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HURRICANE ISAAC FORECAST/ADVISORY NUMBER  30
NATIONAL WEATHER SERVICE MIAMI FL   AL1300
2100Z THU SEP 28 2000
 
HURRICANE CENTER LOCATED NEAR 27.4N  54.7W AT 28/2100Z
POSITION ACCURATE WITHIN  15 NM
 
PRESENT MOVEMENT TOWARD THE NORTHWEST OR 325 DEGREES AT 17 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  943 MB
EYE DIAMETER  25 NM
MAX SUSTAINED WINDS 120 KT WITH GUSTS TO 145 KT.
64 KT....... 50NE  40SE  40SW  40NW.
50 KT....... 75NE  60SE  60SW  60NW.
34 KT.......200NE 150SE 150SW 150NW.
12 FT SEAS..375NE 375SE 250SW 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 27.4N  54.7W AT 28/2100Z
AT 28/1800Z CENTER WAS LOCATED NEAR 26.6N  54.2W
 
FORECAST VALID 29/0600Z 29.7N  55.8W
MAX WIND 120 KT...GUSTS 145 KT.
64 KT... 50NE  40SE  40SW  40NW.
50 KT... 75NE  60SE  60SW  60NW.
34 KT...200NE 150SE 150SW 150NW.
 
FORECAST VALID 29/1800Z 32.7N  56.0W
MAX WIND 115 KT...GUSTS 140 KT.
64 KT... 50NE  40SE  40SW  40NW.
50 KT... 75NE  60SE  60SW  60NW.
34 KT...200NE 150SE 150SW 150NW.
 
FORECAST VALID 30/0600Z 35.5N  54.5W
MAX WIND 110 KT...GUSTS 135 KT.
64 KT... 50NE  50SE  40SW  40NW.
50 KT... 75NE  75SE  60SW  60NW.
34 KT...175NE 175SE 125SW 125NW.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 27.4N  54.7W
 
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE
 
OUTLOOK VALID 30/1800Z 38.0N  52.0W
MAX WIND 100 KT...GUSTS 120 KT.
50 KT... 60NE  75SE  60SW  60NW.
 
OUTLOOK VALID 01/1800Z 42.5N  46.0W
MAX WIND  80 KT...GUSTS  95 KT.
50 KT... 60NE  75SE  60SW  60NW.
 
NEXT ADVISORY AT 29/0300Z
 
FORECASTER PASCH
 
 
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