Potential Tropical Cyclone Six Forecast Advisory Number 4
ActuCyclone
10 août 2021
767 WTNT21 KNHC 101449 TCMAT1 POTENTIAL TROPICAL CYCLONE SIX FORECAST/ADVISORY NUMBER 4 NWS NATIONAL HURRICANE CENTER MIAMI FL AL062021 1500 UTC TUE AUG 10 2021 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... THE GOVERNMENT OF FRANCE HAS DISCONTINUED THE TROPICAL STORM WATCH FOR MARTINIQUE AND GUADELOUPE. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WARNING IS IN EFFECT FOR... * PUERTO RICO...INCLUDING CULEBRA AND VIEQUES * U.S. VIRGIN ISLANDS * DOMINICAN REPUBLIC ON THE SOUTH COAST FROM PUNTA PALENQUE EASTWARD AND ON THE NORTH COAST FROM CABO FRANCES VIEJO EASTWARD A TROPICAL STORM WATCH IS IN EFFECT FOR... * SABA AND ST. EUSTATIUS * DOMINICAN REPUBLIC ON THE NORTH COAST FROM CABO FRANCES VIEJO TO THE DOMINICAN REPUBLIC/HAITI BORDER * HAITI FROM THE NORTHERN BORDER WITH THE DOMINICAN REPUBLIC TO GONAIVES * TURKS AND CAICOS ISLANDS * SOUTHEASTERN BAHAMAS A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA WITHIN 36 HOURS. A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA. INTERESTS ELSEWHERE IN HAITI AND THE BAHAMAS...AS WELL AS IN EASTERN AND CENTRAL CUBA...SHOULD MONITOR THE PROGRESS OF THIS SYSTEM. POTENTIAL TROP CYCLONE CENTER LOCATED NEAR 16.3N 63.8W AT 10/1500Z POSITION ACCURATE WITHIN 50 NM PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 295 DEGREES AT 16 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1012 MB MAX SUSTAINED WINDS 30 KT WITH GUSTS TO 40 KT. 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 16.3N 63.8W AT 10/1500Z AT 10/1200Z CENTER WAS LOCATED NEAR 16.0N 63.1W FORECAST VALID 11/0000Z 17.3N 66.1W...TROPICAL CYCLONE MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 40NE 0SE 0SW 40NW. FORECAST VALID 11/1200Z 18.5N 68.9W...INLAND MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 50NE 0SE 0SW 50NW. FORECAST VALID 12/0000Z 19.6N 71.4W...INLAND MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 12/1200Z 20.7N 73.9W...OVER WATER MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 13/0000Z 21.7N 76.0W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 60NE 0SE 0SW 50NW. FORECAST VALID 13/1200Z 22.7N 78.1W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 60NE 0SE 0SW 50NW. 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 14/1200Z 25.0N 82.0W MAX WIND 40 KT...GUSTS 50 KT. OUTLOOK VALID 15/1200Z 27.5N 84.0W MAX WIND 50 KT...GUSTS 60 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 16.3N 63.8W INTERMEDIATE PUBLIC ADVISORY...WTNT31 KNHC/MIATCPAT1...AT 10/1800Z NEXT ADVISORY AT 10/2100Z $$ FORECASTER BEVEN