WEATHER FORECAST FOR LOCAL AVIATION

Weather Forecast for Local Aviation

Bulletin issued at 12:30 HKT 11/JAN/2020
(Next update at 17:30 HKT 11/JAN/2020)
I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     A COLD FRONT OVER INLAND GUANGDONG IS MOVING
     SOUTHWARDS GRADUALLY. IT IS EXPECTED TO REACH
     THE COASTAL AREAS TONIGHT.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1300 TO 2300 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  070/10
                  BECMG 010/20
       OFFSHORE:  070/10
                  BECMG 010/20                         26-18
   B.   2000 FT:  170/10
                  BECMG 010/20                         15
   C.   5000 FT:  270/5-10                             12
   D.  10000 FT:  250/25                               10
   E.  18000 FT:  250/55                               MS8
   F.  24000 FT:  260/60                               MS11
   G.  30000 FT:  260/60                               MS26
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      1700-2300FT
   I. WEATHER       : 
      SUNNY PERIODS. MAINLY CLOUDY TONIGHT. LOCALISED
      HAZE AT FIRST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT SCT 3500 FT
   K. VISIBILITY    : 7 KM. TEMPO 4000 M IN HAZE.
   L. 0 DEG. C LEVEL: 13500 FT      10 DEG. C LEVEL(S) : 5600, 7000, 10000 FT
   M. TURBULENCE    : MOD AT LOW LEVELS
   N. SEA STATE     : 1.0-2.5 M     SEA TEMPERATURE    : 20 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH NORTH TO NORTHEASTERLY WINDS.
     MAINLY CLOUDY. BRIGHT PERIODS DURING THE DAY. A
     FEW RAIN PATCHES LATER.=
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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
===================================================================
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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