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Bulletin issued at 01:02 HKT 03/Dec/2018

At 1 a.m. at the Hong Kong Observatory the air temperature was 23 degrees Celsius and the relative humidity 89 per cent.

The air temperatures at other places were:

King's Park 22 degrees;
Wong Chuk Hang 23 degrees;
Ta Kwu Ling 21 degrees;
Lau Fau Shan 20 degrees;
Tai Po 21 degrees;
Sha Tin 22 degrees;
Tuen Mun 22 degrees;
Tseung Kwan O 21 degrees;
Sai Kung 22 degrees;
Cheung Chau 22 degrees;
Chek Lap Kok 23 degrees;
Tsing Yi 22 degrees;
Shek Kong 20 degrees;
Tsuen Wan Ho Koon 21 degrees;
Tsuen Wan Shing Mun Valley 21 degrees;
Hong Kong Park 22 degrees;
Shau Kei Wan 22 degrees;
Kowloon City 22 degrees;
Happy Valley 22 degrees;
Wong Tai Sin 22 degrees;
Stanley 22 degrees;
Kwun Tong 22 degrees;
Sham Shui Po 22 degrees;
Kai Tak Runway Park 23 degrees;
Yuen Long Park 20 degrees;
Tai Mei Tuk 21 degrees.


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


Climatological Information for 3 Dec

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Bulletin updated at 00:45 HKT 03/Dec/2018

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

The anticyclone aloft brought generally fine weather to the northern part of the South China Sea yesterday. Locally, the weather was mainly fine. It was dry during the day. The relative humidity over many places once fell to around 60 per cent. A relatively warm and humid maritime airstream is expected to affect the coast of Guangdong in the next couple of days. Under the influence of an intense northeast monsoon, it will become cool appreciably over southern China in the latter part of this week.

Weather forecast for Hong Kong

Mainly cloudy. Light rain and mist in the morning and at night. Sunny periods during the day. Temperatures will range between 22 and 25 degrees. Moderate easterly winds.

Outlook : Sunny periods in the following couple of days and it will be warm during the day. Temperatures dropping significantly in the latter part of this week.


(The above forecast period is valid up to 23:59 HKT today, 03/12/2018; 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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Weather Information for the Marine Community

Bulletin issued at 21:00 HKT 02/Dec/2018

N0 WARNING.

GENERAL SITUATION AT 020900 UTC:
AN EASTERLY AIRSTREAM IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 021300 UTC:

HONG KONG= E 4-5. DOWN TO 4000 M IN MIST AND LGT RAIN PATCHES. SEA UP TO 2 M. TEMP 22-25 C. =
KWANGTUNG= E 4-5. DOWN TO 4000 M IN MIST OR LGT RAIN PATCHES. SEA UP TO 2 M. SWELL E TO NE UP TO 2 M. =
TAIWAN STRAIT= NE 4. DOWN TO 4000 M IN MIST OR LGT RAIN PATCHES. SWELL NE UP TO 2 M. =
BASHI= E TO NE 5-6. FINE. SEA 2-3 M. SWELL E TO NE 2-3 M. =
PRATAS= E 5-6, OCNL 7 AT FIRST. FINE. SEA 2-3 M, UP TO 4 M AT FIRST. SWELL NE 2 M. =
BALINTANG= E 5-6, OCNL 7 AT FIRST. FINE. SEA 2-3 M, UP TO 4 M AT FIRST. SWELL E TO NE 2-3 M. =
SCARBOROUGH= E 4-5. FINE. SEA UP TO 2 M. SWELL NE 2 M. =
PARACEL= E 4-5. LGT RAIN PATCHES. SEA UP TO 2 M. SWELL NE 2 M. =
TONKIN= SE 4-5. DOWN TO 4000 M IN MIST OR LGT RAIN PATCHES. SEA UP TO 2 M. =
DANANG= E TO SE 4-5. RAIN PATCHES. 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

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    Bulletin issued at 23:30 HKT 02/Dec/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 11:30 p.m. on 02 December 2018

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

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East force 4 to 5.
    Light rain and mist.
    Moderate seas.

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

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

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

    Waglan Island Wind east-northeast force 3
      Visibility 13 Kilometres

    Shantou Wind east-southeast force 1
      Visibility 16 Kilometres

    Dongsha Wind northeast force 1
      Visibility 10 Kilometres

    Huangmaozhou Wind east force 4

    Macau Wind southeast force 4
      Visibility 7 Kilometres

    Xisha Wind east-northeast force 2
      Visibility 17 Kilometres

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    • WEATHER FORECAST FOR LOCAL AVIATION
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    Weather Forecast for Local Aviation

    Bulletin issued at 01:30 HKT 03/DEC/2018
    (Next update at 9:00-9:30 HKT 03/DEC/2018)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AN EASTERLY AIRSTREAM 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:  090/10
       OFFSHORE:  090/15                               21-28
   B.   2000 FT:  160/15-20                            19
   C.   5000 FT:  190/10                               17
   D.  10000 FT:  230/20                               9
   E.  18000 FT:  240/25                               MS3
   F.  24000 FT:  260/35                               MS15
   G.  30000 FT:  280/50                               MS29
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY CLOUDY WITH A FEW LIGHT RAIN AND MIST
      PATCHES. SUNNY PERIODS DURING THE DAY.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT  SCT 3000 FT.
   K. VISIBILITY    : 9 KM.  TEMPO 4000 M IN RAIN/MIST.
   L. 0 DEG. C LEVEL: 16000 FT      10 DEG. C LEVEL(S) : 9600 FT
   M. TURBULENCE    : MOD OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 23 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EASTERLY WINDS. SUNNY PERIODS.=

    ===================================================================
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 03/Dec/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     24.3 C
Minimum Air Temperature                     21.2 C
Grass Minimum Temperature                   18.7 C
Relative Humidity                        75 - 88 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January          2151.0 mm
Against an average of                     2372.0 mm

Other Stations                Min                  Max
King's Park                  20.2 C               25.1 C
Wong Chuk Hang               20.6 C               26.4 C
Ta Kwu Ling                  19.9 C               26.6 C
Lau Fau Shan                 18.7 C               27.4 C
Tai Po                       20.0 C               24.1 C
Sha Tin                      19.8 C               25.7 C
Tuen Mun                     19.9 C               26.7 C
Tseung Kwan O                19.5 C               24.7 C
Sai Kung                     19.9 C               23.4 C
Cheung Chau                  20.2 C               26.0 C
Chek Lap Kok                 21.6 C               27.5 C
Tsing Yi                     20.4 C               26.8 C
Shek Kong                    17.9 C               27.0 C
Tsuen Wan Ho Koon            18.2 C               26.4 C
Tsuen Wan Shing Mun Valley   19.3 C               27.3 C
Hong Kong Park               20.6 C               25.2 C
Shau Kei Wan                 20.6 C               24.6 C
Kowloon City                 20.1 C               26.4 C
Happy Valley                 20.4 C               26.7 C
Wong Tai Sin                 20.8 C               26.1 C
Stanley                      20.9 C               24.7 C
Kwun Tong                    20.2 C               24.7 C
Sham Shui Po                 20.2 C               26.4 C
Kai Tak Runway Park          21.3 C               24.4 C
Yuen Long Park               17.6 C               28.6 C
Tai Mei Tuk               19.7 C               25.8 C

Duration of sunshine (King's Park):              9.3 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.
 

Yesterday's (02 Dec 2018) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.09 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                               0.10
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                         0.14
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 02 Dec
     2003copy right image | Important notices | Privacy policy Last revision date: <03 Dec 2018> 

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