Sandy Becomes Post-Tropical Cyclone

By: 4Warn Weather Team/National Hurricane Center
By: 4Warn Weather Team/National Hurricane Center

SANDY BECOMES POST-TROPICAL...CENTER EXPECTED TO MAKE LANDFALL WITHIN THE NEXT HOUR OR SO

SUMMARY OF 700 PM EDT...2300 UTC...INFORMATION
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LOCATION...39.1N 74.4W
ABOUT 30 MI...50 KM ENE OF CAPE MAY NEW JERSEY
ABOUT 20 MI...35 KM S OF ATLANTIC CITY NEW JERSEY
MAXIMUM SUSTAINED WINDS...85 MPH...140 KM/H
PRESENT MOVEMENT...WNW OR 300 DEGREES AT 28 MPH...44 KM/H
MINIMUM CENTRAL PRESSURE...946 MB...27.93 INCHES

AS INDICATED IN THE 5 PM DISCUSSION ...SATELLITE...RADAR...AND AIRCRAFT DATA INDICATE THAT SANDY HAS CONTINUED TO LOSE TROPICAL CHARACTERISTICS. NHC IS NOW DESIGNATING SANDY AS A POST-TROPICAL CYCLONE. IN ADDITION...THE MAXIMUM WINDS HAVE DECREASED SLIGHTLY
AND ARE NOW NEAR 85 MPH...140 KM/H.

NATIONAL OCEAN SERVICE TIDE GAUGES HAVE RECENTLY REPORTED STORM SURGE HEIGHTS OF 12.4 FEET AT KINGS POINT NEW YORK...AND 7.2 FEET AT THE BATTERY NEW YORK...AND 7.5 FEET AT SANDY HOOK NEW JERSEY.
TOTAL WATER LEVELS WILL BE EVEN HIGHER WHEN HIGH TIDE OCCURS.

A WIND GUST TO 82 MPH WAS RECENTLY REPORTED AT ISLIP NEW YORK. A SUSTAINED WIND OF 45 MPH WITH A GUST TO 67 MPH WAS RECENTLY REPORTED AT JFK INTERNATIONAL AIRPORT IN NEW YORK.

ANOTHER UPDATE WILL BE ISSUED AT THE TIME OF LANDFALL AND AT 900 PM EDT. NHC WILL ISSUE ITS LAST ADVISORY ON SANDY AT 1100 PM EDT. THE HYDROMETEOROLOGICAL PREDICTION CENTER...HPC...WILL BEGIN ISSUING
PUBLIC ADVISORIES AT 500 AM EDT TUESDAY. HPC PUBLIC ADVISORIES WILL BE ISSUED UNDER THE SAME WMO AND AWIPS HEADERS AS THE NHC PUBLIC ADVISORIES...AND WILL ALSO BE AVAILABLE VIA THE NHC WEBSITE.


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