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Bulletin issued at 06:16 HKT 02/Sep/2018

At 6 a.m. at the Hong Kong Observatory the air temperature was 25 degrees Celsius and the relative humidity 94 per cent.

A band of thundery showers now to the south of the Pearl River Estuary are gradually edging towards the coastal areas. It may affect Hong Kong in the next couple of hours. Members of the public should be on the alert.

The air temperatures at other places were:

King's Park 25 degrees;
Wong Chuk Hang 24 degrees;
Ta Kwu Ling 24 degrees;
Lau Fau Shan 24 degrees;
Sha Tin 25 degrees;
Tuen Mun 25 degrees;
Tseung Kwan O 24 degrees;
Sai Kung 25 degrees;
Cheung Chau 25 degrees;
Chek Lap Kok 26 degrees;
Tsing Yi 25 degrees;
Shek Kong 24 degrees;
Tsuen Wan Ho Koon 24 degrees;
Tsuen Wan Shing Mun Valley 25 degrees;
Hong Kong Park 25 degrees;
Shau Kei Wan 25 degrees;
Kowloon City 25 degrees;
Happy Valley 25 degrees;
Wong Tai Sin 25 degrees;
Stanley 25 degrees;
Kwun Tong 25 degrees;
Sham Shui Po 25 degrees;
Kai Tak Runway Park 25 degrees;
Yuen Long Park 24 degrees;
Tai Mei Tuk 25 degrees.


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


Climatological Information for 2 Sep

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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Bulletin updated at 05:45 HKT 02/Sep/2018

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

A trough of low pressure is bringing showers to the coastal areas of Guangdong.

At 5 a.m., Super Typhoon Jebi was centred about 1390 kilometres south of Osaka. It is forecast to move northwest at about 20 kilometres per hour across the western North Pacific.

Weather forecast for today

Mainly cloudy with occasional showers and isolated thunderstorms. Showers will ease off and there will be sunny intervals later. The maximum temperature will be around 29 degrees. Light to moderate southerly winds.

Outlook : Sunny periods and one or two showers in the next couple of days.


(The above forecast period is valid up to 23:59 HKT today, 02/09/2018; 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 01/Sep/2018

N0 WARNING.

GENERAL SITUATION AT 010900 UTC:
TROUGH 22N 108E 21N 110E 23N 116E QSTNR.

MARINE FORECAST FOR 24 HOURS FROM 011300 UTC:

HONG KONG= S 3-4. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. TEMP 25-31 C. =
KWANGTUNG= S TO SW 4, OCNL 5. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 2 M. =
TAIWAN STRAIT= S TO SW 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. =
BASHI= E 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. =
PRATAS= S TO SE 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. =
BALINTANG= E 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. =
SCARBOROUGH= E TO NE 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. =
PARACEL= S 4-5. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 2 M. =
TONKIN= S 4-5, OCNL 6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 3 M. =
DANANG= S 4-5. DOWN TO 4000 M IN ISOL SQUALLY 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
  • Tidal Information

    • SOUTH CHINA COASTAL WATERS
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    South China Coastal Waters

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    9-day Weather Forecast | UV Index Forecast | Weather Information for Fishermen

    Bulletin issued at 05:30 HKT 02/Sep/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 5:30 a.m. on 02 September 2018

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

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    South force 3 to 4.
    Scattered squally showers and thunderstorms.
    Slight to moderate seas.

    Nan'ao:
    South to southwest force 4, occasionally force 5.
    Moderate seas.

    Shanwei, South of Hong Kong and Shangchuan Dao:
    South force 4, occasionally force 5.
    Isolated squally showers and thunderstorms.
    Moderate seas.

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

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

    Waglan Island Wind north-northeast force 3
      Visibility 14 Kilometres

    Shantou Wind west force 1
      Visibility 7 Kilometres

    Dongsha Wind south-southwest force 1
      Visibility 10 Kilometres

    Huangmaozhou Wind south-southeast force 2

    Macau Wind south-southeast force 2
      Visibility 8 Kilometres

    Xisha Wind south-southeast force 2
      Visibility 21 Kilometres

  • Explanation of Seas or Sea Waves
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  • 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 02/SEP/2018
    (Next update at 9:00-9:30 HKT 02/SEP/2018)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     A TROUGH OF LOW PRESSURE IS BRINGING UNSETTLED
     WEATHER TO 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:  180/5-10
                  TEMPO VRB/15G25 IN TS
       OFFSHORE:  170/10, OCNL 15                      26-30
   B.   2000 FT:  190/10, OCNL 15                      23
   C.   5000 FT:  200/10                               18
   D.  10000 FT:  250/15                               10
   E.  18000 FT:  140/10                               MS1
   F.  24000 FT:  090/10                               MS12
   G.  30000 FT:  050/20                               MS24
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY CLOUDY WITH ISOLATED SQUALLY SHOWERS AND
      THUNDERSTORMS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2500 FT  SCT 4500 FT.  TEMPO FEW CB 1000 FT
      SCT 2000 FT  BKN 6000 FT.
   K. VISIBILITY    : 8 KM.  TEMPO 3000 M IN SHOWERS. TEMPO 2000 M IN TS.
   L. 0 DEG. C LEVEL: 17000 FT      10 DEG. C LEVEL(S) : 10000 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 26 DEG
IV.  FURTHER OUTLOOK: 
     LIGHT TO MODERATE SOUTHERLY WINDS. MAINLY CLOUDY
     WITH ISOLATED SQUALLY SHOWERS AND THUNDERSTORMS.=

    ===================================================================
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 03:00 HKT on 02 Sep 18

    VHHK SIGMET 5 VALID 011900/012300 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2154 E11536 - N2018 E11342 - N2042 E11200 - N2130 E11136 - N2230 E11400 - N2300 E11536 - N2154 E11536 TOP FL340 MOV NE 10KT INTSF=

    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 02/Sep/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     27.9 C
Minimum Air Temperature                     25.0 C
Grass Minimum Temperature                   25.5 C
Relative Humidity                        88 - 97 Percent
Rainfall                                    32.0 mm 
Total rainfall since 1st January          1622.0 mm
Against an average of                     1918.8 mm

Other Stations                Min                  Max
King's Park                  24.7 C               27.3 C
Wong Chuk Hang               24.4 C               27.4 C
Ta Kwu Ling                  24.3 C               27.7 C
Lau Fau Shan                 23.9 C               26.8 C
Sha Tin                      24.4 C               27.7 C
Tuen Mun                     24.6 C               27.3 C
Tseung Kwan O                24.0 C               26.9 C
Sai Kung                     23.9 C               27.5 C
Cheung Chau                  24.3 C               27.1 C
Chek Lap Kok                 25.3 C               28.5 C
Tsing Yi                     24.7 C               28.3 C
Shek Kong                    24.6 C               28.5 C
Tsuen Wan Ho Koon            23.8 C               26.1 C
Tsuen Wan Shing Mun Valley   24.3 C               27.2 C
Hong Kong Park               24.0 C               27.8 C
Shau Kei Wan                 23.7 C               27.4 C
Kowloon City                 24.0 C               27.4 C
Happy Valley                 25.0 C               28.2 C
Wong Tai Sin                 24.6 C               27.8 C
Stanley                      23.9 C               27.6 C
Kwun Tong                    24.5 C               27.5 C
Sham Shui Po                 24.6 C               28.0 C
Kai Tak Runway Park          24.8 C               27.7 C
Yuen Long Park               24.4 C               27.8 C
Tai Mei Tuk               23.9 C               26.6 C

Duration of sunshine (King's Park):              0.0 H
The mean UV index recorded at King's Park yesterday was 0.7,
the UV intensity was Low.
The maximum UV index for yesterday was 1.
 

Yesterday's (01 Sep 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                           0.08
Tap Mun                             0.09
Kat O                               0.09
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                        0.14

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 01 Sep
     2003copy right image | Important notices | Privacy policy Last revision date: <02 Sep 2018> 

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