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Weather Forecast for Local Aviation

Bulletin issued at 17:30 HKT 20/JUN/2018
(Next update at 01:30 HKT 21/JUN/2018)
I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE SOUTHWEST MONSOON IS AFFECTING THE COAST OF
     GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  210/10
       OFFSHORE:  210/15-20                            31-28
   B.   2000 FT:  210/15-20                            24
   C.   5000 FT:  240/15                               21
   D.  10000 FT:  240/15                               13
   E.  18000 FT:  250/10                               MS2
   F.  24000 FT:  340/10                               MS12
   G.  30000 FT:  040/15                               MS25
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY CLOUDY WITH A FEW SHOWERS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT  SCT 3000 FT.
   K. VISIBILITY    : 10 KM.  TEMPO 4000 M IN SHOWERS.
   L. 0 DEG. C LEVEL: 17500 FT      10 DEG. C LEVEL(S) : 11800 FT
   M. TURBULENCE    : MOD OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 2.0-2.5 M     SEA TEMPERATURE    : 29 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE SOUTHWESTERLY WINDS.  SUNNY PERIODS AND
     A FEW SHOWERS.=

===================================================================
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.

Tropical Cyclone Warning
Gregorian/Lunar Calendar
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Tropical Cyclone Warning

There is no tropical cyclone warning signal.

For other tropical cyclone related information, please visit the World Meteorological Organization Web Site - Severe Weather Information Centre.

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 2003copy right image | Important notices | Privacy policy Last revision date: <18 Jun 2018> 
YESTERDAY'S WEATHER AND RADIATION LEVEL Skip to main content
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Yesterday's Weather and Radiation Level

Bulletin issued at 00:15 HKT 20/Jun/2018 
HKO Readings & Radiation Level

Yesterday's Weather and Radiation Level:
------------------------------------------------------

Hong Kong Observatory
Maximum Air Temperature                     31.5 C
Minimum Air Temperature                     28.6 C
Grass Minimum Temperature                   26.8 C
Relative Humidity                        71 - 84 Percent
Rainfall                                      Trace 
Total rainfall since 1st January           546.7 mm
Against an average of                      936.0 mm

Other Stations                Min                  Max
King's Park                  28.0 C               31.3 C
Wong Chuk Hang               27.9 C               30.6 C
Ta Kwu Ling                  26.0 C               33.1 C
Lau Fau Shan                 26.0 C               33.0 C
Tai Po                       27.1 C               31.9 C
Sha Tin                      28.0 C               31.6 C
Tuen Mun                     27.8 C               32.0 C
Tseung Kwan O                27.1 C               32.2 C
Sai Kung                     28.5 C               33.0 C
Cheung Chau                  27.1 C               31.5 C
Chek Lap Kok                 28.1 C               33.8 C
Tsing Yi                     28.0 C               31.4 C
Shek Kong                    27.5 C               33.3 C
Tsuen Wan Ho Koon            26.9 C               28.9 C
Tsuen Wan Shing Mun Valley   28.1 C               30.2 C
Hong Kong Park               28.3 C               30.9 C
Shau Kei Wan                 27.1 C               31.0 C
Kowloon City                 27.6 C               31.5 C
Happy Valley                 28.0 C               31.0 C
Wong Tai Sin                 28.2 C               31.9 C
Stanley                      27.6 C               29.8 C
Kwun Tong                    27.7 C               31.4 C
Sham Shui Po                 27.8 C               31.0 C
Kai Tak Runway Park          27.8 C               31.3 C
Yuen Long Park               27.4 C               33.3 C
Tai Mei Tuk               26.9 C               32.4 C

Duration of sunshine (King's Park):              2.5 H
The mean UV index recorded at King's Park yesterday was 4,
the UV intensity was Moderate.
The maximum UV index for yesterday was 10.
 

Yesterday's (19 Jun 2018) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.08 to
0.14 microsievert per hour.  These are within the normal
range of fluctuation of the background radiation level in
Hong Kong (see Note). The average dose rates measured at the
radiation monitoring stations over various parts of the
territory were as follows :

Station                     Yesterday's average
                            (microsievert/hour)
Ping Chau                           0.09
Tap Mun                             0.09
Kat O                               0.10
Yuen Ng Fan                         0.12
Tai Mei Tuk                         0.12
Sha Tau Kok                         0.10
Kwun Tong                           0.12
Sai Wan Ho                          0.08
King's Park                         0.14
Tsim Bei Tsui                       0.13
Cape D'Aguilar                      0.13
Chek Lap Kok                        0.14

Note

    

  1. From readings taken at various locations in Hong Kong in the
past, the hourly mean ambient gamma radiation dose rate may
vary between 0.06 and 0.3 microsievert per hour. (1
microsievert = 0.000001 sievert = 0.001 millisievert)

  2. Temporal variations are generally caused by changes in
meteorological conditions such as rainfall, wind and
barometric pressure.

  3. Spatial variations are generally caused by differences in
the radioactive content of local rock and soil.

  4. The data displayed is provisional. Only limited data
validation has been carried out.
Climatological Information for 19 Jun
 2003copy right image | Important notices | Privacy policy Last revision date: <20 Jun 2018> 

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