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Bulletin issued at 09:02 HKT 11/Nov/2018

At 9 a.m. at the Hong Kong Observatory the air temperature was 23 degrees Celsius and the relative humidity 80 per cent.
During the past hour the mean UV Index recorded at King's Park was 0.7. The intensity of UV radiation was low.

Please be reminded that:

The Fire Danger Warning is Yellow and the fire risk is high.

The air temperatures at other places were:

King's Park 23 degrees;
Wong Chuk Hang 23 degrees;
Ta Kwu Ling 24 degrees;
Lau Fau Shan 23 degrees;
Tai Po 23 degrees;
Sha Tin 23 degrees;
Tuen Mun 24 degrees;
Tseung Kwan O 23 degrees;
Sai Kung 23 degrees;
Cheung Chau 23 degrees;
Chek Lap Kok 24 degrees;
Tsing Yi 23 degrees;
Shek Kong 24 degrees;
Tsuen Wan Ho Koon 22 degrees;
Tsuen Wan Shing Mun Valley 23 degrees;
Hong Kong Park 23 degrees;
Shau Kei Wan 23 degrees;
Kowloon City 23 degrees;
Happy Valley 23 degrees;
Wong Tai Sin 23 degrees;
Stanley 24 degrees;
Kwun Tong 23 degrees;
Sham Shui Po 23 degrees;
Kai Tak Runway Park 23 degrees;
Yuen Long Park 25 degrees;
Tai Mei Tuk 25 degrees.

Between midnight and 9 a.m. the minimum temperature was 22.5 degrees Celsius at the Hong Kong Observatory.


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


Climatological Information for 11 Nov

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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Bulletin updated at 08:45 HKT 11/Nov/2018

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

A fresh easterly airstream is affecting the coast of Guangdong.

Weather forecast for today

Sunny periods. The maximum temperature will be about 26 degrees. Moderate easterly winds, occasionally fresh offshore.

Outlook : Sunny periods in the next couple of days.


(The above forecast period is valid up to 23:59 HKT today, 11/11/2018; 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 09:00 HKT 11/Nov/2018

GALE WARNING AREAS: BALINTANG AND SCARBOROUGH.

GENERAL SITUATION AT 102100 UTC:
AN EASTERLY AIRSTREAM IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 110100 UTC:

HONG KONG= E 5-6, OCNL 7. LGT RAIN PATCHES AT FIRST. SEA UP TO 4 M. SWELL E 2 M. TEMP 26-23 C. =
KWANGTUNG= E 5-6, OCNL 7. LGT RAIN PATCHES. SEA UP TO 4 M. SWELL E TO NE 2-3 M. =
TAIWAN STRAIT= NE 5-6, OCNL 7. LGT RAIN PATCHES. SEA UP TO 4 M. SWELL NE 2-3 M. =
BASHI= E TO NE 6-7. LGT RAIN PATCHES. SEA 3-4 M. SWELL E TO NE 2-3 M. =
PRATAS= E 6-7. LGT RAIN PATCHES. SEA 3-4 M. SWELL E TO NE 2-3 M. =
BALINTANG= E 6-7, OCNL 8. LGT RAIN PATCHES. SEA UP TO 6 M. SWELL E TO NE 2-3 M. =
SCARBOROUGH= E TO NE 6-7, OCNL 8. FINE. SEA UP TO 6 M. SWELL E TO NE 2-3 M. =
PARACEL= E 5-6, OCNL 7. LGT RAIN PATCHES. SEA UP TO 4 M. SWELL E 2-3 M. =
TONKIN= E 5-6. LGT RAIN PATCHES. SEA 2-3 M. SWELL E UP TO 2 M. =
DANANG= E 5-6. LGT RAIN PATCHES. SEA 2-3 M. SWELL E 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 09:30 HKT 11/Nov/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 9:30 a.m. on 11 November 2018

    Warnings:
    Strong winds in all areas.

    Weather Situation:
    An easterly airstream is affecting the coastal waters of Guangdong.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East force 5 to 6, occasionally force 7.
    A few light rain patches.
    Moderate to rough seas.

    Nan'ao, Shanwei, South of Hong Kong and Shangchuan Dao:
    East force 5 to 6, occasionally force 7.
    Moderate to rough seas.

    Outlook for the next 48 hours
    East to northeasterly winds of force 5 to 6, becoming force 7.

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

    Waglan Island Wind east-northeast force 5

    Shantou Wind east force 1
      Visibility 6 Kilometres

    Dongsha Wind east-northeast force 3
      Visibility 9 Kilometres

    Huangmaozhou Wind east force 6

    Macau Wind east force 3
      Visibility 10 Kilometres

    Xisha Wind east-northeast force 2
      Visibility 22 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 09:00 HKT 11/NOV/2018
    (Next update at 12:30 HKT 11/NOV/2018)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AN EASTERLY AIRSTREAM IS AFFECTING THE COAST OF
     GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  080/10-15
       OFFSHORE:  080/15-20, OCNL 25                   24-27
   B.   2000 FT:  110/15-20, OCNL 25                   19
   C.   5000 FT:  140/15                               16
   D.  10000 FT:  220/10                               9
   E.  18000 FT:  270/25                               MS6
   F.  24000 FT:  270/40                               MS18
   G.  30000 FT:  270/55                               MS28
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      2200 - 2400 FT.
   I. WEATHER       : 
      SUNNY PERIODS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT  SCT 4000 FT.
   K. VISIBILITY    : 9 KM.
   L. 0 DEG. C LEVEL: 15500 FT
      10 DEG. C LEVEL(S) : 7600, 9800 FT
   M. TURBULENCE    : MOD TO SEV OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 2.0-3.0 M     SEA TEMPERATURE    : 25 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EASTERLY WINDS, OCCASIONALLY FRESH
     OFFSHORE.  MAINLY CLOUDY.=

    ===================================================================
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 11/Nov/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     25.4 C
Minimum Air Temperature                     23.4 C
Grass Minimum Temperature                   22.0 C
Relative Humidity                        71 - 82 Percent
Rainfall                                      Trace 
Total rainfall since 1st January          2086.0 mm
Against an average of                     2348.4 mm

Other Stations                Min                  Max
King's Park                  22.6 C               25.2 C
Wong Chuk Hang               22.9 C               26.2 C
Ta Kwu Ling                  22.7 C               26.7 C
Lau Fau Shan                 21.3 C               27.8 C
Tai Po                       22.3 C               23.8 C
Sha Tin                      22.8 C               26.0 C
Tuen Mun                     22.2 C               26.5 C
Tseung Kwan O                22.7 C               25.8 C
Sai Kung                     23.3 C               24.3 C
Cheung Chau                  22.1 C               27.9 C
Chek Lap Kok                 23.5 C               27.0 C
Tsing Yi                     23.5 C               25.4 C
Shek Kong                    22.9 C               26.4 C
Tsuen Wan Ho Koon            21.2 C               24.8 C
Tsuen Wan Shing Mun Valley   22.9 C               26.0 C
Hong Kong Park               23.3 C               24.4 C
Shau Kei Wan                 22.7 C               23.7 C
Kowloon City                 22.5 C               26.5 C
Happy Valley                 23.1 C               25.9 C
Wong Tai Sin                 23.0 C               26.2 C
Stanley                      22.7 C               25.3 C
Kwun Tong                    22.5 C               24.6 C
Sham Shui Po                 23.2 C               27.0 C
Kai Tak Runway Park          23.2 C               24.6 C
Yuen Long Park               21.6 C               26.5 C
Tai Mei Tuk               22.5 C               26.2 C

Duration of sunshine (King's Park):              0.8 H
The mean UV index recorded at King's Park yesterday was 1,
the UV intensity was Low.
The maximum UV index for yesterday was 4.
 

Yesterday's (10 Nov 2018) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.09 to
0.15 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                         0.12
Sha Tau Kok                         0.10
Kwun Tong                           0.12
Sai Wan Ho                          0.09
King's Park                         0.15
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 10 Nov
     2003copy right image | Important notices | Privacy policy Last revision date: <11 Nov 2018> 

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