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 :
     AT 1 A.M., SEVERE TROPICAL STORM KOMPASU WAS LOCATED AT 18.9 DEGREES NORTH, 
     120.6 DEGREES EAST. IT IS FORECAST TO MOVE WEST AT ABOUT 14
     KNOTS INTO THE NORTHEASTERN PART OF THE SOUTH CHINA SEA.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND (DIRECTION/KNOT)          TEMPERATURE (DEG. C)
   A.   SURFACE:  010/15-20, OCNL 25
       OFFSHORE:  010/20-25, OCNL 30G40                24-27
   B.   2000 FT:  010/30-35, OCNL 40G50                23
   C.   5000 FT:  040/35                               18
   D.  10000 FT:  030/30                               14
   E.  18000 FT:  050/40                               2
   F.  24000 FT:  030/40                               MS10
   G.  30000 FT:  040/25                               MS22
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      3700-4200 FT
   I. WEATHER       : 
      MAINLY FINE, BECOMING CLOUDY.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2500 FT
   K. VISIBILITY    : 10 KM
   L. 0 DEG. C LEVEL: 19000 FT      10 DEG. C LEVEL(S) : 11400 FT
   M. TURBULENCE    : MOD TO SEV
   N. SEA STATE     : 3.0-5.0 M     SEA TEMPERATURE    : 28 DEG
IV.  FURTHER OUTLOOK: 
     STRONG NORTH TO NORTHEASTERLY WINDS, GALES OFFSHORE AND ON HIGH GROUND.
     CLOUDY WITH SQUALLY SHOWERS.=

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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.