WWHK82 VHHH 250600 40:1:31:11:01:00 HONG KONG METEOROLOGICAL SERVICE PROVIDES THE FOLLOWING WARNING/INFORMATION FOR THE SOUTH CHINA SEA. WARNINGS NIL. SYNOPSIS (250600UTC) AND 24-HOUR FORECAST LOW VISIBILITY CONDITIONS ARE AFFECTING THE EAST CHINA SEA (ECS), TAIWAN STRAIT, SEAS NEAR KWANGTUNG, GULF OF TONKIN AND SEAS EAST OF VIETNAM. SIGNIFICANT SWELL/HIGH SEAS NIL. THUNDERSTORMS/SEVERE WEATHER ISOLATED SQUALLY (SQ) SHOWERS (SH) AND THUNDERSTORMS (TS) OVER SEAS NEAR SOUTHERN PART OF THE PHILIPPINES AND SEAS NEAR BORNEO. SEA FOG/REDUCED VISIBILITY VISIBILITY DOWN TO 2000 M IN MIST PATCHES OR SOME HAZE OVER THE ECS, TAIWAN STRAIT, SEAS NEAR KWANGTUNG, GULF OF TONKIN AND SEAS EAST OF VIETNAM. VISIBILITY DOWN TO 4000 M IN SQ SH AND TS.