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 :
     AT 4 P.M., TYPHOON IN-FA WAS CENTRED NEAR 27.5
     DEGREES NORTH, 124.1 DEGREES EAST AND IS
     FORECAST TO MOVE NORTH-NORTHWEST AT ABOUT 8
     KNOTS IN THE GENERAL DIRECTION OF THE COAST OF
     EASTERN CHINA . MEANWHILE, TROPICAL DEPRESSION
     CEMPAKA WAS CENTRED NEAR 18.8 DEGREES NORTH,
     106.5 DEGREES EAST AND IS FORECAST TO MOVE SOUTH
     SLOWLY AT FIRST, AND THEN TURN EASTWARDS LATER
     IN THE GENERAL DIRECTION OF HAINAN ISLAND.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND (DIRECTION/KNOT)          TEMPERATURE (DEG. C)
   A.   SURFACE:  270/5-10
                  TEMPO VRB/20G30 IN TS
       OFFSHORE:  270/10                               34-27
   B.   2000 FT:  300/10                               26
   C.   5000 FT:  350/10                               20
   D.  10000 FT:  340/5                                12
   E.  18000 FT:  340/10                               0
   F.  24000 FT:  320/10                               MS10
   G.  30000 FT:  270/5                                MS23
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      400-700 FT.
   I. WEATHER       : 
      MAINLY CLOUDY WITH A FEW SHOWERS AND ISOLATED
      SQUALLY THUNDERSTORMS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT SCT 3000 FT.
      TEMPO FEW CB 1000 FT SCT 2500 FT BKN 4000 FT.
   K. VISIBILITY    : 8 KM. TEMPO 4000 M IN SHOWERS.
TEMPO 2000 M IN TS.
   L. 0 DEG. C LEVEL: 18000 FT      10 DEG. C LEVEL(S) : 11200 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS
   N. SEA STATE     : 0.5-1.0 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     LIGHT TO MODERATE WESTERLY WINDS.
     MAINLY CLOUDY WITH A FEW SHOWERS AND ISOLATED
     SQUALLY 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.