ZCZC MIATCPAT2 ALL TTAA00 KNHC DDHHMM BULLETIN TROPICAL DEPRESSION TWO ADVISORY NUMBER 4 NATIONAL WEATHER SERVICE MIAMI FL 11 AM AST THU AUG 20 1998 ...DEPRESSION MOVING RAPIDLY TOWARD THE WEST-NORTHWEST... AT 11 AM AST...1500Z...A TROPICAL STORM WATCH HAS BEEN ISSUED FOR THE U.S. AND BRITISH VIRGIN ISLANDS. A TROPICAL STORM WATCH REMAINS IN EFFECT FOR THE NORTHERN LEEWARD ISLANDS OF ANTIGUA..BARBUDA...ANGUILLA...ST. MAARTEN...SABA...AND ST. EUSTATIUS. A TROPICAL STORM WARNING MAY BE REQUIRED FOR SOME OF THESE ISLANDS BY MID-AFTERNOON. AT 11 AM AST...1500Z...THE CENTER OF THE BROAD CIRCULATION OF TROPICAL DEPRESSION TWO WAS LOCATED NEAR LATITUDE 18.0 NORTH... LONGITUDE 58.0 WEST OR ABOUT 250 MILES...400 KM...EAST-NORTHEAST OF THE LEEWARD ISLANDS. THE DEPRESSION IS MOVING TOWARD THE WEST-NORTHWEST NEAR 23 MPH ...37 KM/HR...AND THIS MOTION IS EXPECTED TO CONTINUE TODAY AND TONIGHT. MAXIMUM SUSTAINED WINDS ARE ESTIMATED TO BE NEAR 35 MPH... 55 KM/HR...WITH HIGHER GUSTS MAINLY TO THE NORTH OF THE CENTER. STRENGTHENING IS FORECAST DURING THE NEXT 24 HOURS. AN AIR FORCE HURRICANE HUNTER PLANE IS SCHEDULED TO INVESTIGATE THE SYSTEM LATER TODAY TO DETERMINE IF IT HAS BECOME A TROPICAL STORM. ESTIMATED MINIMUM CENTRAL PRESSURE IS 1005 MB...29.68 INCHES. OUTER RAINBANDS OF THE DEPRESSION ARE SPREADING OVER PORTIONS OF THE LEEWARD ISLANDS THIS MORNING...ACCOMPANIED BY LOCALLY HEAVY SHOWERS AND GUSTY WINDS IN SQUALLS. REPEATING THE 11 AM AST POSITION...18.0 N... 58.0 W. MOVEMENT TOWARD...WEST NORTHWEST NEAR 23 MPH. MAXIMUM SUSTAINED WINDS... 35 MPH. MINIMUM CENTRAL PRESSURE...1005 MB. AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 2 PM AST FOLLOWED BY THE NEXT COMPLETE ADVISORY AT 5 PM AST. PASCH STRIKE PROBABILITIES ASSOCIATED WITH THIS ADVISORY NUMBER CAN BE FOUND UNDER AFOS HEADER MIASPFAT2 AND WMO HEADER WTNT72 KNHC. NNNN