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Bulletin issued at 16:02 HKT 18/Jun/2018

At 4 p.m. at the Hong Kong Observatory the air temperature was 31 degrees Celsius and the relative humidity 69 per cent.
During the past hour the mean UV Index recorded at King's Park was 4. The intensity of UV radiation was moderate.

The air temperatures at other places were:

King's Park 31 degrees;
Wong Chuk Hang 29 degrees;
Ta Kwu Ling 32 degrees;
Lau Fau Shan 32 degrees;
Tai Po 31 degrees;
Sha Tin 31 degrees;
Tuen Mun 31 degrees;
Tseung Kwan O 31 degrees;
Sai Kung 32 degrees;
Cheung Chau 30 degrees;
Chek Lap Kok 32 degrees;
Tsing Yi 30 degrees;
Shek Kong 32 degrees;
Tsuen Wan Ho Koon 29 degrees;
Tsuen Wan Shing Mun Valley 29 degrees;
Hong Kong Park 29 degrees;
Shau Kei Wan 30 degrees;
Kowloon City 30 degrees;
Happy Valley 30 degrees;
Wong Tai Sin 31 degrees;
Stanley 29 degrees;
Kwun Tong 30 degrees;
Sham Shui Po 30 degrees;
Kai Tak Runway Park 31 degrees;
Yuen Long Park 32 degrees;
Tai Mei Tuk 31 degrees.


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


Climatological Information for 18 Jun

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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Bulletin updated at 16:15 HKT 18/Jun/2018

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

A southwesterly airstream is bringing showers to the northern part of the South China Sea and the coast of eastern Guangdong. Besides, an area of low pressure is bringing unsettled weather to the vicinity of Taiwan Strait.

Weather forecast for tonight and tomorrow

Mainly cloudy. A few showers at first. Isolated thunderstorms tomorrow morning. Sunny intervals during the day. Temperatures will range between 27 and 32 degrees. Moderate southwesterly winds, occasionally fresh offshore.

Outlook : Hot with sunny periods and a few showers in the following few days.


(The above forecast period is valid up to 23:59 HKT tomorrow, 19/06/2018; 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 18/Jun/2018

GALE WARNING AREAS: KWANGTUNG, TAIWAN STRAIT, BASHI, PRATAS, BALINTANG AND SCARBOROUGH.

GENERAL SITUATION AT 172100 UTC:
LOW 998 HPA 22N 117E NE SLOWLY INTST NC.

MARINE FORECAST FOR 24 HOURS FROM 180100 UTC:

HONG KONG= W TO SW 6-7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL SW 2 M. TEMP 31-27 C. =
KWANGTUNG= SW 6-7, UP TO 8 IN E. DOWN TO 1000 M IN SCT HEAVY SQUALLY SHOWERS AND TS. SEA 3-4 M, UP TO 6 M IN E. SWELL SW 2-3 M. =
TAIWAN STRAIT= SW 7-8. DOWN TO 1000 M IN SCT HEAVY SQUALLY SHOWERS AND TS. SEA 4-6 M. SWELL NE 2 M, SW 3 M. =
BASHI= SW 7-8. DOWN TO 1000 M IN SCT HEAVY SQUALLY SHOWERS AND TS. SEA 4-6 M. SWELL SW 3 M. =
PRATAS= S TO SW 7-8. DOWN TO 1000 M IN SCT HEAVY SQUALLY SHOWERS AND TS. SEA 4-6 M. SWELL SW 2-3 M. =
BALINTANG= S TO SW 7-8. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 4-6 M. SWELL SW 3 M. =
SCARBOROUGH= S TO SW 6-7, OCNL 8. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA UP TO 6 M. SWELL SW 3-4 M. =
PARACEL= S TO SW 6-7. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL SW 3 M. =
TONKIN= S TO SW 6-7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL S 2 M. =
DANANG= S TO SW 6-7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL S TO SW 2-3 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
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    • 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 16:30 HKT 18/Jun/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 4:30 p.m. on 18 June 2018

    Warnings:
    Gale force winds in Nan'ao and Shanwei. Strong winds in Hong Kong adjacent waters, south of Hong Kong and Shangchuan Dao.

    Weather Situation:
    A southwesterly airstream is bringing unsettled weather to the south China coastal waters.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    Southwest force 6 to 7.
    Isolated squally showers and thunderstorms.
    Rough seas.

    Nan'ao:
    Southwest force 7 to 8.
    Scattered heavy squally showers and thunderstorms.
    Rough to very rough seas.

    Shanwei:
    Southwest force 6 to 7, occasionally force 8.
    Scattered heavy squally showers and thunderstorms.
    Rough to very rough seas.

    South of Hong Kong and Shangchuan Dao:
    Southwest force 6 to 7.
    Scattered squally showers and thunderstorms.
    Rough seas.

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

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

    Waglan Island Wind southwest force 5

    Shantou Wind west-southwest force 1
      Visibility 29 Kilometres in showers

    Huangmaozhou Wind west-southwest force 4

    Macau Wind south force 3
      Visibility 15 Kilometres

    Xisha Wind southwest force 4
      Visibility 22 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 18/JUN/2018
    (Next update at 17:30 HKT 18/JUN/2018)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL
II.  SYNOPSIS OF THE WEATHER SITUATION :
     A SOUTHWESTERLY AIRSTREAM IS BRINGING SHOWERS TO
     THE NORTHERN PART OF THE SOUTH CHINA SEA. THE
     AREA OF LOW PRESSURE AFFECTING EASTERN GUANGDONG
     AND THE NORTHEASTERN PART OF THE SOUTH CHINA SEA
     IS MOVING TOWARDS THE VICINITY OF TAIWAN STRAIT
     GRADUALLY.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1300 TO 2300 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  240/10
       OFFSHORE:  240/15-20                            32-28
   B.   2000 FT:  240/15 OCNL 20                       24
   C.   5000 FT:  020/10                               19
   D.  10000 FT:  330/10                               11
   E.  18000 FT:  010/10                               MS1
   F.  24000 FT:  070/15                               MS10
   G.  30000 FT:  060/15                               MS21
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      SUNNY PERIODS IN THE AFTERNOON. MAINLY CLOUDY
      TONIGHT.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT SCT 3000 FT
   K. VISIBILITY    : 10 KM.
   L. 0 DEG. C LEVEL: 17500 FT      10 DEG. C LEVEL(S) : 10600 FT
   M. TURBULENCE    : MOD OFFSHORE AND NEAR HILLS
   N. SEA STATE     : 2.0-2.5 M     SEA TEMPERATURE    : 28 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE WEST TO SOUTHWESTERLY WINDS,
     OCCASIONALLY FRESH OFFSHORE.  MAINLY CLOUDY WITH
     A FEW ISOLATED 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.

    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 14:00 HKT on 18 Jun 18

    VHHK SIGMET 1 VALID 180200/180600 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2100 E11730 - N2048 E11718 - N1912 E11554 - N2000 E11300 - N2200 E11500 - N2242 E11730 - N2100 E11730 TOP FL420 MOV NE 05KT NC= VHHK SIGMET 2 VALID 180600/181000 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2106 E11730 - N1954 E11636 - N1848 E11542 - N1954 E11324 - N2136 E11500 - N2248 E11730 - N2106 E11730 TOP FL420 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 18/Jun/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     30.8 C
Minimum Air Temperature                     26.2 C
Grass Minimum Temperature                   24.3 C
Relative Humidity                        64 - 81 Percent
Rainfall                                      Trace 
Total rainfall since 1st January           546.7 mm
Against an average of                      914.9 mm

Other Stations                Min                  Max
King's Park                  25.8 C               31.1 C
Wong Chuk Hang               26.2 C               30.6 C
Ta Kwu Ling                  24.1 C               33.3 C
Lau Fau Shan                 24.7 C               33.3 C
Tai Po                       26.4 C               30.9 C
Sha Tin                      26.2 C               31.8 C
Tuen Mun                     25.5 C               32.8 C
Tseung Kwan O                24.6 C               30.1 C
Sai Kung                     26.2 C               30.8 C
Cheung Chau                  25.5 C               31.2 C
Chek Lap Kok                 26.8 C               33.9 C
Tsing Yi                     26.6 C               33.0 C
Shek Kong                    26.5 C               33.6 C
Tsuen Wan Ho Koon            24.5 C               31.5 C
Tsuen Wan Shing Mun Valley   25.7 C               31.3 C
Hong Kong Park               26.0 C               31.5 C
Shau Kei Wan                 25.6 C               30.4 C
Kowloon City                 25.4 C               32.0 C
Happy Valley                 26.3 C               31.2 C
Wong Tai Sin                 26.1 C               30.8 C
Stanley                      26.2 C               30.5 C
Kwun Tong                    25.5 C               30.2 C
Sham Shui Po                 25.7 C               31.5 C
Kai Tak Runway Park          26.5 C               29.7 C
Yuen Long Park               25.1 C               33.7 C
Tai Mei Tuk               25.3 C               32.9 C

Duration of sunshine (King's Park):              7.7 H
The mean UV index recorded at King's Park yesterday was 5,
the UV intensity was Moderate.
The maximum UV index for yesterday was 10.
 

Yesterday's (17 Jun 2018) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.09 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                          0.09
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 17 Jun
     2003copy right image | Important notices | Privacy policy Last revision date: <18 Jun 2018> 

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