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Weather Forecast for Local Aviation

Bulletin issued at 09:00 HKT 19/OCT/2018
(Next update at 12:30 HKT 19/OCT/2018)
I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     A STRONG EASTERLY AIRSTREAM IS AFFECTING THE
     COAST OF GUANGDONG.  MEANWHILE, A BAND OF CLOUDS
     IS COVERING THE REGION.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  080/15
       OFFSHORE:  080/25-30                            24-26
   B.   2000 FT:  100/20-25                            18
   C.   5000 FT:  130/15                               16
   D.  10000 FT:  250/10                               8
   E.  18000 FT:  290/30                               MS4
   F.  24000 FT:  280/25                               MS16
   G.  30000 FT:  290/40                               MS30
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY CLOUDY WITH A FEW RAIN PATCHES.  BRIGHT
      PERIODS DURING THE DAY.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT  SCT 4000 FT.
   K. VISIBILITY    : 9 KM.  TEMPO 4000 M IN RAIN.
   L. 0 DEG. C LEVEL: 16000 FT      10 DEG. C LEVEL(S) : 8400 FT
   M. TURBULENCE    : MOD TO SEV.
   N. SEA STATE     : 3.0-4.5 M     SEA TEMPERATURE    : 26 DEG
IV.  FURTHER OUTLOOK: 
     FRESH TO STRONG EASTERLY WINDS.  MAINLY CLOUDY.=
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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.