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 :
     PRESSURE OVER THE NORTHERN PART OF SOUTHERN
     CHINA IS RISING. THE WINTER MONSOON IS EXPECTED
     TO REACH GUANGDONG AT NIGHT.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND (DIRECTION/KNOT)          TEMPERATURE (DEG. C)
   A.   SURFACE:  040/5-10
       OFFSHORE:  040/10, OCNL 15
                  BECMG 050/20-25                      21-15
   B.   2000 FT:  040/10, OCNL 15
                  BECMG 050/20-25                      11
   C.   5000 FT:  340/10                               8
   D.  10000 FT:  270/35                               9
   E.  18000 FT:  260/35                               MS3
   F.  24000 FT:  260/40                               MS14
   G.  30000 FT:  270/40                               MS30
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY CLOUDY.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 4000 FT SCT 6000 FT
   K. VISIBILITY    : 9 KM
   L. 0 DEG. C LEVEL: 17000 FT      10 DEG. C LEVEL(S) : 3000 FT
   M. TURBULENCE    : MOD TO SEV OFFSHORE AND NEAR HILLS
   N. SEA STATE     : 1.0-3.5 M     SEA TEMPERATURE    : 19 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH NORTH TO NORTHEASTERLY WINDS,
     STRONG OFFSHORE. MAINLY CLOUDY, SUNNY INTERVALS
     DURING THE DAY.=

===================================================================
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
===================================================================

Aviation Weather Observation and Forecast Information for Hong Kong International Airport

To know more about clouds, please see Commonly observed clouds in Hong Kong.