Weather Forecast for Local Aviation

I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS, SEV TURB AND SEV GUSTS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     PRESSURE IS RISING OVER INLAND GUANGDONG. AN
     INTENSE WINTER MONSOON IS EXPECTED TO REACH THE
     COASTAL AREAS TONIGHT. MEANWHILE, A BROAD BAND
     OF CLOUDS IS BRINGING RAINY WEATHER TO GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND (DIRECTION/KNOT)          TEMPERATURE (DEG. C)
   A.   SURFACE:  020/10-15
                  BECMG 360/20-25G35
       OFFSHORE:  020/15-20, OCNL 25
                  BECMG 360/30-35G45                   17-12
   B.   2000 FT:  060/15-20, OCNL 25
                  BECMG 360/30-35G45                   12
   C.   5000 FT:  100/15                               18
   D.  10000 FT:  240/25                               7
   E.  18000 FT:  250/35                               MS5
   F.  24000 FT:  260/40                               MS16
   G.  30000 FT:  250/45                               MS29
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      2600-5000 FT
   I. WEATHER       : 
      CLOUDY TO OVERCAST WITH A FEW RAIN PATCHES.
      LOCALISED MIST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 500 FT SCT 1500 FT BKN 6000 FT
   K. VISIBILITY    : 7 KM. TEMPO 4000 M IN RAIN OR MIST
   L. 0 DEG. C LEVEL: 16000 FT      10 DEG. C LEVEL(S) : 8400 FT
   M. TURBULENCE    : MOD TO SEV
   N. SEA STATE     : 2.0-5.0 M     SEA TEMPERATURE    : 21 DEG
IV.  FURTHER OUTLOOK: 
     FRESH TO STRONG NORTHERLY WINDS, OCCASIONALLY
     GALE OFFSHORE AND ON HIGH GROUND.
     CLOUDY. BECOMING FINE.=

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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.