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.
     SEVERE TROPICAL STORM VAMCO HAS WEAKENED INTO A
     TROPICAL STORM.
     AT 7 P.M.., VAMCO WAS LOCATED AT 18.1 DEGREES
     NORTH, 105.8 DEGREES EAST.  IT IS FORECAST TO
     MOVE WEST AT ABOUT  8 KNOTS TOWARDS THE CENTRAL
     PART OF VIETNAM AND DISSIPATE.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1855 TO 0400 HKT:
             WIND (DIRECTION/KNOT)          TEMPERATURE (DEG. C)
   A.   SURFACE:  050/10-15
       OFFSHORE:  080/20-25, OCNL 30                   24-22
   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       : 
      MAINLY CLOUDY 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. SUNNY PERIODS.=

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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.