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Bulletin issued at 23:02 HKT 12/Nov/2018

At 11 p.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 23 degrees;
Tseung Kwan O 22 degrees;
Sai Kung 23 degrees;
Cheung Chau 22 degrees;
Chek Lap Kok 25 degrees;
Tsing Yi 25 degrees;
Shek Kong 23 degrees;
Tsuen Wan Ho Koon 22 degrees;
Tsuen Wan Shing Mun Valley 22 degrees;
Hong Kong Park 23 degrees;
Shau Kei Wan 23 degrees;
Kowloon City 23 degrees;
Happy Valley 24 degrees;
Wong Tai Sin 23 degrees;
Stanley 23 degrees;
Kwun Tong 23 degrees;
Sham Shui Po 24 degrees;
Kai Tak Runway Park 24 degrees;
Yuen Long Park 23 degrees;
Tai Mei Tuk 23 degrees.


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


Climatological Information for 12 Nov

Regional Weather in Hong Kong

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Bulletin updated at 23:15 HKT 12/Nov/2018

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

The broad band of clouds covering southern China thinned out gradually today. Locally, there were one or two light rain patches this morning. There were sunny periods during the day and visibility was rather low over some areas. The northeast monsoon is expected to affect the coast of Guangdong tomorrow and winds will strengthen from the east with one or two rain patches over the region in the middle and latter parts of this week.

Weather forecast for Hong Kong (Tuesday, 13 Nov 2018)

Mainly cloudy. Relatively low visibility in some areas at first. Sunny periods during the day. Temperatures will range between 23 and 27 degrees. Moderate northeasterly winds, freshening from the east later.

Outlook : Windy with one or two rain patches in the following couple of days.


(The above forecast period is valid up to 23:59 HKT tomorrow, 13/11/2018; 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 12/Nov/2018

N0 WARNING.

GENERAL SITUATION AT 120900 UTC:
THE NORTHEAST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 121300 UTC:

HONG KONG= NE 4, E 5-6 LATER. DOWN TO 4000 M IN HAZE PATCHES AT FIRST. SEA 2-3 M LATER. TEMP 23-27 C. =
KWANGTUNG= NE 4-5, BEC E 6-7. RAIN PATCHES. SEA UP TO 2 M, BEC 3-4 M. =
TAIWAN STRAIT= NE 6-7. RAIN PATCHES. SEA 3-4 M. =
BASHI= E TO NE 5-6. LGT RAIN PATCHES. SEA 2-3 M. SWELL E TO NE 2 M. =
PRATAS= E TO NE 5-6, OCNL 7. LGT RAIN PATCHES. SEA UP TO 4 M. =
BALINTANG= E TO NE 5-6, OCNL 7. LGT RAIN PATCHES. SEA UP TO 4 M. SWELL E TO NE 2 M. =
SCARBOROUGH= NE 5, OCNL 6. FINE. SEA UP TO 3 M. SWELL E TO NE 2 M. =
PARACEL= E TO NE 4-5. CLD. SEA UP TO 2 M. =
TONKIN= E TO NE 4-5. RAIN PATCHES. SEA UP TO 2 M. =
DANANG= E TO NE 4-5. CLD. 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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    Bulletin issued at 23:30 HKT 12/Nov/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 11:30 p.m. on 12 November 2018

    Warnings:
    Strong winds in all areas.

    Weather Situation:
    The northeast monsoon is affecting the coastal waters of Guangdong.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    Northeast force 4, east force 5 to 6 later.
    Visibility relatively low in some areas at first.
    Moderate seas, becoming moderate to rough seas later.

    Nan'ao and Shanwei:
    Northeast force 4 to 5, becoming east force 6 to 7.
    Moderate seas, becoming rough seas.

    South of Hong Kong and Shangchuan Dao:
    Northeast force 4 to 5, east up to force 6 later.
    Moderate seas, becoming rough seas later.

    Outlook for the next 48 hours
    Easterly winds of force 6 to 7.

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

    Waglan Island Wind north-northeast force 3
      Visibility 10 Kilometres

    Shantou Wind east-northeast force 1
      Visibility 12 Kilometres

    Dongsha Wind east-northeast force 3
      Visibility 10 Kilometres

    Huangmaozhou Wind east force 4

    Xisha Wind east-northeast force 2
      Visibility 27 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 17:30 HKT 12/NOV/2018
    (Next update at 01:30 HKT 13/NOV/2018)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE NORTHEAST MONSOON IS AFFECTING THE COAST OF
     GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  030/5-10
       OFFSHORE:  060/10-15                            27-22
   B.   2000 FT:  360/10                               19
   C.   5000 FT:  120/10                               16
   D.  10000 FT:  250/10                               7
   E.  18000 FT:  270/30                               MS7
   F.  24000 FT:  270/50                               MS17
   G.  30000 FT:  270/65                               MS28
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      1400-2300 FT
   I. WEATHER       : 
      MAINLY CLOUDY. LOCALISED MIST/HAZE.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT  SCT 3500 FT.
   K. VISIBILITY    : 7 KM.  TEMPO 4000 M IN MIST/HAZE
   L. 0 DEG. C LEVEL: 14500 FT      10 DEG. C LEVEL(S) : 9000 FT
   M. TURBULENCE    : NIL
   N. SEA STATE     : 0.5-1.0 M     SEA TEMPERATURE    : 25 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EAST TO NORTHEASTERLY WINDS.  SUNNY
     PERIODS DURING THE DAY.=

    ===================================================================
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)

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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 12/Nov/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     25.7 C
Minimum Air Temperature                     22.5 C
Grass Minimum Temperature                   20.7 C
Relative Humidity                        73 - 86 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January          2086.0 mm
Against an average of                     2349.5 mm

Other Stations                Min                  Max
King's Park                  21.7 C               26.5 C
Wong Chuk Hang               21.8 C               27.2 C
Ta Kwu Ling                  19.7 C               27.7 C
Lau Fau Shan                 20.0 C               30.0 C
Tai Po                       20.7 C               24.5 C
Sha Tin                      20.7 C               26.8 C
Tuen Mun                     20.9 C               29.0 C
Tseung Kwan O                20.7 C               26.1 C
Sai Kung                     21.2 C               24.6 C
Cheung Chau                  21.2 C               27.8 C
Chek Lap Kok                 22.2 C               28.8 C
Tsing Yi                     22.5 C               27.5 C
Shek Kong                    21.5 C               28.5 C
Tsuen Wan Ho Koon            19.6 C               27.8 C
Tsuen Wan Shing Mun Valley   20.2 C               28.2 C
Hong Kong Park               21.9 C               25.3 C
Shau Kei Wan                 21.8 C               24.5 C
Kowloon City                 21.1 C               27.6 C
Happy Valley                 22.2 C               26.9 C
Wong Tai Sin                 22.3 C               27.4 C
Stanley                      22.2 C               25.7 C
Kwun Tong                    21.7 C               25.8 C
Sham Shui Po                 21.7 C               28.3 C
Kai Tak Runway Park          22.4 C               25.2 C
Yuen Long Park               19.3 C               28.8 C
Tai Mei Tuk               21.0 C               27.7 C

Duration of sunshine (King's Park):              6.7 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 7.
 

Yesterday's (11 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 11 Nov
     2003copy right image | Important notices | Privacy policy Last revision date: <12 Nov 2018> 

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