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Weather Forecast for Local Aviation

Bulletin issued at 01:30 HKT 25/FEB/2017
(Next update at 9:00-9:30 HKT 25/FEB/2017)
I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AN INTENSE NORTHEAST MONSOON IS AFFECTING THE COASTAL AREAS
     OF GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  020/10-15
       OFFSHORE:  020/15-20, OCNL 25                   9-14
   B.   2000 FT:  060/15-20                            8
   C.   5000 FT:  220/15                               13
   D.  10000 FT:  260/30                               8
   E.  18000 FT:  260/55                               MS6
   F.  24000 FT:  260/65                               MS14
   G.  30000 FT:  260/70                               MS28
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      3400 - 4600 FT
   I. WEATHER       : 
      CLOUDY TO OVERCAST WITH A FEW RAIN PATCHES.
      LOCALIZED MIST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1000 FT  SCT 2000 FT  BKN 6000 FT
   K. VISIBILITY    : 7 KM. TEMPO 3000 M IN RAIN/MIST.
   L. 0 DEG. C LEVEL: 14000 FT      
      10 DEG. C LEVEL(S) : NEAR SURFACE, 4200, 7200 FT.
   M. TURBULENCE    : MOD TO SEV OFFSHORE. MOD NEAR HILLS.
   N. SEA STATE     : 1.5-2.5 M     SEA TEMPERATURE    : 17 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE NORTH TO NORTHEASTERLY WINDS, FRESH OFFSHORE.
     CLOUDY WITH A FEW RAIN PATCHES. LOCALIZED MIST.=
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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.