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Weather Forecast for Local Aviation

Bulletin issued at 01:30 HKT 19/FEB/2019
(Next update at 9:00-9:30 HKT 19/FEB/2019)
I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS. 
     STRONG WINDS AND SEV TURB NEAR HILLS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     A TROUGH OF LOW PRESSURE IS BRINGING UNSETTLED
     WEATHER TO THE COAST OF GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  100/5-10
                  TEMPO VRB/15G25 IN TS
       OFFSHORE:  120/15-20                            17-23
   B.   2000 FT:  180/15-20, OCNL 25                   18
   C.   5000 FT:  210/25                               13
   D.  10000 FT:  250/35                               6
   E.  18000 FT:  240/55                               MS7
   F.  24000 FT:  240/75                               MS19
   G.  30000 FT:  230/90                               MS31
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      1300-2100 FT
   I. WEATHER       : 
      MAINLY CLOUDY WITH ISOLATED SHOWERS AND
      THUNDERSTORMS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 3000 FT  SCT 4500 FT
      TEMPO FEW CB 1500 FT  SCT 2500 FT  BKN 6000 FT
   K. VISIBILITY    : 9 KM.  TEMPO 3500 M IN SHOWERS. TEMPO 2500 M IN TS.
   L. 0 DEG. C LEVEL: 13000 FT      10 DEG. C LEVEL(S) : 6400 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS AND NEAR HILLS. MOD OFFSHORE.
   N. SEA STATE     : 2.0 M         SEA TEMPERATURE    : 19 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE SOUTHEASTERLY WINDS.  CLOUDY PERIODS.=
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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.