Tropical Depression 01W intensified into Tropical Storm Mekkhala on Wednesday.  At 11:00 p.m. EST on Wednesday the center of Tropical Storm Mekkhala was located at latitude 11.5°N and longitude 133.8°E which put it about 370 miles north-northwest of Palau and about 820 miles east of Manila, Philippines.  Mekkhala was moving toward the west at 16 m.p.h.  The maximum sustained wind speed was 40 m.p.h. and there were gusts to 60 m.p.h.   The minimum surface pressure was 1000 mb.

Although there are still moderate wind speeds in the upper levels, the wind shear decreased slightly.  That allowed more thunderstorms to develop closer to the center of circulation and the system became more organized.  A subtropical ridge northeast of Mekkhala will continue to produce southeasterly winds over the top of the circulation.  Moderate wind shear will limit intensification.  However, Mekkhala will be moving over Warm Sea Surface Temperatures and so some intensification is possible during the next several days.

The subtropical ridge is expected to strengthen and steer Mekkhala westward toward the Philippines.  The tropical storm could be approaching the central and northern Philippines in 48 to 72 hours.  The main threats appear to be locally heavy rainfall, flooding and mudslides.