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Bulletin issued at 13:02 HKT 14/Dec/2018

At 1 p.m. at the Hong Kong Observatory the air temperature was 17 degrees Celsius and the relative humidity 70 per cent.
During the past hour the mean UV Index recorded at King's Park was 2. The intensity of UV radiation was low.

The air temperatures at other places were:

King's Park 17 degrees;
Wong Chuk Hang 18 degrees;
Ta Kwu Ling 15 degrees;
Lau Fau Shan 15 degrees;
Tai Po 14 degrees;
Sha Tin 15 degrees;
Tuen Mun 15 degrees;
Tseung Kwan O 16 degrees;
Sai Kung 16 degrees;
Cheung Chau 18 degrees;
Chek Lap Kok 16 degrees;
Tsing Yi 17 degrees;
Shek Kong 15 degrees;
Tsuen Wan Ho Koon 15 degrees;
Tsuen Wan Shing Mun Valley 16 degrees;
Hong Kong Park 17 degrees;
Shau Kei Wan 17 degrees;
Kowloon City 16 degrees;
Happy Valley 18 degrees;
Wong Tai Sin 16 degrees;
Stanley 17 degrees;
Kwun Tong 17 degrees;
Sham Shui Po 16 degrees;
Kai Tak Runway Park 18 degrees;
Yuen Long Park 15 degrees;
Tai Mei Tuk 16 degrees.


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


Climatological Information for 14 Dec

Regional Weather in Hong Kong

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Hong Kong Climatology


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Bulletin updated at 12:45 HKT 14/Dec/2018

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

The northeast monsoon is bringing cool weather to the south China coast.

Weather forecast for this afternoon and tonight

Mainly cloudy. Sunny intervals in the afternoon. Moderate north to northeasterly winds, occasionally fresh offshore.

Outlook : Becoming fine and temperatures rising during the weekend. Dry and slightly cool in the morning early next week.


(The above forecast period is valid up to 23:59 HKT today, 14/12/2018; 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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Marine Forecast

Weather Information for the Marine Community

Bulletin issued at 09:00 HKT 14/Dec/2018

GALE WARNING AREAS: KWANGTUNG, TAIWAN STRAIT, BASHI, PRATAS, BALINTANG, SCARBOROUGH AND PARACEL.

GENERAL SITUATION AT 132100 UTC:
THE NORTHEAST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 140100 UTC:

HONG KONG= N TO NE 6-7, E 6-7 LATER. CLD. SEA 3-4 M. SWELL N TO NE 2-3 M. TEMP 20-17 C. =
KWANGTUNG= E TO NE 7-8. LGT RAIN PATCHES. SEA 4-6 M. SWELL N TO NE 3-5 M. =
TAIWAN STRAIT= NE 7-8. CLD. SEA 4-6 M. SWELL N TO NE 3-5 M. =
BASHI= E TO NE 7-8. LGT RAIN PATCHES. SEA 4-6 M. SWELL N TO NE 3-5 M. =
PRATAS= E TO NE 7-8. LGT RAIN PATCHES. SEA 4-6 M. SWELL N TO NE 3-5 M. =
BALINTANG= E TO NE 7-8. LGT RAIN PATCHES. SEA 4-6 M. SWELL N TO NE 3-5 M. =
SCARBOROUGH= NE 7-8. LGT RAIN PATCHES. SEA 4-6 M. SWELL N TO NE 3-5 M. =
PARACEL= E TO NE 6-7, OCNL 8. LGT RAIN PATCHES. SEA UP TO 6 M. SWELL N TO NE 3-5 M. =
TONKIN= NE 6-7. LGT RAIN PATCHES. SEA 3-4 M. SWELL N TO NE 2-3 M. =
DANANG= NE 6-7. RAIN PATCHES. SEA 3-4 M. SWELL N TO NE 2-3 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

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    Bulletin issued at 12:30 HKT 14/Dec/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 12:30 p.m. on 14 December 2018

    Warnings:
    Gale force winds in Nan'ao, Shanwei, south of Hong Kong and Shangchuan Dao. Strong winds in Hong Kong adjacent waters.

    Weather Situation:
    The northeast monsoon is affecting the south China coastal waters.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    North to northeast force 6 to 7, becoming east force 6 to 7 later.
    Rough seas.

    Nan'ao, Shanwei, South of Hong Kong and Shangchuan Dao:
    East to northeast force 6 to 7, occasionally force 8.
    Rough to very rough seas.

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

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

    Waglan Island Wind north force 5
      Visibility 27 Kilometres

    Shantou Wind northwest force 1
      Visibility 30 Kilometres

    Huangmaozhou Wind northeast force 4

    Macau Wind north force 3
      Visibility 11 Kilometres

    Xisha Wind east-northeast force 3
      Visibility 14 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 12:30 HKT 14/DEC/2018
    (Next update at 17:30 HKT 14/DEC/2018)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE NORTHEAST MONSOON IS AFFECTING THE SOUTH
     CHINA COASTAL AREAS.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1300 TO 2300 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  020/10-15
       OFFSHORE:  020/15-20, OCNL 25                   20-14
   B.   2000 FT:  090/15-20                            11
   C.   5000 FT:  040/10                               12
   D.  10000 FT:  260/10                               9
   E.  18000 FT:  270/25                               MS4
   F.  24000 FT:  260/35                               MS14
   G.  30000 FT:  280/35                               MS26
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      3300-3900 FT
   I. WEATHER       : 
      MAINLY CLOUDY. SUNNY INTERVALS DURING THE DAY.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 3000 FT.
   K. VISIBILITY    : 10 KM.
   L. 0 DEG. C LEVEL: 16500 FT      10 DEG. C LEVEL(S) : 6600 FT
   M. TURBULENCE    : MOD TO SEV OFFSHORE. MOD NEAR HILLS.
   N. SEA STATE     : 2.0-2.5 M     SEA TEMPERATURE    : 21 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE NORTHEASTERLY 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)

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    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 14/Dec/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     18.1 C
Minimum Air Temperature                     13.5 C
Grass Minimum Temperature                   13.6 C
Relative Humidity                        59 - 75 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January          2152.3 mm
Against an average of                     2381.4 mm

Other Stations                Min                  Max
King's Park                  12.7 C               17.6 C
Wong Chuk Hang               13.7 C               18.7 C
Ta Kwu Ling                  10.5 C               16.6 C
Lau Fau Shan                 10.7 C               16.0 C
Tai Po                       10.6 C               16.3 C
Sha Tin                      11.7 C               17.3 C
Tuen Mun                     11.5 C               16.4 C
Tseung Kwan O                12.7 C               18.4 C
Sai Kung                     12.4 C               16.8 C
Cheung Chau                  12.3 C               18.8 C
Chek Lap Kok                 11.8 C               16.6 C
Tsing Yi                     13.4 C               17.9 C
Shek Kong                    10.8 C               17.0 C
Tsuen Wan Ho Koon            10.2 C               16.1 C
Tsuen Wan Shing Mun Valley   12.1 C               18.2 C
Hong Kong Park               13.8 C               18.3 C
Shau Kei Wan                 13.1 C               18.9 C
Kowloon City                 12.1 C               17.7 C
Happy Valley                 14.0 C               18.8 C
Wong Tai Sin                 12.3 C               18.6 C
Stanley                      14.3 C               18.8 C
Kwun Tong                    13.0 C               18.7 C
Sham Shui Po                 12.4 C               19.5 C
Kai Tak Runway Park          13.2 C               18.5 C
Yuen Long Park               10.7 C               17.5 C
Tai Mei Tuk               12.0 C               18.5 C

Duration of sunshine (King's Park):              2.6 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 5.
 

Yesterday's (13 Dec 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                          0.10
King's Park                         0.15
Tsim Bei Tsui                       0.13
Cape D'Aguilar                      0.13
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 13 Dec
     2003copy right image | Important notices | Privacy policy Last revision date: <14 Dec 2018> 

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