Weather Forecast for Local Aviation

I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     SEV TURB AND SEV GUSTS.  GALE FORCE WINDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AN EASTERLY AIRSTREAM IS AFFECTING THE SOUTH
     CHINA COASTAL AREAS. BESIDES, A COLD FRONT IS
     MOVING ACROSS NORTHERN GUANGDONG. IT IS EXPECTED
     TO REACH THE COASTAL AREAS OF GUANGDONG
     OVERNIGHT.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND (DIRECTION/KNOT)          TEMPERATURE (DEG. C)
   A.   SURFACE:  VRB/5
                  BECMG 360/20-25G35
       OFFSHORE:  080/10-15
                  BECMG  360/25-30 OCNL 35G45          23-12
   B.   2000 FT:  120/10-15
                  BECMG  360/25-30 OCNL 35G45          10
   C.   5000 FT:  260/10
                  BECMG 360/20                         13
   D.  10000 FT:  270/30                               10
   E.  18000 FT:  260/25                               MS1
   F.  24000 FT:  270/30                               MS15
   G.  30000 FT:  270/45                               MS27
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      1100-2300 FT
   I. WEATHER       : 
      MAINLY FINE.  LOCALIZED MIST OR HAZE AT FIRST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW  2500 FT
   K. VISIBILITY    : 10 KM. TEMPO 4000 M IN  MIST/HAZE.
   L. 0 DEG. C LEVEL: 17500 FT      10 DEG. C LEVEL(S) : 2000,10000 FT
   M. TURBULENCE    : MOD TO SEV
   N. SEA STATE     : 1.0-5.0 M     SEA TEMPERATURE    : 20 DEG
IV.  FURTHER OUTLOOK: 
     FRESH TO STRONG NORTHERLY WINDS, GALE FORCE
     WINDS OFFSHORE AND ON HIGH GROUNDS. CLOUDY
     PERIODS.=

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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.