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HURRICANE ISAAC FORECAST/ADVISORY NUMBER  23
NATIONAL WEATHER SERVICE MIAMI FL   AL1300
0300Z WED SEP 27 2000 
 
HURRICANE CENTER LOCATED NEAR 20.1N  46.2W AT 27/0300Z
POSITION ACCURATE WITHIN  20 NM
 
PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 300 DEGREES AT 11 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  975 MB
MAX SUSTAINED WINDS  80 KT WITH GUSTS TO  95 KT.
64 KT....... 25NE  25SE  25SW  25NW.
50 KT....... 60NE  45SE  45SW  60NW.
34 KT.......120NE 100SE 100SW 120NW.
12 FT SEAS..300NE 200SE 150SW 350NW.
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 20.1N  46.2W AT 27/0300Z
AT 27/0000Z CENTER WAS LOCATED NEAR 19.8N  45.7W
 
FORECAST VALID 27/1200Z 21.0N  47.7W
MAX WIND  80 KT...GUSTS  95 KT.
64 KT... 25NE  25SE  25SW  25NW.
50 KT... 60NE  45SE  45SW  60NW.
34 KT...120NE 100SE 100SW 120NW.
 
FORECAST VALID 28/0000Z 22.3N  49.6W
MAX WIND  80 KT...GUSTS  95 KT.
64 KT... 25NE  25SE  25SW  25NW.
50 KT... 60NE  45SE  45SW  60NW.
34 KT...120NE 100SE 100SW 120NW.
 
FORECAST VALID 28/1200Z 23.7N  51.5W
MAX WIND  85 KT...GUSTS 105 KT.
64 KT... 25NE  25SE  25SW  25NW.
50 KT... 60NE  45SE  45SW  60NW.
34 KT...120NE 100SE 100SW 120NW.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 20.1N  46.2W
 
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE
 
OUTLOOK VALID 29/0000Z 25.5N  53.5W
MAX WIND  90 KT...GUSTS 110 KT.
50 KT... 60NE  45SE  45SW  60NW.
 
OUTLOOK VALID 30/0000Z 30.5N  57.0W
MAX WIND  90 KT...GUSTS 110 KT.
50 KT... 60NE  45SE  45SW  60NW.
 
NEXT ADVISORY AT 27/0900Z
 
FORECASTER STEWART
 
 
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