WEATHER FORECAST FOR LOCAL AVIATION

Weather Forecast for Local Aviation

Bulletin issued at 17:30 HKT 25/JAN/2020
(Next update at 01:30 HKT 26/JAN/2020)
I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     A COLD FRONT IS MOVING SOUTHWARDS GRADUALLY AND
     IS EXPECTED TO MOVE ACROSS THE COAST OF
     GUANGDONG TOMORROW MORNING.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  090/10-15
                  BECMG 360/15
       OFFSHORE:  090/20-25 OCNL 30
                  BECMG  360/20-25                     20-17
   B.   2000 FT:  100/20-25                            15
   C.   5000 FT:  150/20                               13
   D.  10000 FT:  190/20-25                            6
   E.  18000 FT:  230/50                               MS9
   F.  24000 FT:  240/60                               MS22
   G.  30000 FT:  240/100                              MS34
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      2500-3200 FT
   I. WEATHER       : 
      MAINLY CLOUDY WITH OCCASIONAL RAIN.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT SCT 3500 FT.
   K. VISIBILITY    : 8 KM. TEMPO 3500 M IN RAIN.
   L. 0 DEG. C LEVEL: 13500 FT      10 DEG. C LEVEL(S) : 6400 FT
   M. TURBULENCE    : MOD TO SEV.
   N. SEA STATE     : 3.0-4.5 M     SEA TEMPERATURE    : 20 DEG
IV.  FURTHER OUTLOOK: 
     FRESH NORTHERLY WINDS, STRONG OFFSHORE.
     MAINLY CLOUDY WITH OCCASIONAL RAIN.=
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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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