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HURRICANE LENNY INTERMEDIATE ADVISORY NUMBER  24A
NATIONAL WEATHER SERVICE MIAMI FL
8 AM AST FRI NOV 19 1999
 
...LENNY MEANDERING NEAR ST. MAARTEN...WEAKENS FURTHER...

A HURRICANE WARNING REMAINS IN EFFECT FOR DUTCH ST. MAARTEN...
FRENCH ST. MARTIN...ST. BARTHELEMEY...ANGUILLA...SABA...ST.
EUSTATIUS...ST. KITTS...NEVIS...MONTSERRAT...ANTIGUA...AND
BARBUDA.
 
AT 8 AM AST...1200Z...THE CENTER OF HURRICANE LENNY WAS LOCATED NEAR
LATITUDE 17.9 NORTH...LONGITUDE  63.0 OR JUST SOUTH OF THE ISLAND OF
ST. MAARTEN. THIS IS ALSO JUST WEST OF ST. BARTHELEMEY.
 
LENNY IS CURRENTLY DRIFTING ERRATICALLY. A SLOW EAST-NORTHEAST
MOTION IS EXPECTED TO BEGIN LATER TODAY. WITH THIS SLOW MOTION...THE
CENTER OF LENNY WILL LIKELY BE NEAR ST. BARTHELEMEY...ST.
MAARTEN...AND ANGUILLA FOR MUCH OF THE DAY.
 
MAXIMUM SUSTAINED WINDS HAVE DECREASED TO NEAR 95 MPH...160
KM/HR...WITH HIGHER GUSTS.  THIS MAKES LENNY A CATEGORY 1 HURRICANE
ON THE SAFFIR-SIMPSON HURRICANE SCALE.  SUSTAINED WINDS STRONGER
THAN 95 MPH COULD BE EXPERIENCED IN MOUNTAINOUS AREAS. SOME FURTHER
WEAKENING IS FORECAST DURING THE NEXT 24 HOURS.
 
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO  30 MILES... 45 KM...
FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP
TO 145 MILES...230 KM.
 
THE LATEST MINIMUM CENTRAL PRESSURE REPORTED BY AN AIR FORCE RESERVE
HURRICANE HUNTER AIRCRAFT WAS  986 MB...29.12 INCHES.
 
ADDITIONAL RAINFALL TOTALS OF 10 TO 15 INCHES...WITH LOCALLY HIGHER
AMOUNTS IN MOUNTAINOUS REGIONS...MAY OCCUR IN ASSOCIATION WITH THE
HURRICANE.  THESE RAINS CAN PRODUCE LIFE-THREATENING FLASH FLOODS
AND MUD SLIDES.
 
STORM SURGE FLOODING OF 3 TO 5 FT ABOVE NORMAL...ACCOMPANIED BY
DANGEROUS LARGE BATTERING WAVES...IS EXPECTED NEAR THE CENTER OF THE
HURRICANE.
 
REPEATING THE 8 AM AST POSITION...17.9 N... 63.0 W.  MOVEMENT...
DRIFTING ERRATICALLY.  MAXIMUM SUSTAINED WINDS...95 MPH.  MINIMUM
CENTRAL PRESSURE... 986 MB.
 
THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE AT 11 AM
AST.
 
BEVEN
 
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