Weather Forecast for Local Aviation

I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB. 
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE RAIN BANDS ASSOCIATED WITH AN UPPER-AIR
     DISTURBANCE ARE COVERING THE NORTHERN PART OF
     THE SOUTH CHINA SEA AND THE COAST OF SOUTHERN
     CHINA.
     MEANWHILE, THE NORTHEAST MONSOON IS AFFECTING
     THE COASTAL AREAS OF GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND (DIRECTION/KNOT)          TEMPERATURE (DEG. C)
   A.   SURFACE:  040/15-20
                  TEMPO VRB/15G30 IN TS
       OFFSHORE:  050/25-30                            19-23
   B.   2000 FT:  060/25-30                            17
   C.   5000 FT:  120/20-25                            16
   D.  10000 FT:  190/30                               8
   E.  18000 FT:  250/25                               MS3
   F.  24000 FT:  260/35                               MS13
   G.  30000 FT:  260/55                               MS26
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      CLOUDY WITH SHOWERS AND ISOLATED THUNDERSTORMS.
      SHOWERS WILL BE MORE FREQUENT AT TIMES.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1000 FT SCT 2500 FT  BKN 8000 FT.
      TEMPO FEW CB 800 FT SCT 1500 FT BKN 4000 FT.
   K. VISIBILITY    : 9 KM. TEMPO 3000 M IN SHOWERS. 
                      TEMPO 1500M IN TS.
   L. 0 DEG. C LEVEL: 15500 FT      10 DEG. C LEVEL(S) : 8600 FT
   M. TURBULENCE    : MOD TO SEV.
   N. SEA STATE     : 3.0-4.0 M     SEA TEMPERATURE    : 25 DEG
IV.  FURTHER OUTLOOK: 
     FRESH NORTHEASTERLY WINDS, STRONG OFFSHORE AND
     ON HIGH GROUNDS.
     CLOUDY WITH SHOWERS.=

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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.