WTPH20 RPMM 040000 TTT TYPHOON WARNING 11 AT 0000 04 APRIL TYPHOON {MAYSAK} (1504) WAS LOCATED BASED ON ALL AVAILABLE DATA AT ONE FOUR POINT SEVEN NORTH ONE TWO SIX POINT FIVE EAST FORECAST TO MOVE WEST NORTHWEST AT ZERO SIX METERS PER SECOND ROUGH TO PHENOMENAL SEAS WITHIN TWO ZERO ZERO KILOMETER RADIUS ESTIMATED CENTRAL PRESSURE NINE SEVEN TWO HECTOPASCALS MAXIMUM WINDS THREE SIX METERS PER SECOND NEAR THE CENTER TWO FIVE METERS PER SECOND WITHIN ONE ZERO ZERO KILOMETER RADIUS FROM THE CENTER ONE THREE METERS PER SECOND WITHIN TWO ZERO ZERO KILOMETER RADIUS FORECAST POSITIONS AT 050000 ONE SEVEN POINT TWO NORTH ONE TWO ONE POINT NINE EAST AND AT 060000 ONE NINE POINT FIVE NORTH ONE ONE SEVEN POINT ZERO EAST ALL SHIPS WITHIN TYPHOON AREA ARE REQUESTED TO SEND THREE HOURLY WEATHER REPORT TO PHILIPPINE ATMOSPHERIC GEOPHYSICAL AND ASTRONOMICAL SERVICES ADMINISTRATION PD PAGASA=