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Tropical Storm Grace Forecast Advisory Number 17
2021-08-17 16:52:33| National Hurricane Center (Atlantic)
Issued at 1500 UTC TUE AUG 17 2021 000 WTNT22 KNHC 171452 TCMAT2 TROPICAL STORM GRACE FORECAST/ADVISORY NUMBER 17 NWS NATIONAL HURRICANE CENTER MIAMI FL AL072021 1500 UTC TUE AUG 17 2021 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... NONE. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A HURRICANE WATCH IS IN EFFECT FOR... * YUCATAN PENINSULA OF MEXICO FROM CABO CATOCHE TO PUNTA ALLEN A TROPICAL STORM WARNING IS IN EFFECT FOR... * JAMAICA * SOUTHERN COAST OF THE CUBAN PROVINCES OF SANTIAGO DE CUBA...GRANMA...LAS TUNAS...AND CAMAGUEY * CAYMAN ISLANDS A TROPICAL STORM WATCH IS IN EFFECT FOR... * ENTIRE COAST OF HAITI * SOUTHERN COAST OF THE CUBAN PROVINCES OF CIEGO DE AVILA...SANCTI SPIRITUS...CIENFUEGOS...MATANZAS...AND PINAR DEL RIO...AS WELL AS ISLA DE LA JUVENTUD. 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. A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA. INTERESTS ELSEWHERE IN THE YUCATAN PENINSULA OF MEXICO SHOULD MONITOR THE PROGRESS OF GRACE. ADDITIONAL WATCHES OR WARNINGS MAY BE REQUIRED FOR PORTIONS OF THE YUCATAN COAST LATER TODAY. TROPICAL STORM CENTER LOCATED NEAR 18.3N 76.8W AT 17/1500Z POSITION ACCURATE WITHIN 40 NM PRESENT MOVEMENT TOWARD THE WEST OR 280 DEGREES AT 13 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1005 MB MAX SUSTAINED WINDS 45 KT WITH GUSTS TO 55 KT. 34 KT....... 60NE 60SE 0SW 0NW. 12 FT SEAS.. 60NE 0SE 0SW 0NW. 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 18.3N 76.8W AT 17/1500Z AT 17/1200Z CENTER WAS LOCATED NEAR 18.2N 76.1W FORECAST VALID 18/0000Z 18.8N 79.0W MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 30NE 30SE 0SW 20NW. 34 KT... 60NE 60SE 0SW 40NW. FORECAST VALID 18/1200Z 19.2N 82.2W MAX WIND 65 KT...GUSTS 80 KT. 64 KT... 15NE 15SE 0SW 0NW. 50 KT... 30NE 30SE 0SW 20NW. 34 KT... 60NE 60SE 0SW 40NW. FORECAST VALID 19/0000Z 19.7N 85.3W MAX WIND 70 KT...GUSTS 85 KT. 64 KT... 20NE 20SE 0SW 15NW. 50 KT... 40NE 40SE 0SW 30NW. 34 KT... 90NE 90SE 30SW 70NW. FORECAST VALID 19/1200Z 20.4N 88.3W...INLAND MAX WIND 65 KT...GUSTS 80 KT. 64 KT... 15NE 15SE 0SW 15NW. 50 KT... 40NE 20SE 0SW 30NW. 34 KT...100NE 80SE 30SW 70NW. FORECAST VALID 20/0000Z 20.9N 91.3W...OVER WATER MAX WIND 60 KT...GUSTS 75 KT. 50 KT... 40NE 40SE 0SW 30NW. 34 KT...110NE 80SE 40SW 90NW. FORECAST VALID 20/1200Z 21.1N 94.0W MAX WIND 65 KT...GUSTS 80 KT. 50 KT... 50NE 40SE 0SW 40NW. 34 KT...120NE 90SE 40SW 90NW. 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 21/1200Z 21.5N 98.5W...INLAND MAX WIND 65 KT...GUSTS 80 KT. OUTLOOK VALID 22/1200Z 21.5N 103.0W...POST-TROP/INLAND MAX WIND 30 KT...GUSTS 40 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 18.3N 76.8W INTERMEDIATE PUBLIC ADVISORY...WTNT32 KNHC/MIATCPAT2...AT 17/1800Z NEXT ADVISORY AT 17/2100Z $$ FORECASTER PASCH
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