Weather Forecast for Local Aviation

I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB. ISOL CUNIM/TS AND
     ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AT 9 A.M., THE TROPICAL DEPRESSION OVER THE
     NORTHERN PART OF THE SOUTH CHINA SEA WAS CENTRED
     NEAR 20.8 DEGREES NORTH, 113.2 DEGREES EAST AND
     IS FORECAST TO REMAIN ALMOST STATIONARY AT
     FIRST, THEN MOVE NORTHWEST OR NORTH-NORTHWEST
     SLOWLY LATER, EDGING CLOSER TO THE COAST OF
     WESTERN GUANGDONG GRADUALLY.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND (DIRECTION/KNOT)          TEMPERATURE (DEG. C)
   A.   SURFACE:  090/15-20, OCNL 25
                  TEMPO VRB/25G35 IN TS
       OFFSHORE:  110/20-25, OCNL 30                   26-29
   B.   2000 FT:  100/25-30                            23
   C.   5000 FT:  110/25                               20
   D.  10000 FT:  130/25                               12
   E.  18000 FT:  120/20                               MS1
   F.  24000 FT:  130/20                               MS11
   G.  30000 FT:  130/20                               MS22
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      CLOUDY WITH HEAVY SQUALLY SHOWERS AND
      THUNDERSTORMS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT SCT 2500 FT
      TEMPO FEW CB 800 FT SCT 1500 FT BKN 4000 FT
   K. VISIBILITY    : 10 KM. TEMPO 3000 M IN SHOWERS. TEMPO 2000 M IN TS.
   L. 0 DEG. C LEVEL: 17000 FT      10 DEG. C LEVEL(S) : 11000 FT
   M. TURBULENCE    : MOD TO SEV
   N. SEA STATE     : 3.0-4.0 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH EAST TO SOUTHEASTERLY WINDS,
     STRONG OFFSHORE.
     CLOUDY WITH 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.