Weather Forecast for Local Aviation

I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AT 11 P.M., THE TROPICAL DEPRESSION NEAR LUZON
     WAS CENTRED NEAR 21.2 DEGREES NORTH, 121.6
     DEGREES EAST AND IS FORECAST TO MOVE
     WEST-NORTHWEST AT ABOUT 14 KNOTS ACROSS THE
     LUZON STRAIT. 
     MEANWHILE, THE TROPICAL DEPRESSION OVER THE
     CENTRAL PART OF THE SOUTH CHINA SEA WAS CENTRED
     NEAR 15.4 DEGREES NORTH, 112.9 DEGREES EAST AND
     IS FORECAST TO MOVE NORTHWEST AT ABOUT 5 KNOTS
     TOWARDS THE VICINITY OF HAINAN ISLAND.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND (DIRECTION/KNOT)          TEMPERATURE (DEG. C)
   A.   SURFACE:  100/10-15
       OFFSHORE:  100/10-15, OCNL 20                   28-32
   B.   2000 FT:  100/20                               25
   C.   5000 FT:  100/20                               19
   D.  10000 FT:  110/20                               13
   E.  18000 FT:  090/25                               MS2
   F.  24000 FT:  090/30                               MS12
   G.  30000 FT:  100/40                               MS23
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY CLOUDY WITH A FEW SHOWERS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT SCT 3000 FT 
      TEMPO FEW CB 1000 FT SCT 2000 FT
   K. VISIBILITY    : 10 KM. TEMPO 4000 M IN SHOWERS.
   L. 0 DEG. C LEVEL: 17000 FT      10 DEG. C LEVEL(S) : 11400 FT
   M. TURBULENCE    : MOD OFFSHORE AND NEAR HILLS
   N. SEA STATE     : 1.0-2.0 M     SEA TEMPERATURE    : 29 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EASTERLY WINDS, FRESH OFFSHORE.
     MAINLY CLOUDY WITH A FEW SQUALLY SHOWERS AND
     ISOLATED 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.