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HURRICANE IVAN FORECAST/ADVISORY NUMBER  18
NATIONAL WEATHER SERVICE MIAMI FL   AL0998
2100Z THU SEP 24 1998
 
HURRICANE CENTER LOCATED NEAR 34.0N  42.4W AT 24/2100Z
POSITION ACCURATE WITHIN  45 NM
 
PRESENT MOVEMENT TOWARD THE NORTH OR 350 DEGREES AT 12 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  984 MB
MAX SUSTAINED WINDS  70 KT WITH GUSTS TO  85 KT
64 KT....... 25NE  25SE  25SW  25NW
50 KT....... 30NE  30SE  30SW  30NW
34 KT.......100NE 100SE  60SW  75NW
12 FT SEAS..200NE 100SE 100SW 200NW
ALL QUADRANT RADII IN NAUTICAL MILES
 
REPEAT...CENTER LOCATED NEAR 34.0N  42.4W AT 24/2100Z
AT 24/1800Z CENTER WAS LOCATED NEAR 33.4N  42.3W
 
FORECAST VALID 25/0600Z 36.0N  41.8W
MAX WIND  70 KT...GUSTS  85 KT
64 KT... 25NE  25SE  25SW  25NW
50 KT... 30NE  30SE  30SW  30NW
34 KT...100NE 100SE  60SW  75NW
 
FORECAST VALID 25/1800Z 37.8N  40.0W
MAX WIND  70 KT...GUSTS  85 KT
64 KT... 25NE  25SE  25SW  25NW
50 KT... 30NE  30SE  30SW  30NW
34 KT...100NE 100SE  60SW  75NW
 
FORECAST VALID 26/0600Z 39.2N  36.6W
MAX WIND  65 KT...GUSTS  80 KT
64 KT... 25NE  25SE  25SW  25NW
50 KT... 30NE  30SE  30SW  30NW
34 KT... 75NE 125SE 125SW  60NW
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 34.0N  42.4W
 
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE
 
OUTLOOK VALID 26/1800Z 40.1N  30.5W...EXTRATROPICAL
MAX WIND  55 KT...GUSTS  65 KT
50 KT... 30NE  30SE  30SW  30NW
 
OUTLOOK VALID 27/1800Z 40.0N  15.0W...EXTRATROPICAL
MAX WIND  50 KT...GUSTS  60 KT
50 KT... 30NE  30SE  30SW  30NW
 
NEXT ADVISORY AT 25/0300Z
 
RAPPAPORT
 
STRIKE PROBABILITIES ASSOCIATED WITH THIS ADVISORY NUMBER CAN BE
FOUND UNDER AFOS HEADER MIASPFAT4 AND WMO HEADER WTNT74 KNHC.
 
 
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