Weather Forecast for Local Aviation

I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     SEV TURB AND SEV GUSTS.  GALE FORCE WINDS. ISOL
     CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE NORTHEAST MONSOON IS AFFECTING THE SOUTH
     CHINA COASTAL AREAS. 
     AT NOON, TROPICAL STORM NANGKA WAS LOCATED AT
     18.5 DEGREES NORTH, 111.7 DEGREES EAST.  IT IS
     FORECAST TO MOVE WEST OR WEST-NORTHWEST AT ABOUT
     12 KT  TOWARDS THE VICINITY OF HAINAN ISLAND AND
     INTENSIFY GRADUALLY.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1300 TO 2300 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  090/30-35G45
                  TEMPO 080/35G45  IN TS
       OFFSHORE:  080/35-40  OCNL 45G55                27-25
   B.   2000 FT:  090/40-45G55                         20
   C.   5000 FT:  100/40                               17
   D.  10000 FT:  130/35                               12
   E.  18000 FT:  110/30                               0
   F.  24000 FT:  100/20                               MS12
   G.  30000 FT:  110/10
                  BECMG 340/25                         MS24
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      CLOUDY WITH RAIN AND A FEW SQUALLY
      THUNDERSTORMS. RAIN WILL BECOME MORE FREQUENT.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT SCT 3000 FT
      TEMPO FEW CB 800 FT SCT 1500 FT BKN 4000FT
   K. VISIBILITY    : 10 KM, TEMPO 3000 M IN SHOWERS, TEMPO 1500 M IN TS
   L. 0 DEG. C LEVEL: 18000 FT      10 DEG. C LEVEL(S) : 10800 FT
   M. TURBULENCE    : SEV
   N. SEA STATE     : 5.5-7.5 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     STRONG TO GALE EAST TO SOUTHEASTERLY WINDS.
     CLOUDY WITH RAIN AND A FEW SQUALLY
     THUNDERSTORMS. RAIN WILL BE  FREQUENT.=

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