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Bulletin issued at 01:02 HKT 10/Nov/2018

At 1 a.m. at the Hong Kong Observatory the air temperature was 24 degrees Celsius and the relative humidity 79 per cent.

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 24 degrees;
Tuen Mun 24 degrees;
Tseung Kwan O 23 degrees;
Sai Kung 24 degrees;
Cheung Chau 23 degrees;
Chek Lap Kok 25 degrees;
Tsing Yi 24 degrees;
Shek Kong 24 degrees;
Tsuen Wan Ho Koon 23 degrees;
Tsuen Wan Shing Mun Valley 24 degrees;
Hong Kong Park 24 degrees;
Shau Kei Wan 23 degrees;
Kowloon City 23 degrees;
Happy Valley 24 degrees;
Wong Tai Sin 24 degrees;
Stanley 23 degrees;
Kwun Tong 23 degrees;
Sham Shui Po 24 degrees;
Kai Tak Runway Park 24 degrees;
Yuen Long Park 24 degrees;
Tai Mei Tuk 23 degrees.


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


Climatological Information for 10 Nov

Regional Weather in Hong Kong

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Hong Kong Climatology


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Bulletin updated at 00:45 HKT 10/Nov/2018

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

A fresh to strong easterly airstream affected the coast of Guangdong yesterday. Locally, there were sunny periods. Winds strengthened from the east in the afternoon. It became cloudy with one or two light rain patches last night. The northeast monsoon is expected to affect the coast of Guangdong in the next few days.

Weather forecast for Hong Kong

Mainly cloudy. One or two light rain patches in the morning and at night. Sunny intervals during the day. Temperatures will range between 23 and 26 degrees. Moderate to fresh easterly winds, occasionally strong offshore at first.

Outlook : Sunny periods in the following couple of days. Cloudier midweek next week.


(The above forecast period is valid up to 23:59 HKT today, 10/11/2018; 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 21:00 HKT 09/Nov/2018

GALE WARNING AREAS: TAIWAN STRAIT, BASHI AND BALINTANG.

GENERAL SITUATION AT 090900 UTC:
AN EASTERLY AIRSTREAM IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 091300 UTC:

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

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 11:30 p.m. on 09 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.
    A few light rain patches.
    Moderate to rough seas.

    Nan'ao and Shanwei:
    East force 6 to 7.
    Rough seas.

    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
    Easterly winds of force 5 to 6, up to force 7 at first.

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

    Waglan Island Wind east force 6

    Shantou Wind east-northeast force 2
      Visibility 16 Kilometres

    Huangmaozhou Wind east force 6

    Xisha Wind east-northeast force 3
      Visibility 26 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 10/NOV/2018
    (Next update at 9:00-9:30 HKT 10/NOV/2018)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS, SEV TURB AND SEV GUSTS.
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 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  090/15, OCNL 20
       OFFSHORE:  080/25-30G35-40                      23-26
   B.   2000 FT:  100/25-30                            19
   C.   5000 FT:  130/20                               15
   D.  10000 FT:  100/10                               9
   E.  18000 FT:  250/25                               MS9
   F.  24000 FT:  260/35                               MS19
   G.  30000 FT:  270/55                               MS30
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      2300-3000 FT
   I. WEATHER       : 
      MAINLY CLOUDY WITH ONE OR TWO LIGHT RAIN
      PATCHES IN THE MORNING. SUNNY INTERVALS DURING
      THE DAY.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT SCT 4000 FT
   K. VISIBILITY    : 9 KM. TEMPO 4000 M IN RAIN.
   L. 0 DEG. C LEVEL: 14000 FT      10 DEG. C LEVEL(S) : 10600 FT
   M. TURBULENCE    : MOD TO SEV
   N. SEA STATE     : 2.5-4.0 M     SEA TEMPERATURE    : 25 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH EASTERLY WINDS, OCCASIONALLY
     STRONG OFFSHORE. SUNNY INTERVALS. ONE OR TWO
     LIGHT RAIN PATCHES LATER.=

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

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

Hong Kong Observatory
Maximum Air Temperature                     27.1 C
Minimum Air Temperature                     22.9 C
Grass Minimum Temperature                   21.5 C
Relative Humidity                        60 - 83 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January          2086.0 mm
Against an average of                     2348.2 mm

Other Stations                Min                  Max
King's Park                  22.3 C               28.1 C
Wong Chuk Hang               22.1 C               27.9 C
Ta Kwu Ling                  19.4 C               28.5 C
Lau Fau Shan                 19.3 C               29.9 C
Tai Po                       19.7 C               25.4 C
Sha Tin                      21.3 C               26.7 C
Tuen Mun                     20.9 C               29.3 C
Tseung Kwan O                20.0 C               28.1 C
Sai Kung                     21.7 C               26.5 C
Cheung Chau                  21.2 C               28.7 C
Chek Lap Kok                 21.6 C               29.5 C
Tsing Yi                     22.3 C               27.9 C
Shek Kong                    20.2 C               28.7 C
Tsuen Wan Ho Koon            20.1 C               28.5 C
Tsuen Wan Shing Mun Valley   21.2 C               28.4 C
Hong Kong Park               22.6 C               27.7 C
Shau Kei Wan                 21.6 C               28.5 C
Kowloon City                 21.6 C               28.4 C
Happy Valley                 22.4 C               28.4 C
Wong Tai Sin                 22.1 C               27.9 C
Stanley                      22.6 C               27.9 C
Kwun Tong                    22.1 C               27.8 C
Sham Shui Po                 21.4 C               29.3 C
Kai Tak Runway Park          22.4 C               27.0 C
Yuen Long Park               20.2 C               28.9 C
Tai Mei Tuk               20.3 C               27.8 C

Duration of sunshine (King's Park):              5.1 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 6.
 

Yesterday's (09 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                           0.13
Sai Wan Ho                          0.09
King's Park                         0.15
Tsim Bei Tsui                       0.13
Cape D'Aguilar                      0.14
Chek Lap Kok                        0.15

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 09 Nov
     2003copy right image | Important notices | Privacy policy Last revision date: <10 Nov 2018> 

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