WEATHER FORECAST FOR LOCAL AVIATION

Weather Forecast for Local Aviation

Bulletin issued at 01:30 HKT 22/OCT/2020
(Next update at 9:00-9:30 HKT 22/OCT/2020)
I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE NORTHEAST MONSOON IS AFFECTING THE SOUTH
     CHINA COASTAL AREAS.
     AT 11 P.M. LAST NIGHT, SEVERE TROPICAL STORM
     SAUDEL WAS LOCATED AT 16.2 DEGREES NORTH, 117.2
     DEGREES EAST. IT IS FORECAST TO MOVE NORTHWEST
     OR WEST-NORTHWEST SLOWLY ACROSS THE CENTRAL PART
     OF THE SOUTH CHINA SEA.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  360/15-20
       OFFSHORE:  360/20-25 OCNL 30                    21-28
   B.   2000 FT:  020/20-25 OCNL 30                    20
   C.   5000 FT:  070/20                               15
   D.  10000 FT:  020/10                               13
   E.  18000 FT:  360/10                               MS1
   F.  24000 FT:  340/10                               MS12
   G.  30000 FT:  220/15                               MS24
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY FINE.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 3000 FT
   K. VISIBILITY    : 9 KM
   L. 0 DEG. C LEVEL: 17500 FT      10 DEG. C LEVEL(S) : 12200 FT
   M. TURBULENCE    : MOD TO SEV
   N. SEA STATE     : 2.0-4.0 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH NORTHERLY WINDS, OCCASIONALLY
     STRONG OFFSHORE. 
     MAINLY FINE.=
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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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