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BULLETIN
HURRICANE LENNY ADVISORY NUMBER  23
NATIONAL WEATHER SERVICE MIAMI FL
11 PM AST THU NOV 18 1999

...LENNY EYEING ANGUILLA IN THE NORTHEAST CARIBBEAN...
  
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 11 PM AST...0300Z...THE CENTER OF HURRICANE LENNY WAS LOCATED
NEAR LATITUDE 18.2 NORTH...LONGITUDE  63.1 WEST...OR OVER THE ISLAND
OF ANGUILLA.
 
LENNY HAS MOVED LITTLE OVER THE PAST SEVERAL HOURS...HOWEVER A SLOW
MOTION TOWARD THE NORTHEAST IS EXPECTED TOMORROW.  OVER THE NEXT
SEVERAL HOURS THE CORE OF THE HURRICANE WILL CONTINUE TO AFFECT THE
ISLANDS OF ST. MAARTEN...ANGUILLA...AND ST. BARTHELEMY.  WINDS OF
100 MPH WERE REPORTED EARLIER THIS EVENING BY THE SHIP CAIT NAMARO
IN SIMSON BAY ST MAARTEN.  AFTER PASSING OVER ST. MAARTEN...RECENT
REPORTS INDICATE THAT THE EYE OF LENNY IS NOW OVER ANGUILLA.  
 
MAXIMUM SUSTAINED WINDS ARE NEAR 110 MPH...175 KM/HR...WITH HIGHER
GUSTS.  THIS MAKES LENNY A STILL-DANGEROUS CATEGORY TWO HURRICANE ON
THE SAFFIR-SIMPSON SCALE.  SUSTAINED WINDS STRONGER THAN 110 MPH
COULD BE EXPERIENCED IN MOUNTAINOUS AREAS.  SOME ADDITIONAL
WEAKENING IS FORECAST DURING THE NEXT 24 HOURS...BUT LENNY WILL
REMAIN A DANGEROUS HURRICANE AS IT MOVES SLOWLY THROUGH THE ISLANDS
OF THE NORTHEAST CARIBBEAN.
 
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO  35 MILES... 55 KM...
FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP
TO 145 MILES...230 KM.
 
THE LATEST MINIMUM CENTRAL PRESSURE REPORTED BY A RECONNAISSANCE
AIRCRAFT WAS  975 MB...28.79 INCHES.
 
RAINFALL TOTALS OF 10 TO 15 INCHES...WITH LOCALLY HIGHER AMOUNTS IN
MOUNTAINOUS REGIONS...ARE ASSOCIATED 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 11 PM AST POSITION...18.2 N... 63.1 W.  MOVEMENT
STATIONARY.  MAXIMUM SUSTAINED WINDS...110 MPH.  MINIMUM CENTRAL
PRESSURE... 975 MB.
 
AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE
CENTER AT 2 AM AST FRIDAY FOLLOWED BY THE NEXT COMPLETE ADVISORY AT
5 AM AST.
 
FRANKLIN
 
STRIKE PROBABILITIES ASSOCIATED WITH THIS ADVISORY NUMBER CAN BE
FOUND UNDER AFOS HEADER MIASPFAT1 AND WMO HEADER WTNT71 KNHC.
 
 
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