WEATHER FORECAST FOR LOCAL AVIATION

Weather Forecast for Local Aviation

Bulletin issued at 01:30 HKT 25/DEC/2019
(Next update at 9:00-9:30 HKT 25/DEC/2019)
I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE NORTHEAST MONSOON IS AFFECTING THE COASTAL
     AREAS OF GUANGDONG.
     AT 11 P.M. LAST NIGHT, TYPHOON PHANFONE WAS
     LOCATED NEAR 11.5 DEGREES NORTH, 124.2 DEGREES
     EAST. IT IS FORECAST TO MOVE WEST-NORTHWEST AT
     ABOUT 12 KNOTS ACROSS THE CENTRAL PART OF THE
     PHILIPPINES.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  080/10
       OFFSHORE:  090/15-20                            19-23
   B.   2000 FT:  110/15                               18
   C.   5000 FT:  180/10                               14
   D.  10000 FT:  250/25                               12
   E.  18000 FT:  270/40                               MS3
   F.  24000 FT:  260/55                               MS15
   G.  30000 FT:  260/60                               MS27
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY FINE.LOCALISED MIST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2500 FT
   K. VISIBILITY    : 9 KM. TEMPO 4000 M IN MIST.
   L. 0 DEG. C LEVEL: 17000 FT      10 DEG. C LEVEL(S) : 6800, 9000, 11800 FT
   M. TURBULENCE    : MOD OFFSHORE AND NEAR HILLS
   N. SEA STATE     : 2.0-2.5 M     SEA TEMPERATURE    : 21 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EASTERLY WINDS, OCCASIONALLY FRESH
     OFFSHORE. MAINLY FINE. LOCALISED MIST OR HAZE
     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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