WTPH20 RPMM 170000 TTT STORM WARNING 10 AT 0000 17 JANUARY SEVERE TROPICAL STORM {MEKKHALA} (1501) WAS ESTIMATED BASED ON ALL AVAILABLE DATA AT ONE ONE POINT THREE NORTH ONE TWO SEVEN POINT ONE EAST FORECAST TO MOVE NORTHWEST AT ZERO FOUR METERS PER SECOND ROUGH TO VERY HIGH SEAS WITHIN TWO ZERO ZERO KILOMETER RADIUS FROM THE CENTER ESTIMATED CENTRAL PRESSURE NINE EIGHT FOUR HECTOPASCALS MAXIMUM WINDS TWO EIGHT METERS PER SECOND NEAR THE CENTER ONE THREE METERS PER SECOND WITHIN TWO ZERO ZERO KILOMETER RADIUS FROM THE CENTER FORECAST POSITIONS AT 180000 ONE THREE POINT ONE NORTH ONE TWO THREE POINT SEVEN EAST AT 190000 ONE SIX POINT ONE NORTH ONE TWO ONE POINT NINE EAST AND AT 200000 ONE NINE POINT TWO NORTH ONE TWO THREE POINT SEVEN EAST ALL SHIPS WITHIN STORM AREA ARE REQUESTED TO SEND THREE HOURLY WEATHER REPORT TO PHILIPPINE ATMOSPHERIC GEOPHYSICAL AND ASTRONOMICAL SERVICES ADMINISTRATION PD PAGASA=