST VALID 22/1200Z 40.2N  72.6W
MAX WIND  70 KT...GUSTS  85 KT.
64 KT... 20NE  25SE  10SW   0NW.
50 KT... 50NE  60SE  30SW  20NW.
34 KT...100NE 130SE  90SW  60NW.
 
FORECAST VALID 23/0000Z 41.4N  73.4W...INLAND
MAX WIND  50 KT...GUSTS  60 KT.
50 KT... 20NE  20SE   0SW   0NW.
34 KT... 70NE 100SE  70SW  60NW.
 
FORECAST VALID 23/1200Z 42.2N  73.2W...INLAND
MAX WIND  35 KT...GUSTS  45 KT.
34 KT... 30NE  80SE  30SW   0NW.
 
FORECAST VALID 24/0000Z 42.7N  72.3W...POST-TROP/INLAND
MAX WIND  30 KT...GUSTS  40 KT.
 
EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM
ON DAY 4 AND 175 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY
 
OUTLOOK VALID 25/0000Z 43.5N  67.0W...POST-TROPICAL
MAX WIND  25 KT...GUSTS  35 KT.
 
OUTLOOK VALID 26/0000Z...DISSIPATED
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 32.3N  73.5W
 
INTERMEDIATE PUBLIC ADVISORY...WTNT33 KNHC/MIATCPAT3...AT 21/0600Z
 
NEXT ADVISORY AT 21/0900Z
 
$$
FORECASTER BEVEN
 
 
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