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#453403 (Received by flhurricane at: 10:55 PM 25.Aug.2011) TCMAT4 HURRICANE IRENE FORECAST/ADVISORY NUMBER 23 NWS NATIONAL HURRICANE CENTER MIAMI FL AL092011 0300 UTC FRI AUG 26 2011 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... THE GOVERNMENT OF THE BAHAMAS HAS DISCONTINUED THE HURRICANE WARNING FOR THE NORTHWESTERN BAHAMAS EXCEPT FOR GRAND BAHAMA AND THE ABACO ISLANDS. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A HURRICANE WARNING IS IN EFFECT FOR... * THE GRAND BAHAMA AND THE ABACO ISLANDS * THE COAST OF NORTH CAROLINA FROM LITTLE RIVER INLET NORTHWARD TO THE VIRGINIA BORDER...INCLUDING THE PAMLICO...ALBEMARLE...AND CURRITUCK SOUNDS A HURRICANE WATCH IS IN EFFECT FOR... * THE VIRGINIA/NORTH CAROLINA BORDER NORTHWARD TO SANDY HOOK NEW JERSEY...INCLUDING DELAWARE BAY...AND CHESAPEAKE BAY SOUTH OF SMITH POINT A TROPICAL STORM WARNING IS IN EFFECT FOR... * NORTH OF EDISTO BEACH SOUTH CAROLINA TO LITTLE RIVER INLET A TROPICAL STORM WATCH IS IN EFFECT FOR... * 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. A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 HOURS. INTERESTS ELSEWHERE IN THE MID-ATLANTIC STATES AND NEW ENGLAND SHOULD MONITOR THE PROGRESS OF IRENE. HURRICANE CENTER LOCATED NEAR 28.3N 77.3W AT 26/0300Z POSITION ACCURATE WITHIN 15 NM PRESENT MOVEMENT TOWARD THE NORTH OR 350 DEGREES AT 12 KT ESTIMATED MINIMUM CENTRAL PRESSURE 942 MB EYE DIAMETER 25 NM MAX SUSTAINED WINDS 100 KT WITH GUSTS TO 120 KT. 64 KT....... 70NE 60SE 25SW 50NW. 50 KT.......110NE 100SE 50SW 75NW. 34 KT.......250NE 200SE 125SW 160NW. 12 FT SEAS..330NE 300SE 120SW 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 28.3N 77.3W AT 26/0300Z AT 26/0000Z CENTER WAS LOCATED NEAR 27.7N 77.4W FORECAST VALID 26/1200Z 30.0N 77.8W MAX WIND 105 KT...GUSTS 130 KT. 64 KT... 70NE 60SE 25SW 50NW. 50 KT...110NE 100SE 50SW 75NW. 34 KT...250NE 200SE 125SW 160NW. FORECAST VALID 27/0000Z 31.8N 77.6W MAX WIND 110 KT...GUSTS 135 KT. 64 KT... 70NE 60SE 25SW 50NW. 50 KT...110NE 100SE 50SW 75NW. 34 KT...250NE 200SE 125SW 160NW. FORECAST VALID 27/1200Z 33.7N 77.1W MAX WIND 105 KT...GUSTS 130 KT. 64 KT... 70NE 60SE 25SW 50NW. 50 KT...110NE 100SE 50SW 75NW. 34 KT...250NE 200SE 125SW 160NW. FORECAST VALID 28/0000Z 36.0N 76.3W MAX WIND 90 KT...GUSTS 110 KT. 50 KT...120NE 120SE 60SW 75NW. 34 KT...270NE 240SE 140SW 120NW. FORECAST VALID 29/0000Z 42.0N 73.0W...INLAND MAX WIND 70 KT...GUSTS 85 KT. 50 KT...120NE 120SE 60SW 75NW. 34 KT...270NE 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 30/0000Z 51.0N 66.0W...POST-TROP/EXTRATROP MAX WIND 40 KT...GUSTS 50 KT. OUTLOOK VALID 31/0000Z 58.0N 50.0W...POST-TROP/EXTRATROP MAX WIND 40 KT...GUSTS 50 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 28.3N 77.3W NEXT ADVISORY AT 26/0900Z $$ FORECASTER AVILA |