Weather Forecast for Local Aviation

I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE NORTHEAST MONSOON IS AFFECTING THE SOUTH
     CHINA COASTAL AREAS.
     AT NOON., SEVERE TROPICAL STROM VAMCO WAS
     LOCATED AT 17.4 DEGREES NORTH, 107.0 DEGREES
     EAST.  IT IS FORECAST TO MOVE WEST-NORTHWEST AT
     ABOUT  8 KNOTS TOWARDS THE CENTRAL PART OF
     VIETNAM AND WEAKEN.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1300 TO 2300 HKT:
             WIND (DIRECTION/KNOT)          TEMPERATURE (DEG. C)
   A.   SURFACE:  050/10-15
       OFFSHORE:  080/20-25, OCNL 30                   26-22
   B.   2000 FT:  080/20-25                            19
   C.   5000 FT:  120/20                               15
   D.  10000 FT:  150/5                                10
   E.  18000 FT:  130/5                                MS5
   F.  24000 FT:  240/10                               MS15
   G.  30000 FT:  240/30                               MS27
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      2200-3000 FT
   I. WEATHER       : 
      CLOUDY PERIODS WITH A FEW RAIN PATCHES.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT  SCT 4000 FT BKN 8000 FT
   K. VISIBILITY    : 10 KM. TEMPO 4000 M IN RAIN
   L. 0 DEG. C LEVEL: 15500 FT      10 DEG. C LEVEL(S) : 10000 FT
   M. TURBULENCE    : MOD TO SEV OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 3.0-4.5 M     SEA TEMPERATURE    : 23 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH EAST TO NORTHEASTERLY WINDS,
     OCCASIONALLY STRONG OFFSHORE. MAINLY CLOUDY WITH
     A FEW RAIN PATCHES.=

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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.