ZCZC MIATCMAT4 ALL
TTAA00 KNHC DDHHMM
TROPICAL STORM IVAN FORECAST/ADVISORY NUMBER   5
NATIONAL WEATHER SERVICE MIAMI FL   AL0998
1500Z MON SEP 21 1998
 
 
TROPICAL STORM CENTER LOCATED NEAR 18.8N  36.2W AT 21/1500Z
POSITION ACCURATE WITHIN  60 NM
 
PRESENT MOVEMENT TOWARD THE NORTHWEST OR 310 DEGREES AT 12 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE 1005 MB
MAX SUSTAINED WINDS  35 KT WITH GUSTS TO  45 KT
34 KT....... 40NE  40SE  40SW  40NW
12 FT SEAS.. 40NE  40SE  40SW  40NW
ALL QUADRANT RADII IN NAUTICAL MILES
 
REPEAT...CENTER LOCATED NEAR 18.8N  36.2W AT 21/1500Z
AT 21/1200Z CENTER WAS LOCATED NEAR 18.4N  35.7W
 
FORECAST VALID 22/0000Z 19.9N  37.6W
MAX WIND  35 KT...GUSTS  45 KT
34 KT... 40NE  40SE  40SW  40NW
 
FORECAST VALID 22/1200Z 21.5N  39.1W
MAX WIND  35 KT...GUSTS  45 KT
34 KT... 40NE  40SE  40SW  40NW
 
FORECAST VALID 23/0000Z 22.9N  40.8W
MAX WIND  35 KT...GUSTS  45 KT
34 KT... 40NE  40SE  40SW  40NW
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 18.8N  36.2W
 
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE
 
OUTLOOK VALID 23/1200Z 24.5N  42.6W
MAX WIND  35 KT...GUSTS  45 KT
 
OUTLOOK VALID 24/1200Z 27.5N  45.5W
MAX WIND  40 KT...GUSTS  50 KT
 
NEXT ADVISORY AT 21/2100Z
 
RAPPAPORT
 
STRIKE PROBABILITIES ASSOCIATED WITH THIS ADVISORY NUMBER CAN BE
FOUND UNDER AFOS HEADER MIASPFAT4 AND WMO HEADER WTNT74 KNHC.
 
 
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