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 8 A.M , TYPHOON IN-FA WAS CENTRED NEAR 26.6
     DEGREES NORTH, 124.8 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 19.5 DEGREES NORTH,
     107.0 DEGREES EAST AND IS FORECAST TO MOVE SOUTH
     SLOWLY ACROSS BEIBU WAN.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND (DIRECTION/KNOT)          TEMPERATURE (DEG. C)
   A.   SURFACE:  VRB/5
                  TEMPO VRB/20G30 IN TS                27-35
   B.   2000 FT:  300/10-15                            28
   C.   5000 FT:  050/15                               20
   D.  10000 FT:  330/10                               12
   E.  18000 FT:  300/5                                0
   F.  24000 FT:  350/10                               MS10
   G.  30000 FT:  290/5                                MS23
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      SUNNY INTERVALS AND A FEW SHOWERS. MORE SHOWERS
      WITH SQUALLY THUNDERSTORMS LATER.
   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 2500 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     : 1.0-1.5 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     LIGHT WINDS.
     MAINLY CLOUDY WITH SHOWERS WITH 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.