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 :
     A BROAD TROUGH OF LOW PRESSURE IS BRINGING
     UNSETTLED WEATHER TO THE NORTHERN PART OF THE
     SOUTH CHINA SEA AND THE SOUTH CHINA COASTAL
     AREAS.
     AT 11 P.M. LAST NIGHT, TYPHOON HAGUPIT WAS
     LOCATED NEAR 27.2 DEGREES NORTH, 121.4 DEGREES
     EAST. IT IS FORECAST TO MOVE NORTH-NORTHWEST AT
     ABOUT 12 KNOTS ACROSS THE EAST CHINA SEA TOWARDS
     THE COAST OF ZHEJIANG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  160/5-10
                  TEMPO VRB/15G25 IN TS
       OFFSHORE:  160/15                               26-30
   B.   2000 FT:  180/10                               23
   C.   5000 FT:  200/10                               19
   D.  10000 FT:  250/15                               11
   E.  18000 FT:  100/15                               MS1
   F.  24000 FT:  100/15                               MS10
   G.  30000 FT:  120/15                               MS23
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY CLOUDY WITH OCCASIONAL SHOWERS AND
      ISOLATED THUNDERSTORMS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT SCT 3000 FT 
      TEMPO FEW CB 1200 FT SCT 2500 FT BKN 4000 FT
   K. VISIBILITY    : 8 KM, TEMPO 3500 M IN SHOWERS, TEMPO 2000 M IN TS.
   L. 0 DEG. C LEVEL: 17500 FT      10 DEG. C LEVEL(S) : 10600 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE SOUTHERLY WINDS.
     MAINLY CLOUDY WITH OCCASIONAL SHOWERS AND
     ISOLATED 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.