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HURRICANE ISAAC FORECAST/ADVISORY NUMBER  25
NATIONAL WEATHER SERVICE MIAMI FL   AL1300
1500Z WED SEP 27 2000
 
HURRICANE CENTER LOCATED NEAR 21.4N  48.8W AT 27/1500Z
POSITION ACCURATE WITHIN  20 NM
 
PRESENT MOVEMENT TOWARD THE NORTHWEST OR 305 DEGREES AT 12 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  970 MB
EYE DIAMETER  25 NM
MAX SUSTAINED WINDS  90 KT WITH GUSTS TO 110 KT.
64 KT....... 25NE  25SE  25SW  25NW.
50 KT....... 50NE  50SE  50SW  50NW.
34 KT.......100NE  75SE  75SW 100NW.
12 FT SEAS..300NE 200SE 150SW 300NW.
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 21.4N  48.8W AT 27/1500Z
AT 27/1200Z CENTER WAS LOCATED NEAR 21.0N  48.1W
 
FORECAST VALID 28/0000Z 22.4N  50.3W
MAX WIND  90 KT...GUSTS 110 KT.
64 KT... 25NE  25SE  25SW  25NW.
50 KT... 50NE  50SE  50SW  50NW.
34 KT...100NE  75SE  75SW 100NW.
 
FORECAST VALID 28/1200Z 24.2N  52.3W
MAX WIND  95 KT...GUSTS 115 KT.
64 KT... 35NE  35SE  35SW  35NW.
50 KT... 60NE  60SE  60SW  60NW.
34 KT...100NE 100SE 100SW 100NW.
 
FORECAST VALID 29/0000Z 26.3N  54.3W
MAX WIND 100 KT...GUSTS 120 KT.
64 KT... 35NE  35SE  35SW  35NW.
50 KT... 60NE  60SE  60SW  60NW.
34 KT...100NE 100SE 100SW 100NW.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 21.4N  48.8W
 
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE
 
OUTLOOK VALID 29/1200Z 29.0N  55.5W
MAX WIND 100 KT...GUSTS 120 KT.
50 KT... 60NE  60SE  40SW  40NW.
 
OUTLOOK VALID 30/1200Z 35.5N  55.5W
MAX WIND  90 KT...GUSTS 110 KT.
50 KT... 60NE  60SE  40SW  60NW.
 
NEXT ADVISORY AT 27/2100Z
 
FORECASTER PASCH
 
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