WTPH20 RPMM 120600 TTT GALE WARNING 05 AT 0600 12 FEBRUARY TROPICAL STORM {SANBA} (1802) WAS ESTIMATED BASED ON ALL AVAILABLE DATA AT ZERO SEVEN POINT ONE NORTH ONE THREE ZERO POINT SEVEN EAST FORECAST TO MOVE WEST NORTHWEST AT ZERO SIX METERS PER SECOND ROUGH TO VERY ROUGH SEAS WITHIN FOUR ZERO ZERO KILOMETER RADIUS NORTH SEMICIRCLE ONE FIVE ZERO KILOMETER RADIUS ELSEWHERE ESTIMATED CENTRAL PRESSURE NINE NINE EIGHT HECTOPASCALS MAXIMUM WINDS ONE EIGHT METERS PER SECOND NEAR THE CENTER ONE THREE METERS PER SECOND WITHIN FOUR ZERO ZERO KILOMETER RADIUS NORTH SEMICIRCLE ONE FIVE ZERO KILOMETER RADIUS ELSEWHERE FORECAST POSITIONS AT 130600 ZERO EIGHT POINT FIVE NORTH ONE TWO FIVE POINT FIVE EAST AT 140600 ZERO EIGHT POINT SEVEN NORTH ONE ONE NINE POINT FIVE EAST AT 150600 ZERO NINE POINT EIGHT NORTH ONE ONE FIVE POINT FOUR EAST AND AT 160600 ONE ZERO POINT SIX NORTH ONE ONE TWO POINT SIX EAST ALL SHIPS WITHIN STORM AREA ARE REQUESTED TO SEND THREE HOURLY WEATHER REPORT TO PHILIPPINE ATMOSPHERIC GEOPHYSICAL AND ASTRONOMICAL SERVICES ADMINISTRATION PD PAGASA=