WTPH20 RPMM 121800 TTT TYPHOON WARNING 08 AT 1800 12 SEPTEMBER TYPHOON {MERANTI} (1614) WAS LOCATED BASED ON ALL AVAILABLE DATA AT ONE NINE POINT THREE NORTH ONE TWO SIX POINT SEVEN EAST FORECAST TO MOVE WEST NORTHWEST AT ZERO SIX METERS PER SECOND ROUGH TO PHENOMENAL SEAS WITHIN THREE ZERO ZERO KILOMETER RADIUS FROM THE CENTER ESTIMATED CENTRAL PRESSURE NINE TWO SEVEN HECROPASCALS MAXIMUM WINDS FIVE NINE METERS PER SECOND NEAR THE CENTER THREE THREE METERS PER SECOND WITHIN ONE FIVE ZERO KILOMETER RADIUS FROM THE CENTER ONE THREE METERS PER SECOND WITHIN THREE ZERO ZERO KILOMETER RADIUS FROM THE CENTER FORECAST POSITIONS AT 131800 TWO ZERO POINT FIVE NORTH ONE TWO TWO POINT THREE EAST AT 141800 TWO ONE POINT FIVE NORTH ONE ONE EIGHT POINT SIX EAST AT 151800 TWO FOUR POINT ZERO NORTH ONE ONE FIVE POINT FOUR EAST AND AT 161800 TWO SEVEN POINT THREE NORTH ONE ONE SIX POINT ZERO EAST ALL SHIPS WITHIN TYPHOON AREA ARE REQUESTED TO SEND THREE HOURLY WEATHER REPORT TO PHILIPPINE ATMOSPHERIC GEOPHYSICAL AND ASTRONOMICAL SERVICES ADMINSTRATION PD PAGASA=