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 :
     THE NORTHEAST MONSOON IS AFFECTING THE SOUTH
     CHINA COASTAL AREAS. 
     THE TROPICAL STORM OVER THE CENTRAL TO NORTHERN
     PARTS OF THE SOUTH CHINA SEA HAS NAMED NANGKA. 
     AT 3 P.M., THE TROPICAL STORM NANGKA WAS LOCATED
     AT 17.8 DEGREES NORTH, 116.2 DEGREES EAST.  IT
     IS FORECAST TO MOVE WEST OR WEST-NORTHWEST AT
     ABOUT 10 KT IN THE GENERAL DIRECTION OF THE
     VICINITY OF HAINAN ISLAND AND INTENSIFY
     GRADUALLY.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1515 TO 2300 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  070/10-15
       OFFSHORE:  080/20-25
                  BECMG 60/30                          31-26
   B.   2000 FT:  080/25-30                            21
   C.   5000 FT:  060/25-30
                  BECMG 090/40                         19
   D.  10000 FT:  080/20
                  BECMG 100/35                         11
   E.  18000 FT:  130/10
                  BECMG 130/20                         MS2
   F.  24000 FT:  300/10                               MS10
   G.  30000 FT:  180/10                               MS23
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      3100-4300
   I. WEATHER       : 
      MAINLY FINE WITH A FEW SHOWERS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT SCT 3000 FT
   K. VISIBILITY    : 10 KM
   L. 0 DEG. C LEVEL: 17000 FT      10 DEG. C LEVEL(S) : 11000 FT
   M. TURBULENCE    : SEV NEAR HILLS. MOD TO SEV OFFSHORE
   N. SEA STATE     : 2.5-3.0 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH EAST TO NORTHEASTERLY WINDS,
     STRONG OFFSHORE.
     MAINLY FINE, BECOMING CLOULDY WITH SHOWERS AND
     SQUALLY THUNDERSTORMS.=

===================================================================
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.