Weather Forecast for Local Aviation

I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS, SEV TURB AND SEV GUSTS. ISOL
     CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE TROPICAL DEPRESSION OVER THE CENTRAL PART OF
     THE SOUTH CHINA SEA WAS NAMED AS CHABA.
     AT 10 A.M., CHABA WAS LOCATED AT 15.7 DEGREES
     NORTH, 115.1 DEGREES EAST. IT IS FORECAST TO
     MOVE NORTH-NORTHWEST AT ABOUT 6 KNOTS IN THE
     GENERAL DIRECTION OF THE COAST OF WESTERN
     GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND (DIRECTION/KNOT)          TEMPERATURE (DEG. C)
   A.   SURFACE:  090/10-15
                  BECMG  090/20 OCNL 25G35
                  TEMPO VRB/25G35 IN TS
       OFFSHORE:  090/15-20
                  BECMG 090/20-25G35                   27-30
   B.   2000 FT:  090/20-25G35
                  BECMG 090/25-30G40                   22
   C.   5000 FT:  100/25                               20
   D.  10000 FT:  100/20                               12
   E.  18000 FT:  080/20                               MS3
   F.  24000 FT:  070/15                               MS12
   G.  30000 FT:  100/10                               MS27
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY CLOUDY WITH SQUALLY SHOWERS AND
      THUNDERSTORMS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1000 FT SCT 2000 FT
      TEMPO FEW CB 600 FT SCT 1200 FT BKN 4000 FT
   K. VISIBILITY    : 10 KM, TEMPO 2500 M IN SHOWERS, TEMPO 1000 M IN TS.
   L. 0 DEG. C LEVEL: 17500 FT      10 DEG. C LEVEL(S) : 12000 FT
   M. TURBULENCE    : MOD TO SEV
   N. SEA STATE     : 2.0-4.0 M     SEA TEMPERATURE    : 28 DEG
IV.  FURTHER OUTLOOK: 
     FRESH TO STRONG EASTERLY WINDS.
     MAINLY CLOUDY WITH SQUALLY SHOWERS AND
     THUNDERSTORMS.=

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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.