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Bulletin issued at 07:16 HKT 08/Sep/2018

At 7 a.m. at the Hong Kong Observatory the air temperature was 28 degrees Celsius and the relative humidity 82 per cent.

The air temperatures at other places were:

King's Park 27 degrees;
Wong Chuk Hang 27 degrees;
Ta Kwu Ling 26 degrees;
Lau Fau Shan 26 degrees;
Tai Po 27 degrees;
Sha Tin 27 degrees;
Tuen Mun 27 degrees;
Tseung Kwan O 26 degrees;
Sai Kung 27 degrees;
Cheung Chau 26 degrees;
Chek Lap Kok 27 degrees;
Tsing Yi 27 degrees;
Shek Kong 27 degrees;
Tsuen Wan Ho Koon 26 degrees;
Tsuen Wan Shing Mun Valley 26 degrees;
Hong Kong Park 28 degrees;
Shau Kei Wan 27 degrees;
Kowloon City 27 degrees;
Happy Valley 28 degrees;
Wong Tai Sin 27 degrees;
Stanley 26 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.

Between 5:45 and 6:45 a.m., lightning was detected within Hong Kong and Kowloon. The rainfall recorded in various regions were:

Islands District 0 to 6 mm;
Southern District 0 to 1 mm.


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


Climatological Information for 8 Sep

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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Bulletin updated at 06:45 HKT 08/Sep/2018

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

The northeast monsoon associated with a cold front is affecting the coastal areas of Guangdong.

Weather forecast for today

Mainly cloudy with a few showers. Thunderstorms at first. The maximum temperature will be about 29 degrees. It will be slightly cooler tonight. Temperature will drop to around 25 degrees. Moderate northeasterly winds.

Outlook : A few rain patches and slightly cooler weather tomorrow. Sunny intervals in the following couple of days.


(The above forecast period is valid up to 23:59 HKT today, 08/09/2018; 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 07/Sep/2018

N0 WARNING.

GENERAL SITUATION AT 070900 UTC:
COLD FRONT 23N 109E 25N 115E 27N 123E S 15KT.

MARINE FORECAST FOR 24 HOURS FROM 071300 UTC:

HONG KONG= S 3-4, BEC NE 5. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA BEC 2 M. TEMP 25-29 C. =
KWANGTUNG= S 4-5, BEC NE 5-6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 2 M, BEC 3 M. =
TAIWAN STRAIT= S 4-5, BEC NE 6-7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 2 M, BEC 3-4 M. =
BASHI= S TO SE 4-5, W 5-6 LATER. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA UP TO 2 M, 3 M LATER. SWELL SW UP TO 2 M. =
PRATAS= S 4-5, BEC NE 4-5. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 2 M. SWELL SW UP TO 2 M. =
BALINTANG= SE 4-5, BEC W 5-6. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA UP TO 2 M, BEC 3 M. SWELL SW UP TO 2 M. =
SCARBOROUGH= S TO SW 4-5. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 2 M. SWELL SW UP TO 2 M. =
PARACEL= S 4-5, BEC NE 4-5. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 2 M. SWELL SW UP TO 2 M. =
TONKIN= NE 6-7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 3-4 M. =
DANANG= S 4-5, BEC NE 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.


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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 05:30 HKT 08/Sep/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 5:30 a.m. on 08 September 2018

    Warnings:
    Strong winds in Nan'ao.

    Weather Situation:
    The northeast monsoon is affecting the south China coastal waters.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    Northeast force 5.
    Isolated squally showers and thunderstorms.
    Moderate seas.

    Nan'ao:
    Northeast force 5 to 6.
    Isolated squally showers and thunderstorms.
    Moderate to rough seas.

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

    Outlook for the next 48 hours
    Northeasterly winds of force 6 to 7. Isolated squally showers and thunderstorms.

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

    Waglan Island Wind southeast force 1
      Visibility 6 Kilometres

    Shantou Wind west-northwest force 1
      Visibility 30 Kilometres

    Dongsha Wind west-southwest force 1
      Visibility 10 Kilometres

    Huangmaozhou Wind west-northwest force 4

    Macau Wind north force 2
      Visibility 15 Kilometres

    Xisha Wind south-southwest force 1
      Visibility 30 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 01:30 HKT 08/SEP/2018
    (Next update at 9:00-9:30 HKT 08/SEP/2018)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE NORTHEAST MONSOON 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:  030/10
                  TEMPO VRB/15G25 IN TS
       OFFSHORE:  030/10-15                            26-30
   B.   2000 FT:  030/10-15                            22
   C.   5000 FT:  040/10                               19
   D.  10000 FT:  090/10                               11
   E.  18000 FT:  040/10                               MS2
   F.  24000 FT:  030/10                               MS11
   G.  30000 FT:  020/15                               MS24
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY CLOUDY WITH A FEW SHOWERS AND
      THUNDERSTORMS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT  SCT 4000 FT.  TEMPO FEW CB 1000 FT
      SCT 2000 FT  BKN 4000 FT.
   K. VISIBILITY    : 9 KM.  TEMPO 4000 M IN SHOWERS.  TEMPO 2000 M IN TS.
   L. 0 DEG. C LEVEL: 16500 FT      10 DEG. C LEVEL(S) : 11000 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE NORTHEASTERLY WINDS.  MAINLY CLOUDY
     WITH A FEW SHOWERS. ISOLATED THUNDERSTORMS AT
     FIRST.=

    ===================================================================
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 07:10 HKT on 08 Sep 18

    VHHK SIGMET 2 VALID 071912/072312 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2154 E11642 - N1924 E11136 - N1930 E11130 - N2130 E11130 - N2242 E11424 - N2318 E11624 - N2154 E11642 TOP FL400 MOV S 10KT NC= VHHK SIGMET 3 VALID 072312/080312 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2154 E11642 - N1924 E11136 - N1930 E11130 - N2130 E11130 - N2242 E11424 - N2318 E11624 - N2154 E11642 TOP FL400 MOV S 5KT 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 08/Sep/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     31.2 C
Minimum Air Temperature                     28.0 C
Grass Minimum Temperature                   27.3 C
Relative Humidity                        73 - 87 Percent
Rainfall                                      Trace 
Total rainfall since 1st January          1632.2 mm
Against an average of                     1986.9 mm

Other Stations                Min                  Max
King's Park                  27.3 C               31.1 C
Wong Chuk Hang               26.3 C               31.5 C
Ta Kwu Ling                  25.6 C               33.6 C
Lau Fau Shan                 26.2 C               30.8 C
Tai Po                       26.5 C               31.6 C
Sha Tin                      26.5 C               33.0 C
Tuen Mun                     26.9 C               33.2 C
Tseung Kwan O                25.8 C               32.4 C
Sai Kung                     27.1 C               31.8 C
Cheung Chau                  26.6 C               31.8 C
Chek Lap Kok                 26.6 C               33.1 C
Tsing Yi                     26.6 C               32.7 C
Shek Kong                    25.9 C               33.0 C
Tsuen Wan Ho Koon            25.0 C               29.3 C
Tsuen Wan Shing Mun Valley   25.5 C               32.2 C
Hong Kong Park               26.8 C               33.2 C
Shau Kei Wan                 26.6 C               31.3 C
Kowloon City                 27.2 C               33.6 C
Happy Valley                 26.9 C               34.0 C
Wong Tai Sin                 26.7 C               33.1 C
Stanley                      26.9 C               32.2 C
Kwun Tong                    27.5 C               32.7 C
Sham Shui Po                 27.3 C               32.3 C
Kai Tak Runway Park          26.7 C               31.3 C
Yuen Long Park               25.7 C               34.1 C
Tai Mei Tuk               26.9 C               33.7 C

Duration of sunshine (King's Park):              3.5 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 6.
Sea surface temperature (Waglan Island):        27.5 C 

Yesterday's (07 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                           0.09
Tap Mun                             0.09
Kat O                               0.09
Yuen Ng Fan                         0.11
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 07 Sep
     2003copy right image | Important notices | Privacy policy Last revision date: <08 Sep 2018> 

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