Weather Forecast for Local Aviation

I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     SEV TURB AND SEV GUSTS.  GALE FORCE WINDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AN INTENSE NORTHEAST MONSOON IS AFFECTING
     SOUTHERN CHINA.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND (DIRECTION/KNOT)          TEMPERATURE (DEG. C)
   A.   SURFACE:  010/20-25G35
       OFFSHORE:  010/30-35G45                         13-17
   B.   2000 FT:  010/35-40G50                         8
   C.   5000 FT:  360/20-25                            11
   D.  10000 FT:  290/20                               MS1
   E.  18000 FT:  270/40                               MS2
   F.  24000 FT:  270/40                               MS16
   G.  30000 FT:  280/45                               MS29
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      3100-4400 FT.
   I. WEATHER       : 
      MAINLY CLOUDY. SUNNY PERIODS DURING THE DAY.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 3500 FT BKN 10000 FT.
   K. VISIBILITY    : 10 KM.
   L. 0 DEG. C LEVEL: 10000, 11000, 17000 FT  10 DEG. C LEVEL(S) : 1400, 3600, 5400 FT
   M. TURBULENCE    : MOD TO SEV
   N. SEA STATE     : 4.0-6.0 M     SEA TEMPERATURE    : 19 DEG
IV.  FURTHER OUTLOOK: 
     FRESH TO STRONG NORTHERLY WINDS, OCCASIONALLY
     GALE FORCE OFFSHORE AND ON HIGH GROUND.
     MAINLY CLOUDY.=

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Note: The forecast could be updated before the next issue time 
whenever there is newly expected occurrence or non-occurrence 
of significant weather as described below which may be hazardous 
to aircraft within 100-km radius of Hong Kong:

(a) Change of the tropical cyclone category
(b) Strong, Gale, Storm, and Hurricane force winds
(c) Thunderstorm/CBs
(d) Severe gusts
(e) Severe turbulence
(f) Significant low stratus
(g) Fog or thick haze/sandstorm/duststorm 
    causing significant reduction of visibility
(h) Volcanic ash
(i) Radioactive cloud
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Aviation Weather Observation and Forecast Information for Hong Kong International Airport

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