Weather Forecast for Local Aviation

I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE AREA OF LOW PRESSURE OVER THE NORTHEASTERN
     PART OF THE SOUTH CHINA SEA HAS INTENSIFIED INTO
     A TROPICAL DEPRESSION. AT 10 P.M., THE TROPICAL
     DEPRESSION WAS LOCATED AT 21.7 DEGREES NORTH,
     116.5 DEGREES EAST. IT IS FORECAST TO MOVE
     NORTH-NORTHWEST AT ABOUT 8 KT IN THE GENERAL
     DIRECTION TO THE COAST OF GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 2245 TO 0400 HKT:
             WIND (DIRECTION/KNOT)          TEMPERATURE (DEG. C)
   A.   SURFACE:  VRB/5-10
                  TEMPO VRB/15G30 IN TS                31-26
   B.   2000 FT:  070/10                               22
   C.   5000 FT:  020/10                               19
   D.  10000 FT:  020/10                               11
   E.  18000 FT:  040/15                               MS2
   F.  24000 FT:  090/15                               MS11
   G.  30000 FT:  070/15                               MS22
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      CLOUDY WITH SHOWERS AND SQUALLY THUNDERSTORMS.
      SHOWERS WILL BE HEAVY AT TIMES.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT SCT 4000 FT
      TEMPO FEW CB 800 FT SCT 1500 FT BKN 4000 FT
   K. VISIBILITY    : 10 KM, TEMPO 3000 M IN SHOWERS, TEMPO 1500 M IN TS.
   L. 0 DEG. C LEVEL: 16500 FT      10 DEG. C LEVEL(S) : 10200 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS
   N. SEA STATE     : 0.5-1.0 M     SEA TEMPERATURE    : 26 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EAST TO SOUTHEASTERLY WINDS, FRESH
     OFFSHORE.
     CLOUDY WITH SHOWERS AND SQUALLY THUNDERSTORMS.
     SHOWERS WILL BE HEAVY AT TIMES.=

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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.