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Weather Forecast for Local Aviation

Bulletin issued at 12:30 HKT 24/AUG/2019
(Next update at 17:30 HKT 24/AUG/2019)
I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AT NOON., SEVERE TROPICAL STORM BAILU WAS
     LOCATED AT 21.9 DEGREES ORTH, 121.1 DEGREES
     EAST. IT IS FORECAST TO MOVE NORTHWEST AT ABOUT
     15 KNOTS TOWARDS THE VICINITY OF SOUTHERN PART
     OF TAIWAN.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1300 TO 2300 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  320/5-10
                  BECMG 290/10-15
                  TEMPO VRB/15G25 IN TS
       OFFSHORE:  320/10
                  BECMG 290/10-15 OCNL 20              35-28
   B.   2000 FT:  360/5-10
                  BECMG 320/15-20                      26
   C.   5000 FT:  350/20                               21
   D.  10000 FT:  030/25                               13
   E.  18000 FT:  020/25                               MS1
   F.  24000 FT:  040/20                               MS11
   G.  30000 FT:  040/20                               MS24
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      1600-2500 FT
   I. WEATHER       : 
      SUNNY PERIODS, MAINLY CLOUDY TONIGHT. LOCALIZED
      HAZE. A FEW SHOWERS AND ISOLATED SQUALLY
      THUNDERSTORMS LATER.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT SCT 3000 FT  TEMPO FEW CB 1000 FT
      SCT 1500 FT  BKN 5000 FT
   K. VISIBILITY    : 7 KM. TEMPO 2500 M IN SHOWERST/HAZE. TEMPO 2000 M IN TS.
   L. 0 DEG. C LEVEL: 17500 FT      10 DEG. C LEVEL(S) : 12400 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS. MOD NEAR HILLS AND OFFSHORE.
   N. SEA STATE     : 0.5-2.5 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH WEST TO NORTHWESTERLIES,
     OCCASIONALLY STRONG OFFSHORE LATER. MAINLY
     CLOUDY. A FEW SHOWERS AND ISOLATED SQUALLY
     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.