WEATHER FORECAST FOR LOCAL AVIATION

Weather Forecast for Local Aviation

Bulletin issued at 01:30 HKT 23/JAN/2020
(Next update at 9:00-9:30 HKT 23/JAN/2020)
I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     FOG.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE NORTHEAST MONSOON NOW AFFECTING THE COASTAL
     AREAS OF GUANGDONG IS BEING REPLACED BY A
     SOUTHEASTERLY AIRSTREAM GRADUALLY.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  090/5-10
       OFFSHORE:  090/10-15                            19-26
   B.   2000 FT:  150/10-15                            18
   C.   5000 FT:  150/10                               13
   D.  10000 FT:  250/25                               10
   E.  18000 FT:  240/45                               MS6
   F.  24000 FT:  250/50                               MS22
   G.  30000 FT:  240/75                               MS37
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY CLOUDY. LIGHT RAIN,LOCALISED
      MIST/COASTAL FOG.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT SCT 3500 FT.
   K. VISIBILITY    : 8 KM. TEMPO 4000 M IN MIST/RAIN. TEMPO 800 M IN FOG.
   L. 0 DEG. C LEVEL: 15500 FT      10 DEG. C LEVEL(S) : 10000 FT
   M. TURBULENCE    : NIL
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 20 DEG
IV.  FURTHER OUTLOOK: 
     LIGHT TO MODERATE EAST TO SOUTHEASTERLY WINDS.
     MAINLY CLOUDY, SUNNY PERIODS DURING THE DAY.
     LIGHT RAIN AND COASTAL FOG AT NIGHT=
===================================================================
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
===================================================================
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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