WEATHER FORECAST FOR LOCAL AVIATION

Weather Forecast for Local Aviation

Bulletin issued at 09:30 HKT 13/MAY/2022
(Next update at 12:30 HKT 13/MAY/2022)
I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AN ACTIVE TROUGH OF LOW PRESSURE IS BRINGING
     SHOWERS AND THUNDERSTORMS TO THE COAST OF
     GUANGDONG AND THE NORTHERN PART OF THE SOUTH
     CHINA SEA.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND (DIRECTION/KNOT)          TEMPERATURE (DEG. C)
   A.   SURFACE:  200/10-15
                  TEMPO VRB/15G30 IN TS
       OFFSHORE:  220/15-20                            25-27
   B.   2000 FT:  250/15-20                            22
   C.   5000 FT:  250/20-25                            18
   D.  10000 FT:  250/25                               11
   E.  18000 FT:  270/30                               MS2
   F.  24000 FT:  270/30                               MS12
   G.  30000 FT:  270/30                               MS24
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      CLOUDY TO OVERCAST WITH OCCASIONAL HEAVY
      SHOWERS AND SQUALLY THUNDERSTORMS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 800 FT SCT 2500 FT BKN 8000 FT
      TEMPO FEW CB 800 FT SCT 1500 FT BKN 4000 FT
   K. VISIBILITY    : 9 KM, TEMPO 3000 M IN SHOWERS, 
                      TEMPO 2000 M IN TS.
   L. 0 DEG. C LEVEL: 17000 FT      10 DEG. C LEVEL(S) : 10800 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS. 
                      MOD OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 2.0-2.5 M     SEA TEMPERATURE    : 24 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH SOUTH TO SOUTHWESTERLY WINDS,
     OCCASIONALLY STRONG ON HIGH GROUNDS.
     CLOUDY WITH SHOWERS AND SQUALLY THUNDERSTORMS.
     SHOWERS WILL BE MORE FREQUENT AT TIMES.=
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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.


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