WEATHER FORECAST FOR LOCAL AVIATION

Weather Forecast for Local Aviation

Bulletin issued at 01:30 HKT 07/JAN/2021
(Next update at 9:00-9:30 HKT 07/JAN/2021)
I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE WINTER MONSOON IS AFFECTING THE COSTAL AREAS
     OF GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND (DIRECTION/KNOT)          TEMPERATURE (DEG. C)
   A.   SURFACE:  070/10-15
                  BECMG 010/15-20
       OFFSHORE:  070/15-20
                  BECMG 010/20-25                      14-16
   B.   2000 FT:  070/20-25                            11
   C.   5000 FT:  330/10                               8
   D.  10000 FT:  270/35                               12
   E.  18000 FT:  270/50                               MS4
   F.  24000 FT:  260/50                               MS13
   G.  30000 FT:  280/50                               MS27
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      4500-4800 FT
   I. WEATHER       : 
      MAINLY CLOUDY.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 3000 FT SCT 4000 FT
   K. VISIBILITY    : 8 KM
   L. 0 DEG. C LEVEL: 16000 FT      10 DEG. C LEVEL(S) : 2800, 8200, 11000 FT
   M. TURBULENCE    : MOD TO SEV OFFSHORE AND NEAR HILLS
   N. SEA STATE     : 2.0-3.5 M     SEA TEMPERATURE    : 19 DEG
IV.  FURTHER OUTLOOK: 
     FRESH NORTH TO NORTHEASTERLY WINDS, STRONG
     OFFSHORE. 
     BRIGHT PERIODS.=
===================================================================
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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