Weather Forecast for Local Aviation

I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     TROPICAL STORM HAGUPIT HAS INTENSIFIED INTO A
     SEVERE TROPICAL STORM. AT 3 A.M., HAGUPIT WAS WAS LOCATED NEAR 24.3
     DEGREES NORTH, 123.6 DEGREES EAST. IT IS FORECAST TO MOVE NORTHWEST AT ABOUT 10 KNOTS
     ACROSS THE SEAS EAST OF TAIWAN.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0400 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  120/10-15
                  TEMPO VRB/15G25 IN TS
       OFFSHORE:  120/15-20                            26-30
   B.   2000 FT:  140/15-20                            23
   C.   5000 FT:  160/20                               19
   D.  10000 FT:  160/20                               13
   E.  18000 FT:  110/30                               MS1
   F.  24000 FT:  100/25                               MS10
   G.  30000 FT:  090/10                               MS21
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY CLOUDY WITH OCCASIONAL 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 2000 M IN TS.
   L. 0 DEG. C LEVEL: 17500 FT      10 DEG. C LEVEL(S) : 11400 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS.  MOD OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 2.0-2.5 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE SOUTHEASTERLY WINDS.MAINLY CLOUDY WITH
     OCCASIONAL 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.