Weather Forecast for Local Aviation

I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     A BAND OF CLOUDS IS COVERING INLAND GUANGDONG. A
     REPLENISHMENT OF THE NORTHEAST MONSOON WILL
     REACH THE COASTAL AREAS OVERNIGHT.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND (DIRECTION/KNOT)          TEMPERATURE (DEG. C)
   A.   SURFACE:  090/10
                  BECMG 020/10
       OFFSHORE:  090/15-20
                  BECMG 030/20-25                      26-22
   B.   2000 FT:  100/15 OCNL 20
                  BECMG 040/20-25                      16
   C.   5000 FT:  120/10                               15
   D.  10000 FT:  190/10                               11
   E.  18000 FT:  250/10                               MS5
   F.  24000 FT:  190/15                               MS15
   G.  30000 FT:  190/10                               MS32
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      BECOMING  CLOUDY WITH A FEW LIGHT RAIN AND MIST
      PATCHES TONIGHT.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2500 FT SCT 4000 FT
   K. VISIBILITY    : 9  KM, TEMPO 4000 M IN RAIN /MIST.
   L. 0 DEG. C LEVEL: 14000 FT      10 DEG. C LEVEL(S) : 10400 FT
   M. TURBULENCE    : MOD TO SEV OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 2.0-3.5 M     SEA TEMPERATURE    : 25 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH NORTH TO NORTHEASTERLY WINDS,
     STRONG OFFSHORE. CLOUDY WITH A FEW LIGHT RAIN
     AND MIST PATCHES IN THE MORING. SUNNY PERIODS
     DURING THE DAY.=

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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.