474
WTNT25 KNHC 210840
TCMAT5
HURRICANE TAMMY FORECAST/ADVISORY NUMBER 12
NWS NATIONAL HURRICANE CENTER MIAMI FL AL202023
0900 UTC SAT OCT 21 2023
NOTICE... LAND-BASED TROPICAL CYCLONE WATCHES AND WARNINGS ARE NO
LONGER INCLUDED IN THE TROPICAL CYCLONE FORECAST/ADVISORY...(TCM).
CURRENT LAND-BASED COASTAL WATCHES AND WARNINGS CAN BE FOUND IN THE
MOST RECENTLY ISSUED TROPICAL CYCLONE PUBLIC ADVISORY...(TCP).
HURRICANE CENTER LOCATED NEAR 15.2N 60.4W AT 21/0900Z
POSITION ACCURATE WITHIN 25 NM
PRESENT MOVEMENT TOWARD THE NORTHWEST OR 305 DEGREES AT 8 KT
ESTIMATED MINIMUM CENTRAL PRESSURE 991 MB
MAX SUSTAINED WINDS 70 KT WITH GUSTS TO 85 KT.
64 KT....... 20NE 0SE 0SW 20NW.
50 KT....... 50NE 20SE 0SW 40NW.
34 KT.......110NE 110SE 30SW 80NW.
12 FT SEAS..270NE 180SE 60SW 270NW.
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 15.2N 60.4W AT 21/0900Z
AT 21/0600Z CENTER WAS LOCATED NEAR 14.9N 60.3W
FORECAST VALID 21/1800Z 16.3N 61.3W
MAX WIND 75 KT...GUSTS 90 KT.
64 KT... 20NE 10SE 0SW 15NW.
50 KT... 40NE 30SE 10SW 30NW.
34 KT...100NE 100SE 30SW 70NW.
FORECAST VALID 22/0600Z 17.8N 62.4W
MAX WIND 75 KT...GUSTS 90 KT.
64 KT... 20NE 10SE 0SW 15NW.
50 KT... 40NE 30SE 10SW 30NW.
34 KT...100NE 100SE 30SW 70NW.
FORECAST VALID 22/1800Z 19.3N 63.3W
MAX WIND 75 KT...GUSTS 90 KT.
64 KT... 20NE 15SE 0SW 15NW.
50 KT... 40NE 30SE 10SW 30NW.
34 KT...100NE 110SE 30SW 70NW.
FORECAST VALID 23/0600Z 20.6N 64.0W
MAX WIND 75 KT...GUSTS 90 KT.
64 KT... 20NE 15SE 0SW 15NW.
50 KT... 40NE 30SE 15SW 30NW.
34 KT...100NE 110SE 30SW 70NW.
FORECAST VALID 23/1800Z 21.9N 64.2W
MAX WIND 75 KT...GUSTS 90 KT.
50 KT... 40NE 30SE 15SW 30NW.
34 KT...100NE 110SE 40SW 70NW.
FORECAST VALID 24/0600Z 22.8N 64.0W
MAX WIND 75 KT...GUSTS 90 KT.
50 KT... 40NE 40SE 20SW 30NW.
34 KT...110NE 110SE 50SW 90NW.
EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 125 NM
ON DAY 4 AND 175 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY
OUTLOOK VALID 25/0600Z 24.5N 63.1W
MAX WIND 70 KT...GUSTS 85 KT.
OUTLOOK VALID 26/0600Z 27.0N 62.1W
MAX WIND 60 KT...GUSTS 75 KT.
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 15.2N 60.4W
INTERMEDIATE PUBLIC ADVISORY...WTNT35 KNHC/MIATCPAT5...AT 21/1200Z
NEXT ADVISORY AT 21/1500Z
FORECASTER BERG
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