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Hurricane Sam Forecast Advisory Number 31
2021-09-30 10:53:56| National Hurricane Center (Atlantic)
Issued at 0900 UTC THU SEP 30 2021 000 WTNT23 KNHC 300853 TCMAT3 HURRICANE SAM FORECAST/ADVISORY NUMBER 31 NWS NATIONAL HURRICANE CENTER MIAMI FL AL182021 0900 UTC THU SEP 30 2021 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... THE BERMUDA WEATHER SERVICE HAS ISSUED A TROPICAL STORM WATCH FOR BERMUDA. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WATCH IS IN EFFECT FOR... * BERMUDA A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 HOURS. HURRICANE CENTER LOCATED NEAR 21.5N 59.1W AT 30/0900Z POSITION ACCURATE WITHIN 15 NM PRESENT MOVEMENT TOWARD THE NORTHWEST OR 320 DEGREES AT 10 KT ESTIMATED MINIMUM CENTRAL PRESSURE 937 MB MAX SUSTAINED WINDS 125 KT WITH GUSTS TO 150 KT. 64 KT....... 50NE 40SE 35SW 40NW. 50 KT....... 80NE 70SE 50SW 60NW. 34 KT.......130NE 120SE 90SW 110NW. 12 FT SEAS..180NE 150SE 150SW 150NW. 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 21.5N 59.1W AT 30/0900Z AT 30/0600Z CENTER WAS LOCATED NEAR 21.0N 58.8W FORECAST VALID 30/1800Z 23.0N 60.2W MAX WIND 130 KT...GUSTS 160 KT. 64 KT... 50NE 45SE 35SW 45NW. 50 KT... 90NE 70SE 60SW 70NW. 34 KT...130NE 120SE 90SW 110NW. FORECAST VALID 01/0600Z 25.6N 61.4W MAX WIND 125 KT...GUSTS 150 KT. 64 KT... 50NE 45SE 35SW 45NW. 50 KT... 90NE 70SE 60SW 70NW. 34 KT...130NE 130SE 90SW 110NW. FORECAST VALID 01/1800Z 28.4N 61.8W MAX WIND 120 KT...GUSTS 145 KT. 64 KT... 50NE 45SE 40SW 45NW. 50 KT... 80NE 70SE 60SW 70NW. 34 KT...140NE 140SE 100SW 110NW. FORECAST VALID 02/0600Z 31.1N 61.3W MAX WIND 115 KT...GUSTS 140 KT. 64 KT... 50NE 50SE 40SW 40NW. 50 KT... 80NE 80SE 60SW 70NW. 34 KT...150NE 150SE 120SW 120NW. FORECAST VALID 02/1800Z 33.5N 59.9W MAX WIND 105 KT...GUSTS 130 KT. 50 KT... 80NE 80SE 60SW 70NW. 34 KT...160NE 180SE 130SW 150NW. FORECAST VALID 03/0600Z 35.5N 58.0W MAX WIND 95 KT...GUSTS 115 KT. 50 KT... 80NE 80SE 70SW 80NW. 34 KT...160NE 180SE 140SW 160NW. 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 04/0600Z 38.7N 52.6W MAX WIND 80 KT...GUSTS 100 KT. OUTLOOK VALID 05/0600Z 44.3N 45.0W...POST-TROP/EXTRATROP MAX WIND 65 KT...GUSTS 80 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 21.5N 59.1W INTERMEDIATE PUBLIC ADVISORY...WTNT33 KNHC/MIATCPAT3...AT 30/1200Z NEXT ADVISORY AT 30/1500Z $$ FORECASTER BROWN
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