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Bulletin issued at 07:31 HKT 15/Sep/2019

At 7 a.m. at the Hong Kong Observatory the air temperature was 29 degrees Celsius and the relative humidity 81 per cent.

Hot weather might cause adverse health effects. The Observatory advises the public to stay on the alert.

Please be reminded that:

The Thunderstorm Warning has been issued. It will remain effective until 8:30 a.m. today. Isolated thunderstorms are expected to occur over Hong Kong.

The air temperatures at other places were:

King's Park 28 degrees;
Wong Chuk Hang 27 degrees;
Ta Kwu Ling 26 degrees;
Lau Fau Shan 25 degrees;
Tai Po 27 degrees;
Sha Tin 27 degrees;
Tuen Mun 26 degrees;
Tseung Kwan O 27 degrees;
Sai Kung 27 degrees;
Cheung Chau 26 degrees;
Chek Lap Kok 28 degrees;
Tsing Yi 28 degrees;
Shek Kong 26 degrees;
Tsuen Wan Ho Koon 25 degrees;
Tsuen Wan Shing Mun Valley 26 degrees;
Shau Kei Wan 27 degrees;
Kowloon City 28 degrees;
Happy Valley 29 degrees;
Wong Tai Sin 28 degrees;
Stanley 28 degrees;
Kwun Tong 27 degrees;
Sham Shui Po 28 degrees;
Kai Tak Runway Park 29 degrees;
Yuen Long Park 26 degrees;
Tai Mei Tuk 27 degrees.

Between 5:45 and 6:45 a.m., the rainfall recorded in various regions were:

Sai Kung 0 to 5 mm;
Tai Po 0 to 1 mm.


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


Climatological Information for 15 Sep

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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Automatic Regional Weather Forecast in Hong Kong & Pearl River Delta Region

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UV Index Forecast |  Weather Information for South China Coastal Waters

Bulletin updated at 06:45 HKT 15/Sep/2019

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

Winds are weak over the coast of Guangdong. Meanwhile, showers are affecting the region.

Weather forecast for today

Mainly cloudy with a few showers. There will be thunderstorms in the morning and at night. Hot with sunny intervals during the day. The maximum temperature will be about 32 degrees. Light winds.

Outlook : Sunny intervals and a few showers in the next couple of days.


(The above forecast period is valid up to 23:59 HKT today, 15/09/2019; 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 14/Sep/2019

N0 WARNING.

GENERAL SITUATION AT 140900 UTC:
AN NORTHEASTERLY AIRSTREAM IS GENERALLY AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 141300 UTC:

HONG KONG= E TO NE 4. ISOL SHOWERS AND TS. TEMP 27-32 C. =
KWANGTUNG= E TO NE 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. =
TAIWAN STRAIT= NE 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. =
BASHI= N TO NW 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. SWELL E 2-3 M. =
PRATAS= NE 4-5. ISOL SHOWERS. SEA UP TO 2 M. SWELL E 2 M. =
BALINTANG= N TO NW 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. SWELL E 2-3 M. =
SCARBOROUGH= E TO SE 4-5. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 2 M. =
PARACEL= N TO NE 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. =
TONKIN= NE 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. =
DANANG= NE 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
  • 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 05:30 HKT 15/Sep/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 5:30 a.m. on 15 September 2019

    Weather Situation:
    An easterly airstream is affecting the south China coastal waters.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East to northeast force 4.
    Scattered showers and squally thunderstorms.
    Moderate seas.

    Nan'ao, Shanwei and South of Hong Kong:
    East to northeast force 4 to 5.
    Moderate seas.

    Shangchuan Dao:
    East to northeast force 4 to 5.
    Isolated showers and squally thunderstorms.
    Moderate seas.

    Outlook for the next 48 hours
    East to northeasterly winds of force 5 to 6, up to force 7 in east. Isolated showers and thunderstorms.

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

    Waglan Island Wind east-northeast force 2
      Visibility 20 Kilometres

    Shantou Wind west force 1
      Visibility 14 Kilometres in rain

    Dongsha Wind northeast force 2
      Visibility 10 Kilometres

    Huangmaozhou Wind east force 3

    Macau Wind north force 1
      Visibility 24 Kilometres

    Xisha Wind east-northeast force 2
      Visibility 21 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 15/SEP/2019
    (Next update at 9:00-9:30 HKT 15/SEP/2019)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     WINDS ARE WEAK OVER THE COAST OF GUANGDONG.
     MEANWHILE, SHOWERS ARE AFFECTING THE REGION.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  VRB/5
                  TEMPO VRB/15G25 IN TS
       OFFSHORE:  100/5-10                             28-33
   B.   2000 FT:  120/5-10                             24
   C.   5000 FT:  050/10                               18
   D.  10000 FT:  060/20                               11
   E.  18000 FT:  090/20                               MS1
   F.  24000 FT:  140/10                               MS12
   G.  30000 FT:  160/10                               MS24
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY CLOUDY WITH ISOLATED SHOWERS AND
      THUNDERSTORMS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2500 FT 
      TEMPO CB 1500 FT SCT 2500 FT BKN 5000 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) : 10800 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS.
   N. SEA STATE     : 0.5-1.0 M     SEA TEMPERATURE    : 29 DEG
IV.  FURTHER OUTLOOK: 
     LIGHT WINDS. SUNNY INTERVALS WITH ISOLATED
     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.

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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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    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 15/Sep/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     32.3 C
Minimum Air Temperature                     28.4 C
Grass Minimum Temperature                   27.5 C
Relative Humidity                        69 - 87 Percent
Rainfall                                      Trace 
Total rainfall since 1st January          2189.1 mm
Against an average of                     2076.9 mm

Other Stations                Min                  Max
King's Park                  27.8 C               32.1 C
Wong Chuk Hang               26.4 C               32.3 C
Ta Kwu Ling                  25.7 C               34.0 C
Lau Fau Shan                 23.3 C               32.0 C
Tai Po                       27.0 C               31.5 C
Sha Tin                      27.0 C               33.4 C
Tuen Mun                     24.5 C               32.2 C
Tseung Kwan O                25.9 C               33.3 C
Sai Kung                     27.8 C               33.2 C
Cheung Chau                  25.9 C               33.8 C
Chek Lap Kok                 25.3 C               34.1 C
Tsing Yi                     26.8 C               32.6 C
Shek Kong                    25.0 C               33.0 C
Tsuen Wan Ho Koon            25.0 C               30.2 C
Tsuen Wan Shing Mun Valley   25.6 C               32.6 C
Shau Kei Wan                 27.6 C               31.8 C
Kowloon City                 27.5 C               32.6 C
Happy Valley                 27.1 C               34.4 C
Wong Tai Sin                 27.1 C               32.6 C
Stanley                      26.9 C               33.0 C
Kwun Tong                    27.8 C               33.1 C
Sham Shui Po                 27.1 C               33.0 C
Kai Tak Runway Park          27.5 C               32.3 C
Yuen Long Park               24.5 C               33.7 C
Tai Mei Tuk               27.2 C               34.3 C

Duration of sunshine (King's Park):              4.8 H
The mean UV index recorded at King's Park yesterday was 3,
the UV intensity was Moderate.
The maximum UV index for yesterday was 10.
 

Yesterday's (14 Sep 2019) 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                             0.08
Kat O                               0.10
Yuen Ng Fan                         0.12
Tai Mei Tuk                         0.10
Sha Tau Kok                         0.10
Kwun Tong                           0.12
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 14 Sep
     2003copy right image | Important notices | Privacy policy Last revision date: <15 Sep 2019> 

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