WEATHER FORECAST FOR LOCAL AVIATION

Weather Forecast for Local Aviation

Bulletin issued at 12:30 HKT 15/FEB/2020
(Next update at 17:30 HKT 15/FEB/2020)
I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB. 
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS. 
     FOG.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE SHOWERS ASSOCIATED WITH AN UPPER-AIR
     DISTURBANCE ARE AFFECTINGTHE SOUTH CHINA COASTAL
     AREAS.
     BESIDES, A COLD FRONT OVER THE NORTHERN PART OF
     SOUTHERN CHINA IS MOVING SOUTHWARDS. IT IS
     EXPECTED TO MOVE ACROSS THE COAST OF GUANGDONG
     TONIGHT TO TOMORROW MORNING.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1300 TO 2300 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  130/10
                  BECMG 350/15-20
                  TEMPO VRB/15G25 IN TS
       OFFSHORE:  140/10-15
                  BECMG 340/25-30                      25-15
   B.   2000 FT:  190/25-30
                  BECMG 010/25-30                      17
   C.   5000 FT:  200/35                               14
   D.  10000 FT:  220/45                               7
   E.  18000 FT:  250/50                               MS7
   F.  24000 FT:  260/65                               MS18
   G.  30000 FT:  270/85                               MS31
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY CLOUDY WITH SHOWERS AND A FEW SQUALLY
      THUNDERSTORMS. LOCALISED MIST/COASTAL FOG.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 800 FT SCT 1500 FT
      TEMPO FEW CB 800 FT SCT 1500 FT BKN 4000 FT
   K. VISIBILITY    : 7 KM. TEMPO 2000 M IN TS/MIST. TEMPO 500 M IN FOG.
   L. 0 DEG. C LEVEL: 13500 FT      10 DEG. C LEVEL(S) : 9000 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS, OFFSHORE AND NEAR HILLS
   N. SEA STATE     : 1.5-4.5 M     SEA TEMPERATURE    : 19 DEG
IV.  FURTHER OUTLOOK: 
     FRESH NORTHERLY WINDS, STRONG OFFSHORE. CLOUDY
     WITH SHOWERS AND A FEW SQUALLY THUNDERSTORMS.=
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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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