Hurricane ISABEL
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HURRICANE ISABEL FORECAST/ADVISORY NUMBER 20
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL132003
0300Z THU SEP 11 2003
HURRICANE CENTER LOCATED NEAR 21.1N 52.8W AT 11/0300Z
POSITION ACCURATE WITHIN 15 NM
PRESENT MOVEMENT TOWARD THE WEST OR 270 DEGREES AT 9 KT
ESTIMATED MINIMUM CENTRAL PRESSURE 935 MB
EYE DIAMETER 20 NM
MAX SUSTAINED WINDS 125 KT WITH GUSTS TO 155 KT.
64 KT....... 50NE 30SE 30SW 50NW.
50 KT.......100NE 60SE 40SW 80NW.
34 KT.......160NE 120SE 100SW 120NW.
12 FT SEAS..275NE 200SE 200SW 275NW.
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 21.1N 52.8W AT 11/0300Z
AT 11/0000Z CENTER WAS LOCATED NEAR 21.1N 52.3W
FORECAST VALID 11/1200Z 21.2N 54.3W
MAX WIND 125 KT...GUSTS 155 KT.
64 KT... 50NE 30SE 30SW 50NW.
50 KT...100NE 60SE 40SW 80NW.
34 KT...160NE 120SE 100SW 120NW.
FORECAST VALID 12/0000Z 21.4N 56.2W
MAX WIND 125 KT...GUSTS 155 KT.
64 KT... 50NE 30SE 30SW 50NW.
50 KT...100NE 60SE 40SW 80NW.
34 KT...160NE 120SE 100SW 120NW.
FORECAST VALID 12/1200Z 21.7N 58.0W
MAX WIND 120 KT...GUSTS 145 KT.
64 KT... 50NE 30SE 30SW 50NW.
50 KT...100NE 60SE 40SW 80NW.
34 KT...160NE 120SE 100SW 120NW.
FORECAST VALID 13/0000Z 22.0N 60.0W
MAX WIND 120 KT...GUSTS 145 KT.
50 KT...100NE 60SE 40SW 80NW.
34 KT...160NE 120SE 100SW 120NW.
FORECAST VALID 14/0000Z 23.0N 64.0W
MAX WIND 115 KT...GUSTS 140 KT.
50 KT...100NE 60SE 40SW 80NW.
34 KT...160NE 120SE 100SW 120NW.
EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 275 NM
ON DAY 4 AND 375 NM ON DAY 5...AND FOR INTENSITY NEAR 20 KT EACH DAY
OUTLOOK VALID 15/0000Z 24.0N 68.0W
MAX WIND 115 KT...GUSTS 140 KT.
OUTLOOK VALID 16/0000Z 25.0N 71.5W
MAX WIND 115 KT...GUSTS 140 KT.
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 21.1N 52.8W
NEXT ADVISORY AT 11/0900Z
FORECASTER FRANKLIN
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