ZCZC MIATCMAT4 ALL TTAA00 KNHC DDHHMM TROPICAL STORM ISAAC FORECAST/ADVISORY NUMBER 24 NWS NATIONAL HURRICANE CENTER MIAMI FL AL092018 1500 UTC THU SEP 13 2018 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... NONE. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WARNING IS IN EFFECT FOR... * MARTINIQUE * DOMINICA * GUADELOUPE A TROPICAL STORM WATCH IS IN EFFECT FOR... * ANTIGUA * BARBUDA * MONTSERRAT * ST. KITTS AND NEVIS * SABA AND ST. EUSTATIUS * ST. MARTIN AND ST. MAARTEN 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. INTERESTS ELSEWHERE IN THE LEEWARD ISLANDS SHOULD MONITOR THE PROGRESS OF ISAAC. TROPICAL STORM CENTER LOCATED NEAR 14.9N 61.8W AT 13/1500Z POSITION ACCURATE WITHIN 15 NM PRESENT MOVEMENT TOWARD THE WEST OR 265 DEGREES AT 17 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1006 MB MAX SUSTAINED WINDS 40 KT WITH GUSTS TO 50 KT. 34 KT.......140NE 0SE 0SW 120NW. 12 FT SEAS..210NE 120SE 15SW 180NW. 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 14.9N 61.8W AT 13/1500Z AT 13/1200Z CENTER WAS LOCATED NEAR 15.0N 61.0W FORECAST VALID 14/0000Z 14.9N 64.2W MAX WIND 35 KT...GUSTS 45 KT. 34 KT...100NE 0SE 0SW 90NW. FORECAST VALID 14/1200Z 14.9N 67.0W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 90NE 0SE 0SW 80NW. FORECAST VALID 15/0000Z 14.9N 69.8W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 80NE 0SE 0SW 80NW. FORECAST VALID 15/1200Z 15.0N 72.3W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 70NE 0SE 0SW 70NW. FORECAST VALID 16/1200Z 15.5N 76.5W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 60NE 0SE 0SW 60NW. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM ON DAY 4 AND 175 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 17/1200Z 17.0N 80.5W MAX WIND 30 KT...GUSTS 40 KT. OUTLOOK VALID 18/1200Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 14.9N 61.8W NEXT ADVISORY AT 13/2100Z $$ FORECASTER BLAKE NNNN
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