Weather Forecast for Local Aviation

I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AN EASTERLY AIRSTREAM IS AFFECTING THE COAST OF
     SOUTHERN CHINA. MEANWHILE, A COLD FRONT HAS
     FORMED OVER CENTRAL CHINA. IT IS MOVING
     SOUTHWARDS GRADUALLY AND WILL MOVE ACROSS THE
     COAST OF GUANGDONG TOMORROW AFTERNOON.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1300 TO 2300 HKT:
             WIND (DIRECTION/KNOT)          TEMPERATURE (DEG. C)
   A.   SURFACE:  090/10
       OFFSHORE:  090/10-15, OCNL 20                   29-24
   B.   2000 FT:  100/15-20                            21
   C.   5000 FT:  170/10                               16
   D.  10000 FT:  230/10                               11
   E.  18000 FT:  250/20                               MS2
   F.  24000 FT:  020/5                                MS11
   G.  30000 FT:  210/15                               MS24
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      SUNNY PERIODS IN THE AFTERNOON. MAINLY CLOUDY
      TONIGHT.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 3000 FT
   K. VISIBILITY    : 10 KM..
   L. 0 DEG. C LEVEL: 17000 FT      10 DEG. C LEVEL(S) : 10200 FT
   M. TURBULENCE    : MOD OFFSHORE AND NEAR HILLS
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EASTERLY WINDS, OCCASIONALLY FRESH
     OFFSHORE.
     MAINLY CLOUDY.=

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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.