WTPH20 RPMM 130000 TTT WARNING 08 AT 0000 13 FEBRUARY TROPICAL DEPRESSION {SANBA} (1802) DOWNGRADED FROM TROPICAL STORM WAS ESTIMATED BASED ON ALL AVAILABLE DATA AT ZERO NINE POINT ONE NORTH ONE TWO SIX POINT SIX EAST FORECAST TO MOVE WEST NORTHWEST AT ZERO SEVEN METERS PER SECOND MODERATE TO ROUGH SEAS WITHIN TWO FIVE ZERO KILOMETER RADIUS NORTH SEMICIRCLE ONE ZERO ZERO KILOMETER RADIUS ELSEWHERE ESTIMATED CENTRAL PRESSURE ONE ZERO ZERO TWO HECTOPASCALS MAXIMUM WINDS ONE FIVE METERS PER SECOND NEAR THE CENTER ONE THREE METERS PER SECOND WITHIN TWO FIVE ZERO KILOMETER RADIUS NORTH SEMICIRCLE ONE ZERO ZERO KILOMETER RADIUS ELSEWHERE FORECAST POSITIONS AT 140000 ZERO NINE POINT TWO NORTH ONE TWO ZERO POINT EIGHT EAST AT 150000 ZERO NINE POINT EIGHT NORTH ONE ONE SIX POINT SIX EAST AND AT 160000 ONE ONE POINT THREE NORTH ONE ONE THREE POINT ZERO EAST ALL SHIPS WITHIN TROPICAL DEPRESSION AREA ARE REQUESTED TO SEND THREE HOURLY WEATHER REPORT TO PHILIPPINE ATMOSPHERIC GEOPHYSICAL AND ASTRONOMICAL SERVICES ADMINISTRATION PD PAGASA=