Weather Forecast for Local Aviation

I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     SEV TURB AND SEV GUSTS.
     HURRICANE FORCE WINDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     SEVERE TROPICAL STORM HIGOS HAS INTENSIFIED INTO
     A TYPHOON. AT 1 A.M., HIGOS WAS LOCATED AT 21.5
     DEGREES NORTH, 113.9 DEGREES EAST. IT IS
     FORECAST TO MOVE NORTHWEST OR WEST-NORTHWEST AT
     ABOUT 11 KNOTS TOWARDS THE VICINITY OF THE COAST
     TO THE WEST OF THE PEARL RIVER ESTUARY.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  090/60-65
                  TEMPO VRB/70G80 IN TS
       OFFSHORE:  100/60-65 OCNL 70G80                 24-29
   B.   2000 FT:  100/65 OCNL 70G80                    23
   C.   5000 FT:  110/60                               18
   D.  10000 FT:  120/50                               12
   E.  18000 FT:  100/45                               MS1
   F.  24000 FT:  110/40                               MS11
   G.  30000 FT:  090/35                               MS23
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      CLOUDY WITH OCCASIONAL HEAVY SQUALLY SHOWERS
      AND THUNDERSTORMS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT SCT 2500 FT. 
      TEMPO FEW CB 800 FT SCT 2000 FT BKN 4000 FT
   K. VISIBILITY    : 10 KM, TEMPO 3000 M IN SHOWERS, TEMPO 1500 M IN TS.
   L. 0 DEG. C LEVEL: 17000 FT      10 DEG. C LEVEL(S) : 11600 FT
   M. TURBULENCE    : SEV.
   N. SEA STATE     : 10.0-14.0 M   SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     FRESH TO STRONG SOUTHEASTERLY WINDS, GALE  TO
     STORM FORCE OFFSHORE AND ON HIGHGROUNDS AT
     FIRST.  CLOUDY WITH OCCASIONAL HEAVY SQUALLY
     SHOWERS AND 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.