Hurricane Sandy

Forecast Advisory 20

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537
WTNT23 KNHC 270843
TCMAT3

TROPICAL STORM SANDY FORECAST/ADVISORY NUMBER 20
NWS NATIONAL HURRICANE CENTER MIAMI FL AL182012
0900 UTC SAT OCT 27 2012

CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...

THE TROPICAL STORM WARNING HAS BEEN DISCONTINUED SOUTH OF SEBASTIAN
INLET FLORIDA.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* FLORIDA EAST COAST FROM SEBASTIAN INLET TO SAINT AUGUSTINE
* 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
* FLORIDA EAST COAST FROM NORTH OF SAINT AUGUSTINE TO
FERNANDINA BEACH
* BERMUDA

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

INTERESTS ELSEWHERE ALONG THE EAST COAST OF THE UNITED STATES 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.

TROPICAL STORM CENTER LOCATED NEAR 28.6N 76.7W AT 27/0900Z
POSITION ACCURATE WITHIN 30 NM

PRESENT MOVEMENT TOWARD THE NORTH-NORTHEAST OR 20 DEGREES AT 9 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 969 MB
MAX SUSTAINED WINDS 60 KT WITH GUSTS TO 75 KT.
50 KT....... 30NE 30SE 70SW 130NW.
34 KT.......390NE 200SE 170SW 280NW.
12 FT SEAS..510NE 600SE 300SW 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 28.6N 76.7W AT 27/0900Z
AT 27/0600Z CENTER WAS LOCATED NEAR 28.1N 76.9W

FORECAST VALID 27/1800Z 29.8N 75.8W
MAX WIND 60 KT...GUSTS 75 KT.
50 KT... 60NE 90SE 100SW 150NW.
34 KT...390NE 240SE 200SW 270NW.

FORECAST VALID 28/0600Z 31.4N 74.2W
MAX WIND 55 KT...GUSTS 65 KT.
50 KT... 70NE 120SE 150SW 170NW.
34 KT...360NE 270SE 270SW 270NW.

FORECAST VALID 28/1800Z 33.2N 72.5W
MAX WIND 60 KT...GUSTS 75 KT.
50 KT... 90NE 100SE 150SW 150NW.
34 KT...360NE 300SE 300SW 270NW.

FORECAST VALID 29/0600Z 35.7N 71.6W
MAX WIND 65 KT...GUSTS 80 KT.
50 KT...120NE 120SE 150SW 170NW.
34 KT...360NE 330SE 300SW 300NW.

FORECAST VALID 30/0600Z 40.0N 75.5W...POST-TROP/EXTRATROP
MAX WIND 60 KT...GUSTS 75 KT.
50 KT...150NE 150SE 0SW 0NW.
34 KT...360NE 300SE 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 31/0600Z 41.5N 77.5W...POST-TROP/EXTRATROP
MAX WIND 40 KT...GUSTS 50 KT.

OUTLOOK VALID 01/0600Z 43.5N 77.5W...POST-TROP/EXTRATROP
MAX WIND 35 KT...GUSTS 45 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 28.6N 76.7W

NEXT ADVISORY AT 27/1500Z

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FORECASTER BRENNAN