WWHK82 VHHH 180600 40:1:31:11:01:00 HONG KONG METEOROLOGICAL SERVICE PROVIDES THE FOLLOWING WARNING/INFORMATION FOR THE SOUTH CHINA SEA. WARNINGS NIL. SYNOPSIS (180600UTC) AND 24-HOUR FORECAST UNSETTLED WEATHER IS AFFECTING NORTHERN AND CENTRAL PARTS OF THE SOUTH CHINA SEA (SCS). SIGNIFICANT SWELL/HIGH SEAS NIL. THUNDERSTORMS/SEVERE WEATHER SCATTERED SQUALLY (SQ) SHOWERS (SH) AND THUNDERSTORMS (TS) OVER NORTHERN AND CENTRAL PARTS OF THE SCS. ISOLATED SQ SH AND TS OVER GULF OF TONKIN, SOUTHERN PART OF THE SCS, SEAS SOUTH OF THE PHILIPPINES, SEAS NEAR MALAYSIA AND GULF OF THAILAND. SEA FOG/REDUCED VISIBILITY VISIBILITY DOWN TO 2000 M IN SQ SH AND TS.