SOUTH CHINA COASTAL WATERS
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South China Coastal Waters

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Bulletin issued at 09:30 HKT 22/Jun/2018

Weather information for south China coastal waters issued by the Hong Kong Observatory at 9:30 a.m. on 22 June 2018

Warnings:
Strong winds in all areas.

Weather Situation:
The southwest monsoon is affecting the south China coastal waters.

Area forecasts for the next 24 hours

Hong Kong Adjacent Waters:
South to southwest force 4 to 5, occasionally force 6.
Isolated squally showers and thunderstorms.
Moderate to rough seas.

Nan'ao, Shanwei and South of Hong Kong:
South to southwest force 5 to 6.
Isolated squally showers and thunderstorms.
Moderate to rough seas.

Shangchuan Dao:
South to southwest force 5 to 6, occasionally force 7.
Isolated squally showers and thunderstorms.
Moderate to rough seas.

Outlook for the next 48 hours
South to southwesterly winds of force 5 to 6. Isolated squally showers and thunderstorms.

Latest reports from south China coastal weather stations
--------------------------------------------------------

Waglan Island Wind south force 4
  Visibility 20 Kilometres

Shantou Wind west-southwest force 2
  Visibility 1700 Metres in showers

Huangmaozhou Wind south-southwest force 4

Macau Wind southeast force 3
  Visibility 12 Kilometres

Xisha Wind south-southwest force 3
  Visibility 13 Kilometres

  • Explanation of Seas or Sea Waves
  • Explanation of Swells
  • Descriptive Terms of Wind Speeds
  • Visibility Readings in Hong Kong Waters
  • Map showing forecast areas
  • Tidal Information

    • WEATHER FORECAST FOR LOCAL AVIATION
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    Weather Forecast for Local Aviation

    Bulletin issued at 09:00 HKT 22/JUN/2018
    (Next update at 12:30 HKT 22/JUN/2018)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE SOUTHWEST MONSOON IS BRINGING SHOWERS TO THE
     COAST OF GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  200/10
                  TEMPO VRB/15G25 IN TS
       OFFSHORE:  200/15-20                            29-33
   B.   2000 FT:  200/15-20                            24
   C.   5000 FT:  210/15                               20
   D.  10000 FT:  230/10                               12
   E.  18000 FT:  240/10                               MS3
   F.  24000 FT:  260/10                               MS12
   G.  30000 FT:  030/10                               MS24
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      SUNNY INTERVALS WITH A FEW SHOWERS AND
      THUNDERSTORMS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT  SCT 2500 FT.  TEMPO FEW CB 1000 FT
      SCT 2000 FT  BKN 4000 FT.
   K. VISIBILITY    : 10 KM.  TEMPO 4000 M IN SHOWERS.
                      TEMPO 2000 M IN TS.
   L. 0 DEG. C LEVEL: 16500 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    : 28 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE SOUTH TO SOUTHWESTERLY WINDS.  MAINLY
     CLOUDY WITH A FEW SHOWERS AND THUNDERSTORMS.=

    ===================================================================
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
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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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    TROPICAL CYCLONE WARNING FOR SHIPPING
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    Tropical Cyclone Warning for Shipping

    There is no tropical cyclone warning for shipping*.




    *Tropical cyclone warnings for shipping are issued by the Hong Kong Observatory for tropical cyclones located within the area bounded by 105E and 125E , 10N and 30N.




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

    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 22/Jun/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     31.6 C
Minimum Air Temperature                     28.7 C
Grass Minimum Temperature                   27.4 C
Relative Humidity                        73 - 89 Percent
Rainfall                                     2.6 mm 
Total rainfall since 1st January           549.3 mm
Against an average of                      956.8 mm

Other Stations                Min                  Max
King's Park                  28.5 C               32.2 C
Wong Chuk Hang               28.4 C               30.6 C
Ta Kwu Ling                  26.1 C               33.2 C
Lau Fau Shan                 27.5 C               33.7 C
Tai Po                       28.4 C               32.9 C
Sha Tin                      26.8 C               32.5 C
Tuen Mun                     27.8 C               32.2 C
Tseung Kwan O                26.9 C               32.5 C
Sai Kung                     27.2 C               33.9 C
Cheung Chau                  27.5 C               31.9 C
Chek Lap Kok                 29.2 C               33.8 C
Tsing Yi                     28.8 C               32.2 C
Shek Kong                    27.9 C               32.5 C
Tsuen Wan Ho Koon            27.1 C               29.9 C
Tsuen Wan Shing Mun Valley   28.5 C               30.7 C
Hong Kong Park               27.4 C               31.2 C
Shau Kei Wan                 26.8 C               32.0 C
Kowloon City                 28.2 C               32.7 C
Happy Valley                 28.7 C               31.6 C
Wong Tai Sin                 28.9 C               32.9 C
Stanley                      28.5 C               30.6 C
Kwun Tong                    28.5 C               32.4 C
Sham Shui Po                 28.3 C               31.6 C
Kai Tak Runway Park          28.3 C               31.7 C
Yuen Long Park               27.3 C               33.8 C
Tai Mei Tuk               27.3 C               33.1 C

Duration of sunshine (King's Park):              3.1 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 9.
 

Yesterday's (21 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                         0.11
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 21 Jun
     2003copy right image | Important notices | Privacy policy Last revision date: <22 Jun 2018> 

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