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| #537251 (Received by flhurricane at: 5:02 PM 26.Aug.2012) TCMAT4 TROPICAL STORM ISAAC FORECAST/ADVISORY NUMBER 23 NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012 2100 UTC SUN AUG 26 2012 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... THE GOVERNMENT OF THE BAHAMAS HAS DISCONTINUED THE TROPICAL STORM WARNING FOR THE NORTHWESTERN BAHAMAS. THE GOVERNMENT OF CUBA HAS DISCONTINUED ALL WATCHES AND WARNINGS. THE TROPICAL STORM WATCH FROM NORTH OF SEBASTIAN INLET TO FLAGLER BEACH IS DISCONTINUED. THE HURRICANE WARNING IS CHANGED TO A TROPICAL STORM WARNING FOR THE FLORIDA KEYS INCLUDING THE DRY TORTUGAS AND FLORIDA BAY. THE HURRICANE WARNING FOR THE WEST COAST OF FLORIDA FROM BONITA BEACH SOUTHWARD TO OCEAN REEF IS CHANGED TO A TROPICAL STORM WARNING. THE HURRICANE WATCH IS CHANGED TO A HURRICANE WARNING FOR THE NORTHERN GULF OF MEXICO COAST FROM EAST OF MORGAN CITY LOUSIANA TO DESTIN FLORIDA...INCLUDING METROPOLITAN NEW ORLEANS...LAKE PONTCHARTRAIN...AND LAKE MAUREPAS. THE TROPICAL STORM WARNING FROM SUWANNEE RIVER TO ANCLOTE KEY IS DISCONTINUED. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A HURRICANE WARNING IS IN EFFECT FOR... * EAST OF MORGAN CITY LOUISIANA TO DESTIN FLORIDA...INCLUDING METROPOLITAN NEW ORLEANS...LAKE PONTCHARTRAIN...AND LAKE MAUREPAS A HURRICANE WATCH IS IN EFFECT FOR... * EAST OF DESTIN TO INDIAN PASS FLORIDA A TROPICAL STORM WARNING IS IN EFFECT FOR... * THE FLORIDA PENINSULA FROM SEBASTIAN INLET SOUTHWARD ON THE EAST COAST AND FROM ANCLOTE KEY SOUTHWARD ON THE WEST COAST. * FLORIDA KEYS...INCLUDING THE DRY TORTUGAS AND FLORIDA BAY * LAKE OKEECHOBEE A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA...IN THIS CASE WITHIN THE NEXT 24 HOURS. PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE RUSHED TO COMPLETION. 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 WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA WITHIN 36 HOURS. TROPICAL STORM CENTER LOCATED NEAR 24.2N 82.3W AT 26/2100Z POSITION ACCURATE WITHIN 25 NM PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 295 DEGREES AT 14 KT ESTIMATED MINIMUM CENTRAL PRESSURE 994 MB MAX SUSTAINED WINDS 50 KT WITH GUSTS TO 60 KT. 50 KT....... 60NE 0SE 0SW 60NW. 34 KT.......180NE 120SE 80SW 180NW. 12 FT SEAS..150NE 150SE 120SW 120NW. 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 24.2N 82.3W AT 26/2100Z AT 26/1800Z CENTER WAS LOCATED NEAR 23.9N 81.5W FORECAST VALID 27/0600Z 25.1N 83.9W MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 60NE 0SE 0SW 60NW. 34 KT...180NE 120SE 80SW 180NW. FORECAST VALID 27/1800Z 26.3N 85.9W MAX WIND 60 KT...GUSTS 75 KT. 50 KT... 60NE 0SE 0SW 60NW. 34 KT...180NE 120SE 80SW 180NW. FORECAST VALID 28/0600Z 27.7N 87.6W MAX WIND 70 KT...GUSTS 85 KT. 64 KT... 30NE 20SE 10SW 20NW. 50 KT... 60NE 60SE 40SW 50NW. 34 KT...180NE 150SE 80SW 160NW. FORECAST VALID 28/1800Z 28.9N 88.5W MAX WIND 80 KT...GUSTS 100 KT. 50 KT... 70NE 60SE 50SW 60NW. 34 KT...180NE 150SE 90SW 160NW. FORECAST VALID 29/1800Z 30.7N 89.5W MAX WIND 85 KT...GUSTS 105 KT. 50 KT... 60NE 70SE 60SW 40NW. 34 KT...100NE 150SE 100SW 90NW. 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 30/1800Z 32.5N 90.0W...INLAND MAX WIND 30 KT...GUSTS 40 KT. OUTLOOK VALID 31/1800Z 34.5N 90.0W...INLAND MAX WIND 20 KT...GUSTS 30 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 24.2N 82.3W NEXT ADVISORY AT 27/0300Z $$ FORECASTER PASCH |
