Weather Forecast for Local Aviation

I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AT 11 P.M. LAST NIGHT, TYPHOON IN-FA WAS CENTRED
     NEAR 24.9 DEGREES NORTH, 124.9 DEGREES EAST AND
     IS FORECAST TO MOVE NORTH-NORTHWEST AT ABOUT 6
     KNOTS ACROSS THE SEAS EAST OF TAIWAN AND IN THE
     GENERAL DIRECTION OF THE COAST OF EASTERN CHINA.
     MEANWHILE, TROPICAL DEPRESSION CEMPAKA WAS
     CENTRED NEAR 20.1 DEGREES NORTH, 106.7 DEGREES
     EAST AND IS FORECAST TO MOVE SOUTH SLOWLY ACROSS
     BEIBU WAN.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND (DIRECTION/KNOT)          TEMPERATURE (DEG. C)
   A.   SURFACE:  260/5-10
                  TEMPO VRB/15G25 IN TS
       OFFSHORE:  260/10-15                            26-33
   B.   2000 FT:  300/10-15                            28
   C.   5000 FT:  330/10                               21
   D.  10000 FT:  010/5                                12
   E.  18000 FT:  360/10                               1
   F.  24000 FT:  030/10                               MS11
   G.  30000 FT:  010/10                               MS21
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY CLOUDY WITH OCCASIONAL SHOWERS AND
      SQUALLY THUNDERSTORMS. SHOWERS WILL BE HEAVY AT
      TIMES AT FIRST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT SCT 3000 FT.
      TEMPO FEW CB 1000 FT SCT 2500 FT BKN 4000 FT.
   K. VISIBILITY    : 8 KM. TEMPO 4000 M IN SHOWERS.
TEMPO 2500 M IN TS.
   L. 0 DEG. C LEVEL: 18500 FT      10 DEG. C LEVEL(S) : 12600 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 29 DEG
IV.  FURTHER OUTLOOK: 
     LIGHT TO MODERATE WESTERLY WINDS.
     SUNNY PERIODS APART FROM A FEW SHOWERS AND
     ISOLATED 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.