WTPH20 RPMM 021800 TTT TYPHOON WARNING 08 AT 1800 02 OCTOBER TYPHOON {CHABA} (1618) WAS LOCATED BASED ON ALL AVAILABLE DATA AT TWO TWO POINT EIGHT NORTH ONE TWO EIGHT POINT THREE EAST FORECAST TO MOVE NORTH NORTHWEST AT ZERO SIX METERS PER SECOND ROUGH TO PHENOMENAL SEAS WITHIN THREE FIVE ZERO KILOMETER RADIUS ESTIMATED CENTRAL PRESSURE NINE FOUR EIGHT HECTOPASCALS MAXIMUM WINDS FOUR NINE METERS PER SECOND NEAR THE CENTER THREE THREE METERS PER SECOND WITHIN ONE FIVE ZERO KILOMETER RADIUS ONE THREE METERS PER SECOND WITHIN THREE FIVE ZERO KILOMETER RADIUS FORECAST POSITIONS AT 031800 TWO SEVEN POINT ZERO NORTH ONE TWO SIX POINT NINE EAST AT 041800 THREE ONE POINT NINE NORTH ONE TWO SEVEN POINT EIGHT EAST AND AT 051800 THREE SIX POINT TWO NORTH ONE THREE FIVE 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=