Weather Forecast for Local Aviation

I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     SEV TURB AND SEV GUSTS.  
     STORM FORCE WINDS. 
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     TROPICAL STORM HIGOS HAS INTENSIFIED INTO A
     SEVERE TROPICAL STORM.
     AT 7 P.M., HIGOS WAS LOCATED AT 21.1 DEGREES
     NORTH, 115.1 DEGREES EAST. IT IS FORECAST TO
     MOVE NORTHWEST OR WEST-NORTHWEST AT ABOUT 11
     KNOTS TOWARDS THE COAST OF WESTERN GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1945 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  060/15-20
                  BECMG 100/25-30 OCNL 35G45
                  TEMPO VRB/45G55 IN TS
       OFFSHORE:  060/25-30G40
                  BECMG 100/35-40 OCNL 45-50G60        26-24
   B.   2000 FT:  060/20-25
                  BECMG 120/30-40 OCNL 45-50G60        22
   C.   5000 FT:  060/25-30
                  BECMG 110/45                         18
   D.  10000 FT:  080/25
                  BECMG 120/35                         11
   E.  18000 FT:  080/20
                  BECMG 100/30                         MS1
   F.  24000 FT:  080/20
                  BECMG 110/30                         MS12
   G.  30000 FT:  080/10
                  BECMG 090/25                         MS24
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      CLOUDY WITH OCCASIONAL HEAVY SQUALLY SHOWERS
      AND THUNDERSTORMS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT SCT 2500 FT. 
      TEMPO FEW CB 800 FT SCT 2000 FT BKN 4000 FT
   K. VISIBILITY    : 10 KM, TEMPO 3000 M IN SHOWERS, TEMPO 1500 M IN TS.
   L. 0 DEG. C LEVEL: 17000 FT      10 DEG. C LEVEL(S) : 10400 FT
   M. TURBULENCE    : MOD TO SEV.
   N. SEA STATE     : 6.0-12.0 M    SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     STRONG TO GALE EAST TO SOUTHEASTERLY WINDS,
     OCCASIONALLY STROM FORCE OFFSHORE AND ON
     HIGHGROUNDS AT FIRST.  CLOUDY WITH OCCASIONAL
     HEAVY SQUALLY SHOWERS AND THUNDERSTORMS.=

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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.