Hurricane Sandy

Forecast Advisory 21

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696
WTNT23 KNHC 271458
TCMAT3

HURRICANE SANDY FORECAST/ADVISORY NUMBER 21
NWS NATIONAL HURRICANE CENTER MIAMI FL AL182012
1500 UTC SAT OCT 27 2012

CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...

ALL TROPICAL STORM WATCHES AND WARNINGS ALONG THE EAST COAST OF
FLORIDA HAVE BEEN DISCONTINUED.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* SOUTH SANTEE RIVER TO DUCK...INCLUDING PAMLICO
AND ALBEMARLE SOUNDS
* GREAT ABACO AND GRAND BAHAMA ISLANDS

A TROPICAL STORM WATCH IS IN EFFECT FOR...
* SAVANNAH RIVER TO SOUTH SANTEE RIVER
* BERMUDA

IN ADDITION...GALE...STORM AND HIGH WIND WATCHES AND WARNINGS ARE IN
EFFECT FOR AREAS NORTH OF THE TROPICAL STORM WARNING AREAS. SEE
STATEMENTS FROM LOCAL NATIONAL WEATHER SERVICE FORECAST OFFICES.

INTERESTS THROUGHOUT THE MID-ATLANTIC STATES AND NEW ENGLAND SHOULD
MONITOR THE PROGRESS OF SANDY.

A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED SOMEWHERE WITHIN THE WARNING AREA.

A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE
POSSIBLE WITHIN THE WATCH AREA.

HURRICANE CENTER LOCATED NEAR 29.0N 76.0W AT 27/1500Z
POSITION ACCURATE WITHIN 25 NM

PRESENT MOVEMENT TOWARD THE NORTH-NORTHEAST OR 30 DEGREES AT 8 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 958 MB
MAX SUSTAINED WINDS 65 KT WITH GUSTS TO 80 KT.
64 KT....... 0NE 0SE 90SW 0NW.
50 KT....... 30NE 30SE 130SW 130NW.
34 KT.......390NE 200SE 190SW 280NW.
12 FT SEAS..575NE 600SE 270SW 330NW.
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 29.0N 76.0W AT 27/1500Z
AT 27/1200Z CENTER WAS LOCATED NEAR 28.8N 76.8W

FORECAST VALID 28/0000Z 30.4N 75.0W
MAX WIND 65 KT...GUSTS 80 KT.
64 KT... 0NE 0SE 90SW 90NW.
50 KT... 60NE 100SE 150SW 150NW.
34 KT...390NE 270SE 240SW 280NW.

FORECAST VALID 28/1200Z 32.2N 73.4W
MAX WIND 65 KT...GUSTS 80 KT.
64 KT... 0NE 0SE 90SW 90NW.
50 KT... 70NE 120SE 150SW 160NW.
34 KT...360NE 300SE 300SW 280NW.

FORECAST VALID 29/0000Z 34.2N 72.1W
MAX WIND 65 KT...GUSTS 80 KT.
64 KT... 0NE 70SE 90SW 90NW.
50 KT...100NE 150SE 170SW 170NW.
34 KT...360NE 330SE 300SW 330NW.

FORECAST VALID 29/1200Z 36.4N 72.0W
MAX WIND 70 KT...GUSTS 85 KT.
50 KT...120NE 160SE 180SW 180NW.
34 KT...360NE 360SE 330SW 330NW.

FORECAST VALID 30/1200Z 39.8N 77.0W...POST-TROP/EXTRATROP
MAX WIND 55 KT...GUSTS 65 KT.
50 KT...200NE 200SE 0SW 0NW.
34 KT...360NE 360SE 120SW 30NW.

EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 175 NM
ON DAY 4 AND 225 NM ON DAY 5...AND FOR INTENSITY NEAR 20 KT EACH DAY

OUTLOOK VALID 31/1200Z 40.8N 77.5W...POST-TROP/EXTRATROP
MAX WIND 40 KT...GUSTS 50 KT.

OUTLOOK VALID 01/1200Z 43.8N 76.8W...POST-TROP/EXTRATROP
MAX WIND 35 KT...GUSTS 45 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 29.0N 76.0W

NEXT ADVISORY AT 27/2100Z

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FORECASTER BROWN