Weather Forecast for Local Aviation

I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE PRESSURE OVER THE COAST OF SOUTHEASTERN
     CHINA IS RISING. A FRESH EASTERLY AIRSTREAM IS
     EXPECTED TO REACH THE COASTAL AREAS OF GUANGDONG
     TONIGHT. MEANWHILE, A TROUGH OF LOW PRESSURE IS
     BRINGING UNSETTLED WEATHER TO THE COASTAL AREAS
     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:  VRB/5
                  BECMG 090/10-15
       OFFSHORE:  020/10
                  BECMG 090/15-20                      30-25
   B.   2000 FT:  290/10
                  BECMG 090/15-20                      22
   C.   5000 FT:  230/10                               19
   D.  10000 FT:  270/10                               10
   E.  18000 FT:  270/20                               MS4
   F.  24000 FT:  270/25                               MS15
   G.  30000 FT:  260/30                               MS27
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY FINE WITH LOCALIZED HAZE.
      BECOMING CLOUDY WITH A FEW SHOWERS TONIGHT.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT SCT 2500 FT
   K. VISIBILITY    : 9 KM, TEMPO 4000 M IN SHOWERS OR HAZE
   L. 0 DEG. C LEVEL: 16000 FT      10 DEG. C LEVEL(S) : 10000 FT
   M. TURBULENCE    : MOD OFFSHORE AND  NEAR HILLS
   N. SEA STATE     : 1.5-2.0 M     SEA TEMPERATURE    : 25 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH EASTERLY WINDS.
     CLOUDY WITH A FEW 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.