WTPH20 RPMM 021200 TTT TYPHOON WARNING 07 AT 1200 02 OCTOBER TYPHOON {CHABA} (1618) WAS LOCATED BASED ON ALL AVAILABLE DATA AT TWO ONE POINT SEVEN NORTH ONE TWO NINE POINT TWO EAST FORECAST TO MOVE NORTHWEST AT ZERO SIX METERS PER SECOND ROUGH TO PHENOMENAL SEAS WITHIN THREE FIVE ZERO KILOMETER RADIUS ESTIMATED CENTRAL PRESSURE NINE FIVE FOUR HECTOPASCALS MAXIMUM WINDS FOUR SIX 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 031200 TWO FIVE POINT NINE NORTH ONE TWO SEVEN POINT FIVE EAST AT 041200 THREE ZERO POINT SIX NORTH ONE TWO SEVEN POINT SEVEN EAST AND AT 051200 THREE FIVE POINT ONE NORTH ONE THREE FOUR POINT THREE EAST ALL SHIPS WITHIN TYPHOON AREA ARE REQUESTED TO SEND THREE HOURLY WEATHER REPORT TO PHILIPPINE ATMOSPHERIC GEOPHYSICAL AND ASTRONOMICAL SERVICES ADMINISTRATION PD PAGASA=