WEATHER FORECAST FOR LOCAL AVIATION

Weather Forecast for Local Aviation

Bulletin issued at 01:30 HKT 16/SEP/2020
(Next update at 9:00-9:30 HKT 16/SEP/2020)
I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AN EASTERLY AIRSTREAM IS AFFECTING THE SOUTH
     CHINA COASTAL WATERS. THE AREA OF LOW PRESSURE
     OVER THE SOUTHERN PART OF THE SOUTH CHINA SEA
     HAS INTENSIFIED INTO A TROPICAL DEPRESSION.   AT
     1.A.M., THE TOPRICAL DREPRESSION WAS LOCATED  AT
     12.5 DEGREES NORTH, 119.0 DEGREES EAST. IT IS
     FORECAST TO MOVE WEST-NORTHWEST  AT ABOUT 8 KT
     ACROSS THE CENTRAL AND SOUTHERN PARTS OF THE
     SOUTH CHINA SEA AND INTENSIFY GRADUALLY.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  110/10
                  TEMPO VRB/20G30 IN TS
       OFFSHORE:  130/10-15                            26-32
   B.   2000 FT:  100/15                               25
   C.   5000 FT:  140/15                               20
   D.  10000 FT:  180/15                               14
   E.  18000 FT:  210/15                               MS1
   F.  24000 FT:  180/20                               MS11
   G.  30000 FT:  110/15                               MS24
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY CLOUDY WITH SHOWERS AND A FEW
      THUNDERSTORMS. SUNNY PERIODS DURING THE DAY.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT SCT 2500 FT TEMPO FEW CB 800 FT SCT
      1500 FT BKN 4000 FTBKN 4000 FT
   K. VISIBILITY    : 10 KM, TEMPO 4000 M IN SHOWERS, TEMPO 2000 M IN TS.
   L. 0 DEG. C LEVEL: 17500 FT      10 DEG. C LEVEL(S) : 12200 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH EAST TO SOUTHEASTERLY WINDS.
     MAINLY CLOUDY WITH SHOWERS AND A FEW
     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.


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