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Weather Information for South China Coastal Waters

Bulletin issued at 13:02 HKT 23/Jun/2018

At 1 p.m. at the Hong Kong Observatory the air temperature was 24 degrees Celsius and the relative humidity 93 per cent.
During the past hour the mean UV Index recorded at King's Park was 0.2. The intensity of UV radiation was low.

Gusts reaching 70 kilometres per hour or above may affect Hong Kong.

Please be reminded that:

The Amber Rainstorm Warning Signal has been issued.
The Thunderstorm Warning has been issued. It will remain effective until 4:00 p.m. today. A few squally thunderstorms are expected to occur over Hong Kong.

The air temperatures at other places were:

King's Park 24 degrees;
Wong Chuk Hang 24 degrees;
Ta Kwu Ling 24 degrees;
Lau Fau Shan 25 degrees;
Tai Po 25 degrees;
Sha Tin 25 degrees;
Tuen Mun 25 degrees;
Tseung Kwan O 24 degrees;
Sai Kung 25 degrees;
Cheung Chau 24 degrees;
Chek Lap Kok 26 degrees;
Tsing Yi 25 degrees;
Shek Kong 25 degrees;
Tsuen Wan Ho Koon 24 degrees;
Tsuen Wan Shing Mun Valley 25 degrees;
Hong Kong Park 24 degrees;
Shau Kei Wan 24 degrees;
Kowloon City 24 degrees;
Happy Valley 25 degrees;
Wong Tai Sin 25 degrees;
Stanley 24 degrees;
Kwun Tong 24 degrees;
Sham Shui Po 24 degrees;
Kai Tak Runway Park 24 degrees;
Yuen Long Park 25 degrees;
Tai Mei Tuk 24 degrees.

Between 11:45 a.m. and 12:45 p.m., lightning was detected over all regions. The rainfall recorded in various regions were:

Southern District 4 to 18 mm;
Islands District 1 to 18 mm;
Central & Western District 10 to 16 mm;
Tai Po 2 to 15 mm;
Sai Kung 1 to 14 mm;
Sha Tin 7 to 14 mm;
Wan Chai 11 to 14 mm;
Eastern District 4 to 14 mm;
Wong Tai Sin 9 to 14 mm;
Kwun Tong 6 to 12 mm;
Sham Shui Po 9 to 11 mm;
Kwai Tsing 4 to 9 mm;
North District 1 to 8 mm;
Kowloon City 7 mm;
Yau Tsim Mong 5 to 7 mm;
Yuen Long 0 to 6 mm;
Tsuen Wan 2 to 5 mm;
Tuen Mun 0 to 1 mm.


Note: The data above is provisional. Only limited data validation has been carried out.


Climatological Information for 23 Jun

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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Local Weather Forecast

Automatic Regional Weather Forecast in Hong Kong & Pearl River Delta Region

Current Weather | Regional Temperature Forecast in HK |  9-day Weather Forecast
UV Index Forecast |  Weather Information for South China Coastal Waters

Bulletin updated at 13:20 HKT 23/Jun/2018

Here is the latest weather bulletin issued by the Hong Kong Observatory.

The southwest monsoon is bringing heavy showers and thunderstorms to the coastal areas of Guangdong. Locally, thundery showers brought about 30 millimetres of rainfall to many places around noon.

Weather forecast for this afternoon and tonight

Cloudy with showers and a few squally thunderstorms. Showers will be heavy at times at first. Moderate south to southwesterly winds.

Outlook : Still a few showers tomorrow. Showers will ease off and it will become fine in the following couple of days.


(The above forecast period is valid up to 23:59 HKT today, 23/06/2018; Regular update at : around 45 minutes past each hour, 16:15 HKT and 23:15 HKT)

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MARINE FORECAST
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Marine Forecast

Weather Information for the Marine Community

Bulletin issued at 09:00 HKT 23/Jun/2018

N0 WARNING.

GENERAL SITUATION AT 222100 UTC:
TROUGH 25N 104E 28N 115E 30N 125E QSTNR.

MARINE FORECAST FOR 24 HOURS FROM 230100 UTC:

HONG KONG= S TO SW 4-5, OCNL 6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 3 M. TEMP 31-28 C. =
KWANGTUNG= S TO SW 5-6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL S UP TO 2 M. =
TAIWAN STRAIT= SW 5-6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL SW UP TO 2 M. =
BASHI= S TO SW 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. SWELL SW UP TO 2 M. =
PRATAS= S TO SW 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. SWELL SW UP TO 2 M. =
BALINTANG= S TO SW 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. SWELL SW UP TO 2 M. =
SCARBOROUGH= S TO SW 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. SWELL S 2 M. =
PARACEL= S 5-6. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL S 2 M. =
TONKIN= S 5-6, OCNL 7. ISOL SHOWERS AND TS. SEA UP TO 4 M. =
DANANG= S 5-6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL S UP TO 2 M. =
NNNN
Abbreviations:
KT, VRB, SLW, FRQ - knot, variable, slow, frequent STNR, QSTNR, C - stationary, quasi-stationary, degrees celsius WKN, INTSF, INTST, NC - weaken, intensify, intensity, no change LGT, ISOL, SCT, OCNL - light, isolated, scattered, occasional CLD, DZ, TS - cloudy, drizzle, thunderstorm

The date and time are specified by a 6-digit number DDHHMM. DD stands for the day of month, HH represents the hour while MM indicates the minute in UTC.


  • Map showing the 10 forecast areas
  • Tidal Information

    • SOUTH CHINA COASTAL WATERS
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    South China Coastal Waters

    Current Weather | Local Weather Forecast | Regional Temperature Forecast in HK
    9-day Weather Forecast | UV Index Forecast | Weather Information for Fishermen

    Bulletin issued at 12:30 HKT 23/Jun/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 12:30 p.m. on 23 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.
    Scattered heavy 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 force 5 to 6.
    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 showers and thunderstorms.

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

    Waglan Island Wind west force 5
      Visibility 6 Kilometres

    Shantou Wind south-southwest force 2
      Visibility 1400 Metres in showers

    Huangmaozhou Wind west-northwest force 4

    Macau Wind west-southwest force 2
      Visibility 4000 Metres in showers

    Xisha Wind south force 4
      Visibility 15 Kilometres

  • Explanation of Seas or Sea Waves
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    • WEATHER FORECAST FOR LOCAL AVIATION
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    Weather Forecast for Local Aviation

    Bulletin issued at 12:30 HKT 23/JUN/2018
    (Next update at 17:30 HKT 23/JUN/2018)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB. 
     CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE SOUTHWEST MONSOON IS AFFECTING THE SOUTH
     CHINA COASTAL AREAS.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1300 TO 2300 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  200/10-15
                  TEMPO VRB/20G30 IN TS
       OFFSHORE:  200/15-20, OCNL 25                   30-25
   B.   2000 FT:  200/20-25                            24
   C.   5000 FT:  210/20                               19
   D.  10000 FT:  210/20                               11
   E.  18000 FT:  220/15                               MS2
   F.  24000 FT:  200/10                               MS13
   G.  30000 FT:  060/10                               MS25
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY CLOUDY WITH SHOWERS AND SQUALLY
      THUNDERSTORMS. SHOWERS WILL BE HEAVY AT TIMES
      AT FIRST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1200 FT  SCT 2500 FT  BKN 10000 FT.  
      TEMPO FEW 800 FT  SCT CB 1200 FT  BKN 4000 FT.
   K. VISIBILITY    : 8 KM.  TEMPO 3000 M IN SHOWERS.  
                      TEMPO 1500 M IN TS.
   L. 0 DEG. C LEVEL: 16500 FT      10 DEG. C LEVEL(S) : 10800 FT
   M. TURBULENCE    : MOD TO SEV.
   N. SEA STATE     : 2.0-2.5 M     SEA TEMPERATURE    : 29 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE SOUTH TO SOUTHWESTERLY WINDS.  
     MAINLY CLOUDY WITH SHOWERS AND ISOLATED 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.

    sigmet
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    Significant Weather Information (SIGMET)

    The Airport Meteorological Office is responsible for monitoring hazardous weather and phenomena in the atmosphere that may affect the safety of aircraft operations within a designated airspace over the northern part of the South China Sea. Weather forecasters at the Airport Meteorological Office issues SIGMET information when hazardous weather and phenomena in the atmosphere such as thunderstorms, tropical cyclones, turbulence, icing occur or are expected to occur in the airspace.

    The latest significant weather information
    issued by the Hong Kong Observatory at 12:30 HKT on 23 Jun 18

    VHHK SIGMET 1 VALID 230030/230430 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2218 E11730 - N2030 E11130 - N2124 E11130 - N2142 E11154 - N2318 E11548 - N2330 E11730 - N2218 E11730 TOP FL430 MOV NE 05KT NC= VHHK SIGMET 2 VALID 230430/230830 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2224 E11700 - N2054 E11400 - N2130 E11248 - N2224 E11342 - N2254 E11454 - N2312 E11642 - N2224 E11700 TOP FL450 MOV NE 05KT NC=

    Please click here for more about the SIGMET

    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 23/Jun/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     30.4 C
Minimum Air Temperature                     25.4 C
Grass Minimum Temperature                   25.8 C
Relative Humidity                        82 - 93 Percent
Rainfall                                    32.9 mm 
Total rainfall since 1st January           582.2 mm
Against an average of                      966.5 mm

Other Stations                Min                  Max
King's Park                  24.9 C               30.6 C
Wong Chuk Hang               24.6 C               30.2 C
Ta Kwu Ling                  24.4 C               31.3 C
Tai Po                       24.6 C               29.9 C
Sha Tin                      25.2 C               31.4 C
Tuen Mun                     24.4 C               31.4 C
Tseung Kwan O                24.8 C               30.6 C
Sai Kung                     25.5 C               31.8 C
Cheung Chau                  23.9 C               30.0 C
Chek Lap Kok                 24.7 C               32.2 C
Tsing Yi                     24.8 C               31.2 C
Shek Kong                    24.3 C               31.9 C
Tsuen Wan Ho Koon            23.6 C               28.0 C
Tsuen Wan Shing Mun Valley   24.4 C               30.5 C
Hong Kong Park               24.3 C               30.0 C
Shau Kei Wan                 24.7 C               30.8 C
Kowloon City                 24.9 C               30.4 C
Happy Valley                 25.2 C               31.1 C
Wong Tai Sin                 25.0 C               31.2 C
Stanley                      24.6 C               30.2 C
Kwun Tong                    25.2 C               30.3 C
Sham Shui Po                 25.2 C               31.2 C
Kai Tak Runway Park          25.3 C               30.3 C
Yuen Long Park               24.1 C               32.3 C
Tai Mei Tuk               24.1 C               30.7 C

Duration of sunshine (King's Park):              1.1 H
The mean UV index recorded at King's Park yesterday was 1,
the UV intensity was Low.
The maximum UV index for yesterday was 6.
 

Yesterday's (22 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 22 Jun
     2003copy right image | Important notices | Privacy policy Last revision date: <23 Jun 2018> 

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