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Bulletin issued at 05:02 HKT 16/Jun/2017

At 5 a.m. at the Hong Kong Observatory the air temperature was 29 degrees Celsius and the relative humidity 85 per cent.

Please be reminded that:

The Thunderstorm Warning has been issued. It will remain effective until 6:15 a.m. today. Isolated squally thunderstorms are expected to occur over Hong Kong.

The air temperatures at other places were:

King's Park 28 degrees;
Wong Chuk Hang 28 degrees;
Ta Kwu Ling 27 degrees;
Lau Fau Shan 27 degrees;
Tai Po 27 degrees;
Sha Tin 29 degrees;
Tuen Mun 29 degrees;
Tseung Kwan O 28 degrees;
Sai Kung 28 degrees;
Cheung Chau 28 degrees;
Chek Lap Kok 30 degrees;
Tsing Yi 28 degrees;
Shek Kong 28 degrees;
Tsuen Wan Ho Koon 27 degrees;
Tsuen Wan Shing Mun Valley 27 degrees;
Hong Kong Park 29 degrees;
Shau Kei Wan 28 degrees;
Kowloon City 28 degrees;
Happy Valley 29 degrees;
Wong Tai Sin 28 degrees;
Stanley 29 degrees;
Kwun Tong 29 degrees;
Sham Shui Po 28 degrees;
Kai Tak Runway Park 29 degrees;
Yuen Long Park 27 degrees;
Tai Mei Tuk 27 degrees.

Between 3:45 and 4:45 a.m., lightning was detected within New Territories East, New Territories West, Hong Kong and Kowloon. The rainfall recorded in various regions were:

North District 0 to 25 mm;
Tai Po 0 to 9 mm;
Tsuen Wan 0 to 7 mm;
Sai Kung 0 to 4 mm;
Yuen Long 0 to 3 mm;
Kwun Tong 0 to 3 mm;
Eastern District 0 to 2 mm;
Kwai Tsing 1 to 2 mm;
Islands District 0 to 2 mm;
Sha Tin 0 to 1 mm.


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


Climatological Information for 16 Jun

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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Bulletin updated at 05:00 HKT 16/Jun/2017

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

A trough of low pressure is bringing showers and thunderstorms to the coast of Guangdong. Locally, a few millimetres of rainfall were recorded over many places this morning, and rainfall even exceeded 10 millimetres over the eastern part of Hong Kong Island and Sai Kung.

Weather forecast for today

Mainly cloudy with occasional showers and a few squally thunderstorms. Bright periods in the afternoon. The maximum temperature will be about 31 degrees. Moderate to fresh southwesterly winds.

Outlook : Showers will be heavy at times with thunderstorms tomorrow. There will still be showers in the following few days.


(The above forecast period is valid up to 23:59 HKT today, 16/06/2017; 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 15/Jun/2017

N0 WARNING.

GENERAL SITUATION AT 150900 UTC:
TROUGH 23N 105E 23N 116E 22N 125E S SLOWLY.

MARINE FORECAST FOR 24 HOURS FROM 151300 UTC:

HONG KONG= SW 4-5. DOWN TO 2000 M IN OCNL SHOWERS AND A FEW TS. SEA UP TO 2 M. TEMP 27-31 C. =
KWANGTUNG= SW 5, OCNL 6. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS LATER. SEA UP TO 3 M. =
TAIWAN STRAIT= NE 5-6, SW 5-6 IN S AT FIRST. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 2-3 M. =
BASHI= SW 5-6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS LATER. SEA 2-3 M. =
PRATAS= SW 5, OCNL 6. ISOL SHOWERS. SEA UP TO 3 M. =
BALINTANG= SW 5-6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS LATER. SEA 2-3 M. =
SCARBOROUGH= SW 4-5. ISOL SHOWERS. SEA UP TO 2 M. =
PARACEL= S TO SW 5, OCNL 6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS LATER. SEA 2-3 M. =
TONKIN= S TO SW 5, OCNL 6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-3 M. =
DANANG= S TO SW 5, OCNL 6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS LATER. SEA 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
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    Bulletin issued at 05:30 HKT 16/Jun/2017

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 5:30 a.m. on 16 June 2017

    Warnings:
    Strong winds in all areas.

    Weather Situation:
    Showers associated with a trough of low pressure are affecting the south China coastal waters.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    Southwest force 4 to 5, occasionally force 6.
    Occasional showers and a few squally thunderstorms.
    Moderate to rough seas.

    Nan'ao, Shanwei, South of Hong Kong and Shangchuan Dao:
    Southwest force 5, occasionally force 6.
    Scattered squally showers and thunderstorms later.
    Moderate to rough seas.

    Outlook for the next 48 hours
    Southwesterly winds of force 4 to 5, occasionally force 6. Scattered squally showers and thunderstorms.

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

    Waglan Island Wind southwest force 6
      Visibility 13 Kilometres

    Shantou Wind east-northeast force 1
      Visibility 29 Kilometres

    Dongsha Wind south-southwest force 2
      Visibility 10 Kilometres

    Huangmaozhou Wind south-southwest force 4

    Macau Wind south-southwest force 2
      Visibility 10 Kilometres

    Xisha Wind south-southwest force 4
      Visibility 15 Kilometres

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    • WEATHER FORECAST FOR LOCAL AVIATION
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    Weather Forecast for Local Aviation

    Bulletin issued at 01:30 HKT 16/JUN/2017
    (Next update at 9:00-9:30 HKT 16/JUN/2017)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB ON HIGH GROUND.
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     A TROUGH OF LOW PRESSURE IS BRINGING SHOWERS AND
     THUNDERSTORMS TO THE COAST OF GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  210/10-15
                  TEMPO VRB/15G25 IN TS
       OFFSHORE:  210/15-20                            29-32
   B.   2000 FT:  220/15-20, OCNL 25                   22
   C.   5000 FT:  230/20                               20
   D.  10000 FT:  250/25                               12
   E.  18000 FT:  260/25                               MS3
   F.  24000 FT:  260/15                               MS12
   G.  30000 FT:  300/15                               MS26
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY CLOUDY WITH OCCASIONAL SHOWERS AND A FEW
      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: 17000 FT      10 DEG. C LEVEL(S) : 11800 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS AND NEAR HILLS. MOD OFFSHORE.
   N. SEA STATE     : 2.0-2.5 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH SOUTHWESTERLY WINDS. MAINLY
     CLOUDY WITH OCCASIONAL SHOWERS AND A FEW
     THUNDERSTORMS. BRIGHT PERIODS IN THE AFTERNOON.=

    ===================================================================
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 04:30 HKT on 16 Jun 17

    VHHK SIGMET 3 VALID 152030/160030 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2254 E11500 - N2336 E11712 - N2200 E11712 - N2112 E11500 - N2254 E11500 TOP FL400 MOV NE 10KT 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 16/Jun/2017 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     31.1 C
Minimum Air Temperature                     26.8 C
Grass Minimum Temperature                   25.6 C
Relative Humidity                        73 - 91 Percent
Rainfall                                    14.5 mm 
Total rainfall since 1st January           826.4 mm
Against an average of                      869.7 mm

Other Stations                Min                  Max
King's Park                  26.8 C               31.4 C
Wong Chuk Hang               26.0 C               29.8 C
Ta Kwu Ling                  25.5 C               32.2 C
Lau Fau Shan                 26.8 C               31.9 C
Tai Po                       25.9 C               30.4 C
Sha Tin                      27.3 C               31.2 C
Tuen Mun                     27.3 C               32.1 C
Tseung Kwan O                26.4 C               31.7 C
Sai Kung                     26.6 C               33.0 C
Cheung Chau                  25.9 C               30.2 C
Chek Lap Kok                 27.6 C               32.6 C
Tsing Yi                     26.6 C               30.4 C
Shek Kong                    26.7 C               32.3 C
Tsuen Wan Ho Koon            25.9 C               28.8 C
Tsuen Wan Shing Mun Valley   26.9 C               30.4 C
Hong Kong Park               26.1 C               29.7 C
Shau Kei Wan                 26.7 C               30.6 C
Kowloon City                 26.3 C               31.4 C
Happy Valley                 27.0 C               30.8 C
Wong Tai Sin                 26.3 C               31.0 C
Stanley                      25.9 C               30.0 C
Kwun Tong                    26.1 C               30.6 C
Sham Shui Po                 25.8 C               31.1 C
Kai Tak Runway Park          26.6 C               31.2 C
Yuen Long Park               26.4 C               32.2 C
Tai Mei Tuk               26.2 C               30.8 C

Duration of sunshine (King's Park):              3.0 H
The mean UV index recorded at King's Park yesterday was 3,
the UV intensity was Moderate.
The maximum UV index for yesterday was 7.
 

Yesterday's (15 Jun 2017) 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                           0.08
Tap Mun                             0.08
Kat O                               0.08
Yuen Ng Fan                         0.11
Tai Mei Tuk                         0.12
Sha Tau Kok                         0.10
Kwun Tong                           0.11
Sai Wan Ho                          0.09
King's Park                         0.14
Tsim Bei Tsui                       0.13
Cape D'Aguilar                      0.12
Chek Lap Kok                        0.14

Note

      

    1. From readings taken at various locations in Hong Kong during
the period 1987-2016, the background ambient gamma radiation
levels may vary between 0.06 and 0.30 microsievert per hour.

    2. The extent of health effects to a person as a result of
exposure to radiation is expressed by a physical quantity
called equivalent dose, in unit of sievert.  Protective
action may be required if there is an increase in the
ambient gamma dose rate above background such that the total
additional dose is expected to exceed 5000 microsieverts in
a relatively short period of time. For example, a dose of
5000 microsieverts may be reached when the ambient gamma
dose rate is 1000 microsieverts per hour (several thousand
times above background) and lasts for 5 hours.

    3. The readings of ambient gamma radiation level from
instrument are expressed in unit of gray, which is
numerically equal to the gamma dose expressed in sievert.
    Climatological Information for 15 Jun
     2003copy right image | Important notices | Privacy policy Last revision date: <16 Jun 2017> 

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