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Bulletin issued at 00:02 HKT 14/Dec/2018

At midnight at the Hong Kong Observatory the air temperature was 16 degrees Celsius and the relative humidity 71 per cent.

The air temperatures at other places were:

King's Park 15 degrees;
Wong Chuk Hang 16 degrees;
Ta Kwu Ling 13 degrees;
Lau Fau Shan 13 degrees;
Tai Po 13 degrees;
Sha Tin 15 degrees;
Tuen Mun 14 degrees;
Tseung Kwan O 15 degrees;
Sai Kung 15 degrees;
Cheung Chau 15 degrees;
Chek Lap Kok 15 degrees;
Tsing Yi 16 degrees;
Shek Kong 14 degrees;
Tsuen Wan Ho Koon 13 degrees;
Tsuen Wan Shing Mun Valley 15 degrees;
Hong Kong Park 16 degrees;
Shau Kei Wan 15 degrees;
Kowloon City 15 degrees;
Happy Valley 16 degrees;
Wong Tai Sin 15 degrees;
Stanley 16 degrees;
Kwun Tong 15 degrees;
Sham Shui Po 15 degrees;
Kai Tak Runway Park 16 degrees;
Yuen Long Park 13 degrees;
Tai Mei Tuk 14 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 00:00 HKT 14/Dec/2018

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

The northeast monsoon continued to affect southern China yesterday. Locally, there were sunny intervals. It was rather cool in the morning. The minimum temperature recorded at the Observatory was 13.5 degrees, the lowest so far this winter. Temperatures were generally two to three degrees lower in the New Territories. The northeast monsoon is expected to moderate in the next couple of days. Temperatures over the coastal areas of Guangdong will rise gradually.

Weather forecast for Hong Kong (Friday, 14 Dec 2018)

Mainly cloudy. Cool in the morning. The minimum temperature will be about 15 degrees in the urban areas, and a couple of degrees lower in the New Territories. Sunny periods during the day with a maximum temperature of around 20 degrees. Moderate to fresh north to northeasterly winds.

Outlook : Mainly fine and temperatures rising gradually in the following couple of days. Slightly cool and dry 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 21:00 HKT 13/Dec/2018

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

GENERAL SITUATION AT 130900 UTC:
AN INTENSE NORTHEAST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 131300 UTC:

HONG KONG= N TO NE 6-7. FINE. SEA 3-4 M. SWELL N TO NE 2-3 M. TEMP 15-20 C. =
KWANGTUNG= N TO NE 7-8. LGT RAIN PATCHES. SEA 4-6 M. SWELL N TO NE 3-5 M. =
TAIWAN STRAIT= N TO NE 7-8. CLD. SEA 4-6 M. SWELL N TO NE 3-5 M. =
BASHI= N TO NE 7-8. LGT RAIN PATCHES. SEA 4-6 M. SWELL N TO NE 3-5 M. =
PRATAS= N TO NE 7-8. LGT RAIN PATCHES. SEA 4-6 M. SWELL N TO NE 3-5 M. =
BALINTANG= N TO NE 7-8. LGT RAIN PATCHES. SEA 4-6 M. SWELL N TO NE 3-5 M. =
SCARBOROUGH= N TO NE 7-8. LGT RAIN PATCHES. SEA 4-6 M. SWELL N TO NE 3-5 M. =
PARACEL= N TO NE 7-8. LGT RAIN PATCHES. SEA 4-6 M. SWELL N TO NE 3-5 M. =
TONKIN= N TO NE 6-7, OCNL 8. RAIN PATCHES. SEA UP TO 6 M. SWELL N TO NE 2-3 M. =
DANANG= N TO NE 6-7, OCNL 8. RAIN PATCHES. SEA UP TO 6 M. SWELL N TO NE 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 23:30 HKT 13/Dec/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 11:30 p.m. on 13 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.
    Rough seas.

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

    Outlook for the next 48 hours
    East to northeasterly winds of force 7 to 8, becoming northerly winds of force 6 to 7 later.

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

    Waglan Island Wind north force 4
      Visibility 19 Kilometres

    Shantou Wind north force 1
      Visibility 29 Kilometres

    Huangmaozhou Wind northeast force 4

    Xisha Wind northeast force 3
      Visibility 16 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 13/DEC/2018
    (Next update at 01:30 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 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  020/10-15
       OFFSHORE:  020/15-20, OCNL 25                   16-12
   B.   2000 FT:  080/15-20, OCNL 25                   10
   C.   5000 FT:  230/15                               13
   D.  10000 FT:  260/20                               9
   E.  18000 FT:  250/25                               MS5
   F.  24000 FT:  250/45                               MS13
   G.  30000 FT:  270/40                               MS26
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      2100-2700 FT, 3500-4800 FT
   I. WEATHER       : 
      MAINLY CLOUDY.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 3500 FT
   K. VISIBILITY    : 10 KM.
   L. 0 DEG. C LEVEL: 15500 FT      10 DEG. C LEVEL(S) : 2000, 6600, 8600,9400 FT
   M. TURBULENCE    : MOD TO SEV OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 2.0-2.5 M     SEA TEMPERATURE    : 22 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH NORTH TO NORTHEASTERLY 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)

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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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