Weather Forecast for Local Aviation

I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS, SEV TURB AND SEV GUSTS.  GALE
     FORCE WINDS ON HIGH GROUNDS. ISOL CUNIM/TS AND
     ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AT 5 P.M., TROPICAL STORM NURI WAS CENTRED NEAR
     19.9 DEGREES NORTH AND 114.6 DEGREES EAST. IT IS
     FORECAST TO MOVE NORTHWEST AT ABOUT 12 KNOTS
     ACROSS THE NORTHERN PART OF THE SOUTH CHINA SEA,
     EDGING CLOSER TO THE COAST OF WESTERN GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  110/20-25G35
                  TEMPO VRB/25G35 IN TS
       OFFSHORE:  110/25-30G40                         33-26
   B.   2000 FT:  120/30-35G45                         23
   C.   5000 FT:  120/35                               20
   D.  10000 FT:  130/30                               14
   E.  18000 FT:  130/30                               MS1
   F.  24000 FT:  130/25                               MS11
   G.  30000 FT:  130/25                               MS25
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY CLOUDY. OCCASIONAL SQUALLY SHOWERS AND
      THUNDERSTORMS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT SCT 2500 FT.
      TEMPO FEW CB 1000 FT  SCT 1500 FT BKN 4000 FT.
   K. VISIBILITY    : 10 KM.  TEMPO 3000M IN SHOWERS. 
                      TEMPO 2000 M IN TS.
   L. 0 DEG. C LEVEL: 17500 FT      10 DEG. C LEVEL(S) : 12600 FT
   M. TURBULENCE    : SEV.
   N. SEA STATE     : 3.0-4.5 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     STRONG EAST TO SOUTHEASTERLY WINDS, OCCASIONALLY
     GALE ON  HIGH GROUNDS.  
     MAINLY CLOUDY. OCCASIONAL 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.