Tropical Storm Mekkhala ( internationally called : 0816 , JTWC designation : 20W ) was the 16th Tropical Storm of the 2008 Pacific typhoon season by the Japan Meteorological Agency who are the Regional Specialized Meteorological Centre for the North Western Pacific Ocean . Tropical Storm Mekkhala ( international designation : 0816 , JTWC designation : 20W ) was recognized as the 16th Tropical Storm of the 2008 Pacific typhoon season by the Japan Meteorological Agency who are the Regional Specialized Meteorological Centre for the North Western Pacific Ocean .