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 :
     TROPICAL DEPRESSION CHABA HAS INTENSIFIED INTO A
     TROPICAL STORM.
     AT NOON, CHABA WAS LOCATED AT 16.0 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 1300 TO 2300 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                   30-26
   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    : 27 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.