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ZCZC MIATCPAT1 ALL TTAA00 KNHC DDHHMM BULLETIN TROPICAL STORM LENNY INTERMEDIATE ADVISORY NUMBER 27A NATIONAL WEATHER SERVICE MIAMI FL 2 AM AST SAT NOV 20 1999 ...LENNY CONTINUES TO WEAKEN... TROPICAL STORM WARNINGS REMAIN IN EFFECT FOR MONTSERRAT...ANTIGUA... AND BARBUDA. AT 2 AM AST...0600Z...THE CENTER OF TROPICAL STORM LENNY WAS LOCATED NEAR LATITUDE 17.1 NORTH...LONGITUDE 61.3 WEST...OR ABOUT 30 MILES EAST OF ANTIGUA. LENNY IS MOVING TOWARD THE EAST-SOUTHEAST NEAR 6 MPH... 10 KM/HR...AND THIS GENERAL MOTION IS EXPECTED TO CONTINUE TODAY. MAXIMUM SUSTAINED WINDS HAVE DECREASED TO NEAR 60 MPH...95 KM/HR... WITH HIGHER GUSTS. ADDITIONAL WEAKENING IS FORECAST DURING THE NEXT 24 HOURS. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 115 MILES ...185 KM FROM THE CENTER. THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 999 MB...29.50 INCHES. ADDITIONAL RAINFALL AMOUNTS OF 5 TO 10 INCHES...EVEN HIGHER IN THE MOUNTAINS...COULD OCCUR OVER PORTIONS OF THE LEEWARD ISLANDS BEFORE LENNY MOVES AWAY. THESE RAINS POSE A RISK OF LIFE-THREATENING FLASH FLOODS AND MUD SLIDES. STORM SURGE FLOODING OF 2 TO 4 FT ABOVE NORMAL TIDE LEVELS...HAS BEEN EXPECTED NEAR WHERE THE STRONGEST WINDS ARE BLOWING ONSHORE. THIS FLOODING IS EXPECTED TO GRADUALLY SUBSIDE TODAY. REPEATING THE 2 AM AST POSITION...17.1 N... 61.3 W. MOVEMENT TOWARD...EAST-SOUTHEAST NEAR 6 MPH. MAXIMUM SUSTAINED WINDS... 60 MPH. MINIMUM CENTRAL PRESSURE... 999 MB. THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 5 AM AST. FRANKLIN NNNN