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#1063426 (Received by flhurricane at: 10:51 PM 26.Sep.2021) TCMAT3 HURRICANE SAM FORECAST/ADVISORY NUMBER 18 NWS NATIONAL HURRICANE CENTER MIAMI FL AL182021 0300 UTC MON SEP 27 2021 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. HURRICANE CENTER LOCATED NEAR 14.7N 50.8W AT 27/0300Z POSITION ACCURATE WITHIN 15 NM PRESENT MOVEMENT TOWARD THE NORTHWEST OR 315 DEGREES AT 6 KT ESTIMATED MINIMUM CENTRAL PRESSURE 943 MB EYE DIAMETER 15 NM MAX SUSTAINED WINDS 125 KT WITH GUSTS TO 150 KT. 64 KT....... 25NE 20SE 20SW 20NW. 50 KT....... 40NE 30SE 25SW 30NW. 34 KT....... 80NE 80SE 60SW 70NW. 12 FT SEAS..120NE 75SE 90SW 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 14.7N 50.8W AT 27/0300Z AT 27/0000Z CENTER WAS LOCATED NEAR 14.5N 50.6W FORECAST VALID 27/1200Z 15.3N 51.6W MAX WIND 125 KT...GUSTS 150 KT. 64 KT... 25NE 20SE 20SW 20NW. 50 KT... 40NE 30SE 25SW 30NW. 34 KT... 90NE 80SE 60SW 70NW. FORECAST VALID 28/0000Z 16.2N 52.8W MAX WIND 120 KT...GUSTS 145 KT. 64 KT... 25NE 20SE 20SW 20NW. 50 KT... 50NE 40SE 30SW 40NW. 34 KT... 90NE 80SE 60SW 70NW. FORECAST VALID 28/1200Z 17.0N 53.9W MAX WIND 120 KT...GUSTS 145 KT. 64 KT... 30NE 25SE 20SW 25NW. 50 KT... 50NE 40SE 30SW 40NW. 34 KT... 90NE 80SE 60SW 80NW. FORECAST VALID 29/0000Z 17.8N 55.0W MAX WIND 120 KT...GUSTS 145 KT. 64 KT... 35NE 30SE 25SW 30NW. 50 KT... 50NE 45SE 35SW 40NW. 34 KT... 90NE 80SE 70SW 80NW. FORECAST VALID 29/1200Z 18.7N 56.3W MAX WIND 115 KT...GUSTS 140 KT. 50 KT... 50NE 50SE 40SW 40NW. 34 KT...100NE 90SE 70SW 80NW. FORECAST VALID 30/0000Z 20.0N 58.0W MAX WIND 115 KT...GUSTS 140 KT. 50 KT... 60NE 50SE 45SW 45NW. 34 KT...110NE 90SE 70SW 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 01/0000Z 23.4N 61.0W MAX WIND 110 KT...GUSTS 135 KT. OUTLOOK VALID 02/0000Z 28.4N 62.6W MAX WIND 105 KT...GUSTS 130 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 14.7N 50.8W NEXT ADVISORY AT 27/0900Z $$ FORECASTER STEWART |