I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     FOG.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     A REPLENISHMENT OF THE NORTHEAST MONSOON HAS
     REACHED THE SOUTH CHINA COASTAL AREAS THIS
     AFTERNOON.
     
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  030/10-15
       OFFSHORE:  030/15-20                            14-12
   B.   2000 FT:  030/15-20                            11
   C.   5000 FT:  200/15                               12
   D.  10000 FT:  280/25                               8
   E.  18000 FT:  260/40                               MS7
   F.  24000 FT:  250/45                               MS18
   G.  30000 FT:  250/55                               MS33
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      1700-2500 FT
   I. WEATHER       : 
      MAINLY CLOUDY WITH ONE OR TWO RAIN PATCHES.
      LOCALISED MIST/HAZE. COASTAL FOG.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 600 FT  SCT 1500 FT BKN 5000 FT
   K. VISIBILITY    : 5 KM. TEMPO 1500 M IN MIST/HAZE. TEMPO 800 M IN FOG.
   L. 0 DEG. C LEVEL: 16000 FT      10 DEG. C LEVEL(S) : 5800 FT
   M. TURBULENCE    : MOD OFFSHORE AND  NEAR HILLS
   N. SEA STATE     : 2.0-2.5 M     SEA TEMPERATURE    : 16 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH NORTHEASTERLY WINDS.   MAINLY
     CLOUDY WITH ONE OR TWO RAIN PATCHES. COASTAL FOG.=

Aviation Weather Observation and Forecast Information for Hong Kong International Airport

To know more about clouds, please see Commonly observed clouds in Hong Kong.