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Bulletin issued at 00:02 HKT 08/Sep/2019

At midnight at the Hong Kong Observatory the air temperature was 29 degrees Celsius and the relative humidity 83 per cent.

The air temperatures at other places were:

King's Park 29 degrees;
Wong Chuk Hang 27 degrees;
Ta Kwu Ling 28 degrees;
Lau Fau Shan 28 degrees;
Tai Po 28 degrees;
Sha Tin 29 degrees;
Tuen Mun 29 degrees;
Tseung Kwan O 27 degrees;
Sai Kung 28 degrees;
Cheung Chau 27 degrees;
Chek Lap Kok 30 degrees;
Tsing Yi 27 degrees;
Shek Kong 27 degrees;
Tsuen Wan Ho Koon 26 degrees;
Tsuen Wan Shing Mun Valley 27 degrees;
Shau Kei Wan 29 degrees;
Kowloon City 28 degrees;
Happy Valley 29 degrees;
Wong Tai Sin 29 degrees;
Stanley 28 degrees;
Kwun Tong 29 degrees;
Sham Shui Po 28 degrees;
Kai Tak Runway Park 29 degrees;
Yuen Long Park 29 degrees;
Tai Mei Tuk 29 degrees.


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


Climatological Information for 8 Sep

Regional Weather in Hong Kong

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Bulletin updated at 00:00 HKT 08/Sep/2019

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

A continental airstream brought generally fine weather to Guangdong yesterday. Locally, it was mainly fine and very hot. Temperatures over the territory rose to 33 degrees or above. Thundery showers triggered by high temperatures brought more than 5 millimetres of rainfall to parts of the territory in the afternoon. Winds are expected to be weak over the coast of Guangdong in the next couple of days. The weather will be generally fine and hot over the region.

Weather forecast for Hong Kong (Sunday, 8 Sep 2019)

Mainly cloudy with isolated showers. Sunny periods and some haze during the day. Temperatures will range between 27 and 33 degrees. One or two thunderstorms in the afternoon. Light winds.

Outlook : Hot with sunny periods and one or two showers in the following couple of days.


(The above forecast period is valid up to 23:59 HKT today, 08/09/2019; 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 07/Sep/2019

N0 WARNING.

GENERAL SITUATION AT 070900 UTC:
LOW 1002 HPA 19N 116E QSTNR INTST NC

MARINE FORECAST FOR 24 HOURS FROM 071300 UTC:

HONG KONG= NW 3-4. ISOL SHOWERS AND TS. TEMP 27-33 C. =
KWANGTUNG= NW 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. =
TAIWAN STRAIT= S TO SW 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. SWELL SW 2 M. =
BASHI= SW 5-6. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL SW 2-3 M. =
PRATAS= W TO SW 5-6. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL SW 2-3 M. =
BALINTANG= SW 5-6, OCNL 7. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA UP TO 4 M. SWELL SW 2-3 M. =
SCARBOROUGH= SW 5-6, OCNL 7. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA UP TO 4 M. SWELL SW 3 M. =
PARACEL= W TO SW 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. SWELL SW 3 M. =
TONKIN= SW 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. =
DANANG= W TO SW 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 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 23:30 HKT 07/Sep/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 11:30 p.m. on 07 September 2019

    Weather Situation:
    A broad trough of low pressure is bringing unsettled weather to the northern part of the South China Sea.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    Northwest force 3 to 4.
    Isolated showers and thunderstorms.
    Slight to moderate seas.

    Nan'ao:
    West to southwest force 4 to 5.
    Isolated showers and thunderstorms.
    Moderate seas.

    Shanwei:
    East to northeast force 4 to 5, becoming northwest force 4 to 5 later.
    Isolated showers and thunderstorms.
    Moderate seas.

    South of Hong Kong and Shangchuan Dao:
    Northwest force 4 to 5.
    Isolated showers and thunderstorms.
    Moderate seas.

    Outlook for the next 48 hours
    South to southwesterly winds of force 4 to 5. Isolated showers and thunderstorms.

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

    Waglan Island Wind west-southwest force 2
      Visibility 37 Kilometres

    Shantou Wind east-southeast force 1
      Visibility 30 Kilometres

    Dongsha Wind south-southeast force 2
      Visibility 10 Kilometres

    Huangmaozhou Wind west-southwest force 2

    Macau Wind southwest force 1
      Visibility 21 Kilometres

    Xisha Wind southwest force 2
      Visibility 13 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 07/SEP/2019
    (Next update at 01:30 HKT 08/SEP/2019)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     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 PART OF THE
     SOUTH CHINA SEA.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1900 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  VRB/5
                  TEMPO VRB/15G25 IN TS
       OFFSHORE:  080/10                               34-27
   B.   2000 FT:  020/10                               24
   C.   5000 FT:  030/10                               20
   D.  10000 FT:  350/10                               11
   E.  18000 FT:  320/15                               MS2
   F.  24000 FT:  350/25                               MS15
   G.  30000 FT:  010/30                               MS24
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      CLOUDY PERIODS WITH ISOLATED SHOWERS. ISOLATED
      THUNDERSTORMS AT FIRST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT SCT 4000 FT
      TEMPO FEW CB 1000 FT SCT 2000 FT BKN 4000 FT
   K. VISIBILITY    : 7 KM. TEMPO 4000 M IN SHOWERS.
                      TEMPO 2500 M IN TS.
   L. 0 DEG. C LEVEL: 17000 FT      10 DEG. C LEVEL(S) : 11000 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS.
   N. SEA STATE     : 0.5-1.0 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     LIGHT WINDS. SUNNY PERIODS AND ISOLATED SHOWERS.
     SOME HAZE 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.

    There is no Significant Weather Information (SIGMET)

    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: <07 Sep 2019> 
    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 08/Sep/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     33.3 C
Minimum Air Temperature                     27.5 C
Grass Minimum Temperature                   26.7 C
Relative Humidity                        64 - 88 Percent
Rainfall                                     0.4 mm 
Total rainfall since 1st January          2188.7 mm
Against an average of                     1986.9 mm

Other Stations                Min                  Max
King's Park                  27.2 C               33.1 C
Wong Chuk Hang               25.3 C               32.5 C
Ta Kwu Ling                  24.9 C               35.9 C
Lau Fau Shan                 26.0 C               33.6 C
Tai Po                       25.4 C               32.7 C
Sha Tin                      25.6 C               35.2 C
Tuen Mun                     26.0 C               34.3 C
Tseung Kwan O                25.1 C               34.8 C
Sai Kung                     26.3 C               33.9 C
Cheung Chau                  25.6 C               35.2 C
Chek Lap Kok                 27.3 C               34.4 C
Tsing Yi                     26.0 C               33.8 C
Shek Kong                    25.0 C               35.6 C
Tsuen Wan Ho Koon            24.5 C               31.6 C
Tsuen Wan Shing Mun Valley   24.6 C               35.0 C
Shau Kei Wan                 26.4 C               32.9 C
Kowloon City                 26.8 C               35.6 C
Happy Valley                 26.3 C               35.5 C
Wong Tai Sin                 26.1 C               36.0 C
Stanley                      25.9 C               33.2 C
Kwun Tong                    27.3 C               34.6 C
Sham Shui Po                 26.6 C               34.8 C
Kai Tak Runway Park          26.8 C               32.6 C
Yuen Long Park               25.6 C               36.2 C
Tai Mei Tuk               26.2 C               36.0 C

Duration of sunshine (King's Park):              8.2 H
The mean UV index recorded at King's Park yesterday was 4,
the UV intensity was Moderate.
The maximum UV index for yesterday was 9.
 

Yesterday's (07 Sep 2019) 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                         0.14
Tai Mei Tuk                         0.10
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                      0.12
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 07 Sep
     2003copy right image | Important notices | Privacy policy Last revision date: <08 Sep 2019> 

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