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 :
     TROPICAL STORM LUPIT HAS WEAKENED INTO A
     TROPICAL DEPRESSION.
     AT NOON, LUPIT WAS CENTRED NEAR 25.0 DEGREES
     NORTH, 120.8 DEGREES EAST. IT IS FORECAST TO  IT
     IS FORECAST TO MOVE EAST SLOWLY AT FIRST, AND
     THEN MOVE NORTHEAST LATER AT ABOUT 12 KNOTS
     ENTERING THE EAST CHINA SEA.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1300 TO 2300 HKT:
             WIND (DIRECTION/KNOT)          TEMPERATURE (DEG. C)
   A.   SURFACE:  240/10
                  TEMPO VRB/20G30 IN TS
       OFFSHORE:  240/15 OCNL 20                       33-27
   B.   2000 FT:  240/15 OCNL 20                       25
   C.   5000 FT:  290/10                               21
   D.  10000 FT:  310/5                                12
   E.  18000 FT:  010/10                               1
   F.  24000 FT:  100/5                                MS9
   G.  30000 FT:  070/15                               MS21
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY CLOUDY WITH A FEW SHOWERS AND ISOLATED
      THUNDERSTORMS. SUNNY INTERVALS IN THE AFTERNOON.
   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 2000M IN TS.
   L. 0 DEG. C LEVEL: 18500 FT      10 DEG. C LEVEL(S) : 11800 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS, MOD OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 2.0-2.5 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH SOUTHWESTERLY WINDS.
     MAINLY CLOUDY WITH 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.