000 WTNT24 KNHC 260857 TCMAT4 HURRICANE IRENE FORECAST/ADVISORY NUMBER 24 NWS NATIONAL HURRICANE CENTER MIAMI FL AL092011 0900 UTC FRI AUG 26 2011 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... THE HURRICANE WATCH FROM THE NORTH CAROLINA/VIRGINIA BORDER TO SANDY HOOK NEW JERSEY...INCLUDING DELAWARE BAY AND CHESAPEAKE BAY SOUTH OF SMITH POINT IS CHANGED TO A HURRICANE WARNING. THE TROPICAL STORM WATCH FOR CHESAPEAKE BAY FROM SMITH POINT NORTHWARD AND THE TIDAL POTOMAC IS CHANGED TO A TROPICAL STORM WARNING. A HURRICANE WATCH HAS BEEN ISSUED FROM NORTH OF SANDY HOOK NEW JERSEY TO THE MOUTH OF THE MERRIMACK RIVER...INCLUDING LONG ISLAND...LONG ISLAND SOUND...BLOCK ISLAND...MARTHAS VINEYARD AND NANTUCKET. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A HURRICANE WARNING IS IN EFFECT FOR... * THE GRAND BAHAMA AND THE ABACO ISLANDS * LITTLE RIVER INLET NORTH CAROLINA NORTHWARD TO SANDY HOOK NEW JERSEY...INCLUDING THE PAMLICO...ALBEMARLE...AND CURRITUCK SOUNDS...DELAWARE BAY...AND CHESAPEAKE BAY SOUTH OF SMITH POINT. A HURRICANE WATCH IS IN EFFECT FOR... * NORTH OF SANDY HOOK TO THE MOUTH OF THE MERRIMACK RIVER... INCLUDING LONG ISLAND...LONG ISLAND SOUND...BLOCK ISLAND...MARTHAS VINEYARD AND NANTUCKET. A TROPICAL STORM WARNING IS IN EFFECT FOR... * NORTH OF EDISTO BEACH SOUTH CAROLINA TO LITTLE RIVER INLET * CHESAPEAKE BAY FROM SMITH POINT NORTHWARD AND THE TIDAL POTOMAC A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA. A WARNING IS TYPICALLY ISSUED 36 HOURS BEFORE THE ANTICIPATED FIRST OCCURRENCE OF TROPICAL-STORM-FORCE WINDS...CONDITIONS THAT MAKE OUTSIDE PREPARATIONS DIFFICULT OR DANGEROUS. PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE RUSHED TO COMPLETION. A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA WITHIN 36 HOURS. A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA. A WATCH IS TYPICALLY ISSUED 48 HOURS BEFORE THE ANTICIPATED FIRST OCCURRENCE OF TROPICAL-STORM-FORCE WINDS...CONDITIONS THAT MAKE OUTSIDE PREPARATIONS DIFFICULT OR DANGEROUS. INTERESTS ELSEWHERE IN NEW ENGLAND SHOULD MONITOR THE PROGRESS OF IRENE. HURRICANE CENTER LOCATED NEAR 29.3N 77.2W AT 26/0900Z POSITION ACCURATE WITHIN 15 NM PRESENT MOVEMENT TOWARD THE NORTH OR 360 DEGREES AT 12 KT ESTIMATED MINIMUM CENTRAL PRESSURE 942 MB EYE DIAMETER 20 NM MAX SUSTAINED WINDS 95 KT WITH GUSTS TO 115 KT. 64 KT....... 80NE 80SE 50SW 50NW. 50 KT.......125NE 105SE 75SW 75NW. 34 KT.......250NE 200SE 130SW 175NW. 12 FT SEAS..330NE 330SE 180SW 270NW. 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 29.3N 77.2W AT 26/0900Z AT 26/0600Z CENTER WAS LOCATED NEAR 28.7N 77.2W FORECAST VALID 26/1800Z 31.0N 77.2W MAX WIND 100 KT...GUSTS 120 KT. 64 KT... 80NE 80SE 50SW 50NW. 50 KT...125NE 105SE 75SW 75NW. 34 KT...250NE 200SE 130SW 175NW. FORECAST VALID 27/0600Z 33.1N 76.9W MAX WIND 100 KT...GUSTS 120 KT. 64 KT... 80NE 80SE 50SW 50NW. 50 KT...125NE 105SE 75SW 75NW. 34 KT...250NE 200SE 130SW 175NW. FORECAST VALID 27/1800Z 35.3N 76.1W MAX WIND 105 KT...GUSTS 130 KT. 64 KT... 80NE 80SE 50SW 50NW. 50 KT...125NE 105SE 75SW 75NW. 34 KT...250NE 200SE 130SW 175NW. FORECAST VALID 28/0600Z 37.8N 75.0W MAX WIND 85 KT...GUSTS 105 KT. 50 KT...120NE 120SE 75SW 60NW. 34 KT...270NE 240SE 140SW 120NW. FORECAST VALID 29/0600Z 45.0N 70.4W...INLAND MAX WIND 55 KT...GUSTS 65 KT. 50 KT...100NE 120SE 75SW 50NW. 34 KT...240NE 270SE 140SW 120NW. 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 30/0600Z 53.0N 61.0W...POST-TROP/EXTRATROP MAX WIND 40 KT...GUSTS 50 KT. OUTLOOK VALID 31/0600Z 58.5N 44.0W...POST-TROP/EXTRATROP MAX WIND 40 KT...GUSTS 50 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 29.3N 77.2W NEXT ADVISORY AT 26/1500Z $$ FORECASTER BEVEN