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Post-Tropical Cyclone SANDY


ZCZC MIATCDAT3 ALL
TTAA00 KNHC DDHHMM
 
POST-TROPICAL CYCLONE SANDY DISCUSSION NUMBER  31
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL182012
1100 PM EDT MON OCT 29 2012
 
SATELLITE...RADAR...SURFACE...AND RECONNAISSANCE AIRCRAFT DATA
INDICATE THAT SANDY MADE LANDFALL NEAR ATLANTIC CITY NEW JERSEY
AROUND 0000 UTC.  THE INTENSITY OF THE POST-TROPICAL CYCLONE WAS
ESTIMATED TO BE NEAR 80 KT AT LANDFALL WITH A MINIMUM PRESSURE OF
946 MB.  AT LANDFALL...THE STRONGEST WINDS WERE OCCURRING OVER
WATER TO THE EAST AND SOUTHEAST OF THE CENTER.  HURRICANE-FORCE
WINDS GUSTS HAVE BEEN REPORTED ACROSS LONG ISLAND AND THE NEW YORK
METROPOLITAN AREA THIS EVENING.  IN ADDITION...A SIGNIFICANT STORM
SURGE HAS OCCURRED ALONG A LONG STRETCH OF THE MID-ATLANTIC AND
SOUTHERN NEW ENGLAND COAST.
 
ALTHOUGH THE CYCLONE SHOULD STEADILY WEAKEN AS IT MOVES FURTHER
INLAND....CONDITIONS WILL BE SLOW TO IMPROVE AS STRONG WINDS AND
ELEVATED WATER LEVELS WILL PERSIST ALONG THE COAST FOR ANOTHER DAY
OR SO.  HEAVY RAINS ARE ALSO EXPECTED TO CONTINUE OVER A LARGE
AREA OF THE NORTHEASTERN UNITED STATES...POSING A VERY
SIGNIFICANT INLAND FLOOD RISK.  SANDY TOOK A NORTHWARD JOG BEFORE
LANDFALL THIS EVENING AND HAS ALSO SLOWED DOWN.  THE POST-TROPICAL
CYCLONE IS EXPECTED TO SLOW DOWN FURTHER AND TURN NORTHWARD...THEN
NORTHEASTWARD OVER THE NEXT COUPLE OF DAYS.  THE NHC TRACK IS
SIMILAR TO THE PREVIOUS ADVISORY AND IS A BLEND OF THE ECMWF AND
GFS MODELS.
 
NOW THAT SANDY IS A POST-TROPICAL CYCLONE...THE NEXT PUBLIC
ADVISORY WILL BE ISSUED BY THE HYDROMETEOROLOGICAL PREDICTION
CENTER...HPC...AT 500 AM EDT TUESDAY.  THE PUBLIC ADVISORY WILL BE
ISSUED UNDER THE SAME WMO AND AWIPS HEADERS AS THE NHC PUBLIC
ADVISORIES...AND WILL ALSO BE AVAILABLE VIA THE NHC WEBSITE.
HIGH WIND WARNINGS ISSUED BY THE LOCAL NATIONAL WEATHER SERVICE
FORECAST OFFICES REMAIN IN EFFECT FOR A LARGE PORTION OF THE
MID-ATLANTIC AND NORTHEASTERN UNITED STATES.
 
THANKS GO OUT TO THE CREWS OF THE AIR FORCE RESERVE AND NOAA
HURRICANE HUNTERS FOR PROVIDING CRITICAL MEASUREMENTS IN AND AROUND
SANDY DURING THE LAST SEVEN DAYS.  THE NATIONAL HURRICANE CENTER
WOULD ALSO LIKE TO THANK THE LOCAL WEATHER SERVICE OFFICES ACROSS
THE COUNTRY THAT HAVE CONDUCTED SPECIAL RADIOSONDE RELEASES AS SANDY
APPROACHED THE COAST.
 

FORECAST POSITIONS AND MAX WINDS
 
INIT  30/0300Z 39.8N  75.4W   65 KT  75 MPH...POST-TROP/EXTRATROP
 12H  30/1200Z 40.5N  77.2W   55 KT  65 MPH...POST-TROP/EXTRATROP
 24H  31/0000Z 41.3N  78.3W   40 KT  45 MPH...POST-TROP/EXTRATROP
 36H  31/1200Z 42.6N  77.9W   30 KT  35 MPH...POST-TROP/EXTRATROP
 48H  01/0000Z 44.0N  76.9W   25 KT  30 MPH...POST-TROP/EXTRATROP
 72H  02/0000Z 46.5N  74.5W   25 KT  30 MPH...POST-TROP/EXTRATROP
 96H  03/0000Z 48.5N  70.5W   25 KT  30 MPH...POST-TROP/EXTRATROP
120H  04/0000Z...ABSORBED
 
$$
FORECASTER BROWN
 
NNNN


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Page last modified: Monday, 31-Dec-2012 12:09:56 UTC