WTPH20 RPMM 171200 TTT GALE WARNING 12 AT 1200 17 JANUARY TROPICAL STORM {MEKKHALA} (1501) DOWNGRADED FROM SEVERE TROPICAL STORM WAS ESTIMATED BASED ON ALL AVAILABLE DATA AT ONE TWO POINT FOUR NORTH ONE TWO FIVE POINT ONE EAST FORECAST TO MOVE NORTHWEST AT ZERO FOUR METERS PER SECOND ROUGH TO HIGH SEAS WITHIN TWO ZERO ZERO KILOMETER RADIUS FROM THE CENTER ESTIMATED CENTRAL PRESSURE NINE NINE ONE FOUR HECTOPASCALS MAXIMUM WINDS TWO THREE METERS PER SECOND NEAR THE CENTER ONE THREE METERS PER SECOND WITHIN TWO ZERO ZERO KILOMETER RADIUS FROM THE CENTER FORECAST POSITIONS AT 181200 ONE FIVE POINT ZERO NORTH ONE TWO TWO POINT SEVEN EAST AT 191200 ONE EIGHT POINT SIX NORTH ONE TWO TWO POINT SEVEN EAST AND AT 201200 TWO ONE POINT ONE NORTH ONE TWO FOUR POINT FOUR EAST ALL SHIPS WITHIN STORM AREA ARE REQUESTED TO SEND THREE HOURLY WEATHER REPORT TO PHILIPPINE ATMOSPHERIC GEOPHYSICAL AND ASTRONOMICAL SERVICES ADMINISTRATION PD PAGASA=