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Bulletin issued at 23:02 HKT 17/Jun/2018

At 11 p.m. at the Hong Kong Observatory the air temperature was 28 degrees Celsius and the relative humidity 81 per cent.

The area of low pressure over the northern part of the South China Sea continued to move northeastwards. It is expected to move towards the vicinity of eastern Guangdong and Taiwan Strait on Monday, gradually away from Hong Kong. Its associated showers will affect the northern part of the South China Sea and the coast of Guangdong. Members of the public should be aware of the latest weather conditions.

The air temperatures at other places were:

King's Park 27 degrees;
Wong Chuk Hang 28 degrees;
Ta Kwu Ling 27 degrees;
Lau Fau Shan 27 degrees;
Tai Po 27 degrees;
Sha Tin 28 degrees;
Tuen Mun 28 degrees;
Tseung Kwan O 27 degrees;
Sai Kung 28 degrees;
Cheung Chau 27 degrees;
Chek Lap Kok 29 degrees;
Tsing Yi 28 degrees;
Shek Kong 27 degrees;
Tsuen Wan Ho Koon 26 degrees;
Tsuen Wan Shing Mun Valley 27 degrees;
Hong Kong Park 28 degrees;
Shau Kei Wan 27 degrees;
Kowloon City 27 degrees;
Happy Valley 28 degrees;
Wong Tai Sin 27 degrees;
Stanley 27 degrees;
Kwun Tong 27 degrees;
Sham Shui Po 28 degrees;
Kai Tak Runway Park 28 degrees;
Yuen Long Park 27 degrees;
Tai Mei Tuk 27 degrees.


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


Climatological Information for 17 Jun

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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

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Bulletin updated at 23:15 HKT 17/Jun/2018

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

A fresh to strong easterly airstream affected the coast of Guangdong today. Meanwhile, the area of low pressure over the northern part of the South China Sea brought unsettled weather to the region. Locally, the weather was mainly fine at first. It became cloudy gradually. The area of low pressure over the northern part of the South China Sea is expected to move northeastwards generally towards the vicinity of eastern Guangdong and Taiwan Strait today and tomorrow. Its associated showers will affect the region. Besides, Tropical Cyclone Gaemi evolved into an extratropical cyclone over the seas south of Japan today.

Weather forecast for Hong Kong (Monday, 18 Jun 2018)

Mainly cloudy with a few showers. Sunny intervals during the day. Temperatures will range between 26 and 31 degrees. Moderate to fresh east to northeasterly winds, occasionally strong offshore at first. Becoming southwesterlies.

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


(The above forecast period is valid up to 23:59 HKT tomorrow, 18/06/2018; 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 21:00 HKT 17/Jun/2018

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

GENERAL SITUATION AT 170900 UTC:
LOW 1000 HPA 20N 115E QSTNR INTST NC.

MARINE FORECAST FOR 24 HOURS FROM 171300 UTC:

HONG KONG= E 6-7, BEC SW 6-7 TOMORROW. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL SW 2 M. TEMP 26-31 C. =
KWANGTUNG= E 6-7, BEC S TO SW 6-7, UP TO 8 IN E. DOWN TO 1000 M IN SCT HEAVY SQUALLY SHOWERS AND TS. SEA 3-4 M, BEC 6 M IN E. SWELL SW 2-3 M. =
TAIWAN STRAIT= NE 6-7, BEC S TO SW UP TO 8. DOWN TO 1000 M IN SCT HEAVY SQUALLY SHOWERS AND TS. SEA 3-4 M, BEC 6 M. SWELL NE 2 M, SW UP TO 3 M LATER. =
BASHI= 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. =
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 1000 M IN SCT HEAVY SQUALLY SHOWERS AND TS. SEA 4-6 M. SWELL SW 2-3 M. =
SCARBOROUGH= 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. =
PARACEL= S TO SW 6-7. DOWN TO 1000 M IN SCT HEAVY SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL SW 2-3 M. =
TONKIN= S TO SW 6-7. DOWN TO 1000 M IN SCT HEAVY SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL S 2 M. =
DANANG= S TO SW 6-7. DOWN TO 1000 M IN SCT HEAVY 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
  • 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 23:30 HKT 17/Jun/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 11:30 p.m. on 17 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:
    An easterly airstream is affecting the south China coastal waters. Meanwhile, the area of low pressure over the northern part of the South China Sea is bringing unsettled weather to the region.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East force 6 to 7, becoming southwest force 6 to 7.
    Scattered squally showers and thunderstorms.
    Rough seas.

    Nan'ao and Shanwei:
    East force 6 to 7, becoming southwest up to force 8.
    Scattered heavy squally showers and thunderstorms.
    Rough seas, becoming very rough.

    South of Hong Kong:
    East force 6 to 7, becoming southwest force 6 to 7.
    Scattered heavy squally showers and thunderstorms.
    Rough seas.

    Shangchuan Dao:
    South to southwest force 6 to 7.
    Scattered heavy squally showers and thunderstorms.
    Rough seas.

    Outlook for the next 48 hours
    Southwesterly winds of force 6 to 7. Scattered heavy squally showers and thunderstorms.

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

    Waglan Island Wind east-northeast force 4

    Shantou Wind east-northeast force 2
      Visibility 30 Kilometres

    Huangmaozhou Wind east force 5

    Macau Wind east-southeast force 3
      Visibility 16 Kilometres

    Xisha Wind calm
      Visibility 22 Kilometres

  • Explanation of Seas or Sea Waves
  • Explanation of Swells
  • Descriptive Terms of Wind Speeds
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    • WEATHER FORECAST FOR LOCAL AVIATION
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    Weather Forecast for Local Aviation

    Bulletin issued at 17:30 HKT 17/JUN/2018
    (Next update at 01:30 HKT 18/JUN/2018)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AN EASTERLY AIRSTREAM IS AFFECTING THE SOUTH
     CHINA COASTAL AREAS. MEANWHILE, THE AREA OF LOW
     PRESSURE OVER THE NORTHERN PART OF THE SOUTH
     CHINA SEA IS BRINGING UNSETTLED WEATHER TO THE
     REGION.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  090/10
                  BECMG 330/10-15
       OFFSHORE:  090/15-20, OCNL 25
                  BECMG 330/15-20                      30-26
   B.   2000 FT:  090/10-15
                  BECMG  330/10-15                     23
   C.   5000 FT:  330/10                               18
   D.  10000 FT:  360/10                               12
   E.  18000 FT:  090/10                               MS2
   F.  24000 FT:  050/15                               MS11
   G.  30000 FT:  060/15                               MS26
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      3500 - 4000 FT.
   I. WEATHER       : 
      MAINLY CLOUDY WITH A FEW SHOWERS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2500 FT  SCT 4000 FT.
   K. VISIBILITY    : 10 KM.  TEMPO 4000 M IN SHOWERS.
   L. 0 DEG. C LEVEL: 17500 FT      10 DEG. C LEVEL(S) : 11200 FT
   M. TURBULENCE    : MOD TO SEV OFFSHORE
   N. SEA STATE     : 2.0-3.5 M     SEA TEMPERATURE    : 29 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH WEST TO SOUTHWESTERLY WINDS.
     MAINLY CLOUDY WITH A FEW SHOWERS. SUNNY
     INTERVALS DURING THE DAY.=

    ===================================================================
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 21:58 HKT on 17 Jun 18

    VHHK SIGMET 3 VALID 171000/171400 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N1924 E11606 - N1642 E11400 - N1930 E11130 - N2036 E11242 - N1924 E11606 TOP FL450 STNR NC = VHHK SIGMET 4 VALID 171400/171800 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2036 E11712 - N1642 E11400 - N1930 E11130 - N2100 E11130 - N2036 E11712 TOP FL450 STNR 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 17/Jun/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     31.5 C
Minimum Air Temperature                     26.9 C
Grass Minimum Temperature                   25.2 C
Relative Humidity                        58 - 81 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January           546.7 mm
Against an average of                      891.9 mm

Other Stations                Min                  Max
King's Park                  26.2 C               30.3 C
Wong Chuk Hang               26.7 C               30.3 C
Ta Kwu Ling                  25.1 C               31.9 C
Lau Fau Shan                 24.9 C               33.1 C
Tai Po                       26.8 C               31.8 C
Sha Tin                      26.8 C               31.4 C
Tuen Mun                     25.6 C               32.0 C
Tseung Kwan O                25.5 C               30.4 C
Sai Kung                     27.0 C               29.6 C
Cheung Chau                  24.6 C               29.7 C
Chek Lap Kok                 27.4 C               32.8 C
Tsing Yi                     27.3 C               31.7 C
Shek Kong                    26.4 C               32.3 C
Tsuen Wan Ho Koon            24.7 C               31.0 C
Tsuen Wan Shing Mun Valley   26.2 C               31.2 C
Hong Kong Park               26.5 C               31.6 C
Shau Kei Wan                 26.3 C               29.6 C
Kowloon City                 26.2 C               30.7 C
Happy Valley                 26.8 C               32.0 C
Wong Tai Sin                 26.6 C               30.4 C
Stanley                      26.8 C               29.9 C
Kwun Tong                    26.3 C               30.0 C
Sham Shui Po                 26.9 C               31.4 C
Kai Tak Runway Park          27.0 C               29.5 C
Yuen Long Park               25.8 C               32.7 C
Tai Mei Tuk               25.6 C               30.7 C

Duration of sunshine (King's Park):              7.3 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 (16 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                        0.13

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 16 Jun
     2003copy right image | Important notices | Privacy policy Last revision date: <17 Jun 2018> 

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