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 TROUGH OF LOW PRESSURE OVER THE NORTHERN
     PART OF THE SOUTH CHINA SEA IS BRINGING SHOWERS
     TO THE REGION. MEANWHILE, THE BAND OF CLOUDS
     AFFECTING THE COAST OF GUANGDONG IS THINNING OUT
     GRADUALLY.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND (DIRECTION/KNOT)          TEMPERATURE (DEG. C)
   A.   SURFACE:  320/10
                  TEMPO VRB/20G30 IN TS
       OFFSHORE:  320/10-15                            26-31
   B.   2000 FT:  320/10-15                            22
   C.   5000 FT:  250/15                               18
   D.  10000 FT:  260/20                               11
   E.  18000 FT:  280/15                               MS2
   F.  24000 FT:  260/10                               MS12
   G.  30000 FT:  300/10                               MS22
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      1800-2000 FT
   I. WEATHER       : 
      MAINLY CLOUDY WITH SUNNY INTERVALS. A FEW
      ISOLATED SHOWERS AND THUNDERSTORMS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1000 FT SCT 4000 FT
      TEMPO FEW CB 800  FT SCT 2000 FT BKN 6000 FT.
   K. VISIBILITY    : 9 KM. TEMPO 4000 M IN SHOWERS. TEMPO 2500 M IN TS.
   L. 0 DEG. C LEVEL: 17000 FT      10 DEG. C LEVEL(S) : 11200 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     LIGHT TO MODERATE NORTHWESTERLY WINDS.
     MAINLY CLOUDY WITH ISOLATED 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.