Hurricane Irene

Forecast Advisory 28

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043
WTNT24 KNHC 270856
TCMAT4

HURRICANE IRENE FORECAST/ADVISORY NUMBER 28
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092011
0900 UTC SAT AUG 27 2011

CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...

THE TROPICAL STORM WARNING HAS BEEN DISCONTINUED FOR THE SOUTH
CAROLINA COAST SOUTH OF THE SOUTH SANTEE RIVER.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A HURRICANE WARNING IS IN EFFECT FOR...
* LITTLE RIVER INLET NORTH CAROLINA NORTHWARD TO SAGAMORE BEACH
MASSACHUSETTS...INCLUDING THE PAMLICO...ALBEMARLE...AND CURRITUCK
SOUNDS...DELAWARE BAY...CHESAPEAKE BAY SOUTH OF DRUM POINT...NEW
YORK CITY...LONG ISLAND...LONG ISLAND SOUND...COASTAL CONNECTICUT
AND RHODE ISLAND...BLOCK ISLAND...MARTHAS VINEYARD AND NANTUCKET

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* SOUTH SANTEE RIVER SOUTH CAROLINA TO LITTLE RIVER INLET
* CHESAPEAKE BAY FROM DRUM POINT NORTHWARD AND THE TIDAL POTOMAC
* NORTH OF SAGAMORE BEACH TO MERRIMACK RIVER

A TROPICAL STORM WATCH IS IN EFFECT FOR...
* MERRIMACK RIVER TO EASTPORT MAINE

INTERESTS IN SOUTHEASTERN CANADA SHOULD MONITOR THE PROGRESS OF
IRENE.

HURRICANE CENTER LOCATED NEAR 34.1N 76.5W AT 27/0900Z
POSITION ACCURATE WITHIN 15 NM

PRESENT MOVEMENT TOWARD THE NORTH-NORTHEAST OR 20 DEGREES AT 12 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 952 MB
MAX SUSTAINED WINDS 80 KT WITH GUSTS TO 100 KT.
64 KT....... 80NE 80SE 40SW 40NW.
50 KT.......125NE 125SE 90SW 75NW.
34 KT.......225NE 225SE 140SW 140NW.
12 FT SEAS..360NE 360SE 320SW 170NW.
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 34.1N 76.5W AT 27/0900Z
AT 27/0600Z CENTER WAS LOCATED NEAR 33.4N 76.6W

FORECAST VALID 27/1800Z 35.7N 75.8W...INLAND
MAX WIND 75 KT...GUSTS 90 KT.
64 KT... 80NE 80SE 40SW 40NW.
50 KT...125NE 125SE 90SW 75NW.
34 KT...225NE 225SE 140SW 140NW.

FORECAST VALID 28/0600Z 38.4N 74.6W...OVER WATER
MAX WIND 70 KT...GUSTS 85 KT.
64 KT... 80NE 80SE 40SW 40NW.
50 KT...125NE 125SE 90SW 75NW.
34 KT...225NE 225SE 140SW 140NW.

FORECAST VALID 28/1800Z 41.9N 72.7W...INLAND
MAX WIND 65 KT...GUSTS 80 KT.
64 KT... 40NE 75SE 40SW 40NW.
50 KT...100NE 100SE 60SW 60NW.
34 KT...225NE 225SE 140SW 125NW.

FORECAST VALID 29/0600Z 46.3N 69.6W...INLAND POST-TROP/EXTRATROP
MAX WIND 50 KT...GUSTS 60 KT.
50 KT... 60NE 60SE 0SW 0NW.
34 KT...210NE 210SE 70SW 125NW.

FORECAST VALID 30/0600Z 54.0N 59.0W...INLAND POST-TROP/EXTRATROP
MAX WIND 40 KT...GUSTS 50 KT.
34 KT...210NE 210SE 0SW 180NW.

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 57.0N 41.0W...POST-TROP/EXTRATROP
MAX WIND 40 KT...GUSTS 50 KT.

OUTLOOK VALID 01/0600Z 58.0N 23.0W...POST-TROP/EXTRATROP
MAX WIND 35 KT...GUSTS 45 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 34.1N 76.5W

NEXT ADVISORY AT 27/1500Z

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FORECASTER BEVEN