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Bulletin issued at 04:02 HKT 29/Jun/2018

At 4 a.m. at the Hong Kong Observatory the air temperature was 29 degrees Celsius and the relative humidity 82 per cent.

Please be reminded that:

The Very Hot Weather Warning is now in force. Very hot weather might cause adverse health effects. Members of the public should take care to avoid heatstroke.

The air temperatures at other places were:

King's Park 28 degrees;
Wong Chuk Hang 29 degrees;
Ta Kwu Ling 25 degrees;
Lau Fau Shan 28 degrees;
Tai Po 28 degrees;
Sha Tin 29 degrees;
Tuen Mun 28 degrees;
Tseung Kwan O 27 degrees;
Sai Kung 28 degrees;
Cheung Chau 28 degrees;
Chek Lap Kok 29 degrees;
Tsing Yi 29 degrees;
Shek Kong 27 degrees;
Tsuen Wan Ho Koon 27 degrees;
Tsuen Wan Shing Mun Valley 28 degrees;
Hong Kong Park 29 degrees;
Shau Kei Wan 29 degrees;
Kowloon City 28 degrees;
Happy Valley 29 degrees;
Wong Tai Sin 29 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.


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


Climatological Information for 29 Jun

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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Bulletin updated at 03:45 HKT 29/Jun/2018

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

The weather is generally fine over southeastern China.

Besides, the area of low pressure over the seas east of the Philippines has intensified into a tropical depression. At 2 a.m., the tropical depression was centred about 740 kilometres south-southeast of Okinawa. It is forecast to move northwest at about 10 kilometres per hour towards the vicinity of the Ryukyu Islands and intensify gradually.

Weather forecast for today

Mainly fine apart from isolated showers. The minimum temperature will be about 28 degrees. Very hot during the day with a maximum temperature of around 33 degrees. Moderate southwesterly winds.

Outlook : Very hot with sunny periods on Saturday. A few showers early next week.


(The above forecast period is valid up to 23:59 HKT today, 29/06/2018; Regular update at : around 45 minutes past each hour, 16:15 HKT and 23:15 HKT)

Information on Tropical Cyclones

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MARINE FORECAST
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Marine Forecast

Weather Information for the Marine Community

Bulletin issued at 21:00 HKT 28/Jun/2018

N0 WARNING.

GENERAL SITUATION AT 280900 UTC:
A SOUTHWESTERLY AIRSTREAM IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 281300 UTC:

HONG KONG= S TO SW 4, OCNL 5. ISOL SHOWERS AND TS. SEA UP TO 2 M. TEMP 28-33 C. =
KWANGTUNG= SW 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. =
TAIWAN STRAIT= SW 4-5, OCNL 6. ISOL SHOWERS AND TS. SEA UP TO 3 M. =
BASHI= SW 4-5, OCNL 6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 3 M. =
PRATAS= SW 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. =
BALINTANG= SW 4-5. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 2 M. =
SCARBOROUGH= SW 4-5. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 2 M. =
PARACEL= S TO SW 4-5, OCNL 6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 3 M. =
TONKIN= S TO SW 4-5, OCNL 6. ISOL SHOWERS AND TS. SEA UP TO 3 M. =
DANANG= S TO SW 4-5, OCNL 6. ISOL SHOWERS AND TS. SEA UP TO 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 03:30 HKT 29/Jun/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 3:30 a.m. on 29 June 2018

    Weather Situation:
    A southwesterly airstream is affecting the south China coastal waters.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    Southwest force 4, occasionally force 5.
    Isolated showers and thunderstorms.
    Moderate seas.

    Nan'ao, Shanwei, South of Hong Kong and Shangchuan Dao:
    Southwest force 4 to 5.
    Isolated showers and thunderstorms.
    Moderate seas.

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

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

    Waglan Island Wind west-southwest force 4

    Shantou Wind west-southwest force 1
      Visibility 30 Kilometres

    Huangmaozhou Wind west-southwest force 4

    Macau Wind southwest force 1
      Visibility 23 Kilometres

    Xisha Wind southwest force 3
      Visibility 30 Kilometres

  • Explanation of Seas or Sea Waves
  • Explanation of Swells
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  • Visibility Readings in Hong Kong Waters
  • Map showing forecast areas
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    • WEATHER FORECAST FOR LOCAL AVIATION
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    Weather Forecast for Local Aviation

    Bulletin issued at 01:30 HKT 29/JUN/2018
    (Next update at 9:00-9:30 HKT 29/JUN/2018)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL
II.  SYNOPSIS OF THE WEATHER SITUATION :
     A SOUTHWESTERLY AIRSTREAM IS AFFECTING THE SOUTH CHINA
     COASTAL AREAS.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  220/5-10
       OFFSHORE:  220/10-15                            28-34
   B.   2000 FT:  240/10                               25
   C.   5000 FT:  260/10                               12
   D.  10000 FT:  280/10                               12
   E.  18000 FT:  340/10                               MS2
   F.  24000 FT:  040/10                               MS13
   G.  30000 FT:  060/15                               MS26
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY FINE APART FROM ISOLATED SHOWERS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT.
   K. VISIBILITY    : 10 KM. TEMPO 4000 M IN SHOWERS.
   L. 0 DEG. C LEVEL: 16500 FT      10 DEG. C LEVEL(S) : 12000 FT
   M. TURBULENCE    : NIL.
   N. SEA STATE     : 0.5-1.0 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE SOUTHWESTERLY WINDS. MAINLY FINE. 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 12:31 HKT on 28 Jun 18

    VHHK SIGMET 1 VALID 280435/280835 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N1942 E11624 - N1806 E11506 - N1900 E11424 - N2024 E11524 - N1942 E11624 TOP FL330 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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     2003copy right image | Important notices | Privacy policy Last revision date: <29 Jun 2018> 
    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 29/Jun/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     32.6 C
Minimum Air Temperature                     27.7 C
Grass Minimum Temperature                   26.0 C
Relative Humidity                        63 - 86 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January           633.8 mm
Against an average of                     1076.5 mm

Other Stations                Min                  Max
King's Park                  27.0 C               32.4 C
Wong Chuk Hang               26.0 C               31.3 C
Ta Kwu Ling                  23.4 C               33.8 C
Lau Fau Shan                 25.9 C               32.9 C
Tai Po                       25.0 C               34.7 C
Sha Tin                      24.7 C               33.1 C
Tuen Mun                     26.2 C               32.7 C
Tseung Kwan O                25.0 C               33.7 C
Sai Kung                     25.9 C               33.8 C
Cheung Chau                  26.3 C               33.5 C
Chek Lap Kok                 27.2 C               34.1 C
Tsing Yi                     26.0 C               32.7 C
Shek Kong                    24.8 C               33.9 C
Tsuen Wan Ho Koon            24.2 C               31.3 C
Tsuen Wan Shing Mun Valley   24.7 C               32.8 C
Hong Kong Park               26.4 C               32.3 C
Shau Kei Wan                 26.6 C               33.1 C
Kowloon City                 26.4 C               33.2 C
Happy Valley                 26.4 C               34.3 C
Wong Tai Sin                 25.3 C               33.4 C
Stanley                      26.5 C               31.5 C
Kwun Tong                    27.1 C               33.1 C
Sham Shui Po                 26.6 C               32.3 C
Kai Tak Runway Park          27.0 C               33.1 C
Yuen Long Park               24.8 C               34.2 C
Tai Mei Tuk               25.7 C               33.8 C

Duration of sunshine (King's Park):              11.2 H
The mean UV index recorded at King's Park yesterday was 6,
the UV intensity was High.
The maximum UV index for yesterday was 11.
 

Yesterday's (28 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                         0.11
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 28 Jun
     2003copy right image | Important notices | Privacy policy Last revision date: <29 Jun 2018> 

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