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Bulletin issued at 21:02 HKT 15/Jun/2018

At 9 p.m. at the Hong Kong Observatory the air temperature was 28 degrees Celsius and the relative humidity 80 per cent.

The air temperatures at other places were:

King's Park 27 degrees;
Wong Chuk Hang 27 degrees;
Ta Kwu Ling 27 degrees;
Lau Fau Shan 26 degrees;
Tai Po 27 degrees;
Sha Tin 27 degrees;
Tuen Mun 27 degrees;
Tseung Kwan O 27 degrees;
Sai Kung 27 degrees;
Cheung Chau 27 degrees;
Chek Lap Kok 28 degrees;
Tsing Yi 28 degrees;
Shek Kong 27 degrees;
Tsuen Wan Ho Koon 25 degrees;
Tsuen Wan Shing Mun Valley 27 degrees;
Hong Kong Park 27 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 27 degrees;
Kai Tak Runway Park 28 degrees;
Yuen Long Park 27 degrees;
Tai Mei Tuk 26 degrees.

Here is the information on Tropical Depression Gaemi at 8 p.m.:
Location: 23.8 degrees north, 123.0 degrees east.


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


Climatological Information for 15 Jun

Regional Weather in Hong Kong

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Hong Kong Climatology


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Bulletin updated at 20:45 HKT 15/Jun/2018

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

A broad trough of low pressure is bringing unsettled weather to the northern and central parts of the South China Sea.

At 8 p.m., Tropical Depression Gaemi was centred about 540 kilometres west-southwest of Okinawa. It is forecast to move northeast at about 30 kilometres per hour across the western North Pacific.

Weather forecast for tonight and tomorrow

Mainly cloudy with isolated showers. Sunny periods tomorrow. Temperatures will range between 26 and 30 degrees. Moderate east to northeasterly winds, freshening tomorrow, occasionally strong offshore later.

Outlook : The weather will be unsettled with occasional showers in the following couple of days. Becoming brighter and hot midweek next week.


(The above forecast period is valid up to 23:59 HKT tomorrow, 16/06/2018; 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 15/Jun/2018

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

GENERAL SITUATION AT 150900 UTC:
FOR DETAILS ON TROPICAL DEPRESSION GAEMI (1806), PLEASE REFER TO THE 3-HRLY SHIPPING WARNINGS.

MARINE FORECAST FOR 24 HOURS FROM 151300 UTC:

HONG KONG= NE 5-6, OCNL 7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 4 M. SWELL SW 2 M. TEMP 26-30 C. =
KWANGTUNG= NE 6-7. DOWN TO 1000 M IN SCT HEAVY SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL SW 2-3 M. =
TAIWAN STRAIT= N TO NE 7-8. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 4-6 M. SWELL SW 2-3 M, NE 2-3 M. =
BASHI= SW 7-8. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 4-6 M. SWELL SW 2-3 M. =
PRATAS= SW 6-7, OCNL 8. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA UP TO 6 M. SWELL SW 3 M. =
BALINTANG= SW 7-8. DOWN TO 1000 M IN SCT HEAVY SQUALLY SHOWERS AND TS. SEA 4-6 M. SWELL SW 3 M. =
SCARBOROUGH= SW 6-7, OCNL 8. DOWN TO 1000 M IN SCT HEAVY SQUALLY SHOWERS AND TS. SEA UP TO 6 M. SWELL SW 3 M. =
PARACEL= W TO NW 6-7. DOWN TO 1000 M IN SCT HEAVY SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL SW 2-3 M. =
TONKIN= NW 6-7. DOWN TO 1000 M IN SCT HEAVY SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL SW 2 M. =
DANANG= W TO SW 6-7. DOWN TO 1000 M IN SCT HEAVY SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL 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.


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    • SOUTH CHINA COASTAL WATERS
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    South China Coastal Waters

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    Bulletin issued at 19:30 HKT 15/Jun/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 7:30 p.m. on 15 June 2018

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

    Weather Situation:
    A broad trough of low pressure is bringing unsettled weather to the south China coastal waters.

    At 7 p.m., Tropical Depression Gaemi with maximum sustained winds of about 55 kilometres per hour near its centre was located at 23.4 degrees north, 122.7 degrees east. It is forecast to move northeast at about 30 kilometres per hour across the western North Pacific.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    Northeast force 5 to 6, occasionally force 7.
    Isolated squally showers and thunderstorms.
    Moderate to rough seas.

    Nan'ao:
    Northeast force 6 to 7, occasionally force 8.
    Isolated squally showers and thunderstorms.
    Rough to very rough seas.

    Shanwei, South of Hong Kong and Shangchuan Dao:
    Northeast force 6 to 7.
    Scattered heavy squally showers and thunderstorms.
    Rough seas.

    Outlook for the next 48 hours
    Easterly winds of force 6 to 7, becoming 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 force 3

    Shantou Wind south-southwest force 1
      Visibility 30 Kilometres

    Huangmaozhou Wind east force 4

    Macau Wind north-northeast force 3
      Visibility 11 Kilometres

    Xisha Wind west-southwest force 5
      Visibility 9 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 17:30 HKT 15/JUN/2018
    (Next update at 01:30 HKT 16/JUN/2018)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB.
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     A BROAD TROUGH OF LOW PRESSURE IS BRINGING
     UNSETTLED WEATHER TO THE NORTHERN AND CENTRAL
     PARTS OF THE SOUTH CHINA SEA.
     AT 4 P.M., TROPICAL DEPRESSION GAEMI WAS CENTRED
     NEAR 23.0 DEGREES NORTH, 121.4 DEGREES EAST.  IT
     IS FORECAST TO MOVE NORTHEAST AT ABOUT 12 KNOTS
     ACROSS THE WESTERN NORTH PACIFIC.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  080/10, OCNL 15 LATER
                  TEMPO VRB/15G25 IN TS
       OFFSHORE:  080/15-20, OCNL 25 LATER             29-26
   B.   2000 FT:  100/10-15, OCNL 20 LATER             22
   C.   5000 FT:  120/15                               18
   D.  10000 FT:  150/10                               10
   E.  18000 FT:  310/10                               MS1
   F.  24000 FT:  340/10                               MS10
   G.  30000 FT:  030/15                               MS23
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY CLOUDY WITH ISOLATED SHOWERS.  A FEW
      THUNDERSTORMS OVER THE SEAS LATER.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT  SCT 3500 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: 17500 FT
      10 DEG. C LEVEL(S) : 10000, 12000 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS AND OFFSHORE.
                      MOD NEAR HILLS.
   N. SEA STATE     : 2.0-3.0 M     SEA TEMPERATURE    : 28 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH EAST TO NORTHEASTERLY WINDS,
     OCCASIONALLY STRONG OFFSHORE.  SUNNY PERIODS AND
     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 18:15 HKT on 15 Jun 18

    VHHK SIGMET 1 VALID 151015/151415 VHHH- VHHK HONG KONG FIR EMBD TS FCST S OF N1900 TOP FL400 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

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    Bulletin issued at 21:30 HKT 15/Jun/2018


    Tropical Cyclone Warning

    At 151200 UTC, Tropical Depression Gaemi (1806) with central pressure 992 hectopascals was centred within 90 nautical miles of two four point six degrees north (24.6 N) one two three point seven degrees east (123.7 E) and is forecast to move northeast at about 15 knots for the next 12 hours.

    Maximum winds near the centre are estimated to be 30 knots.

    Radius of over 2 metre waves 90 nautical miles.

    Forecast position and intensity at 160000 UTC
    Become extratropical low.



    The Hong Kong Observatory's tropical cyclone warnings for shipping are issued about one and a half hours after the time of observation. They incorporate additional information derived from surface and upper-air data and may therefore be slightly different from the real-time satellite or radar-based positions given in the hourly bulletins for public.

    While the forecast positions and track indicate the most likely future path of the tropical cyclone, they may deviate from the actual path taken by the storm.

    Tropical Cyclone Track
    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 15/Jun/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     28.6 C
Minimum Air Temperature                     25.4 C
Grass Minimum Temperature                   25.2 C
Relative Humidity                        75 - 95 Percent
Rainfall                                     1.3 mm 
Total rainfall since 1st January           546.5 mm
Against an average of                      857.2 mm

Other Stations                Min                  Max
King's Park                  24.7 C               28.8 C
Wong Chuk Hang               24.8 C               27.8 C
Ta Kwu Ling                  24.9 C               28.5 C
Lau Fau Shan                 24.6 C               28.4 C
Tai Po                       24.9 C               27.6 C
Sha Tin                      25.3 C               28.0 C
Tuen Mun                     25.1 C               28.9 C
Tseung Kwan O                24.2 C               28.1 C
Sai Kung                     25.0 C               27.7 C
Cheung Chau                  24.2 C               29.6 C
Chek Lap Kok                 25.9 C               29.7 C
Tsing Yi                     25.1 C               29.7 C
Shek Kong                    24.5 C               27.6 C
Tsuen Wan Ho Koon            23.8 C               27.8 C
Tsuen Wan Shing Mun Valley   24.6 C               28.9 C
Hong Kong Park               24.5 C               28.7 C
Shau Kei Wan                 24.6 C               28.9 C
Kowloon City                 24.7 C               29.2 C
Happy Valley                 25.2 C               29.2 C
Wong Tai Sin                 24.5 C               29.2 C
Stanley                      24.9 C               28.1 C
Kwun Tong                    24.9 C               29.4 C
Sham Shui Po                 25.3 C               30.1 C
Kai Tak Runway Park          25.4 C               28.8 C
Yuen Long Park               24.9 C               28.4 C
Tai Mei Tuk               24.8 C               27.2 C

Duration of sunshine (King's Park):              0.6 H
The mean UV index recorded at King's Park yesterday was 2,
the UV intensity was Low.
The maximum UV index for yesterday was 5.
 

Yesterday's (14 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                           0.13
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 14 Jun
     2003copy right image | Important notices | Privacy policy Last revision date: <15 Jun 2018> 

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