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Bulletin issued at 01:02 HKT 17/Nov/2019

At 1 a.m. at the Hong Kong Observatory the air temperature was 22 degrees Celsius and the relative humidity 84 per cent.

The air temperatures at other places were:

King's Park 21 degrees;
Wong Chuk Hang 20 degrees;
Ta Kwu Ling 20 degrees;
Lau Fau Shan 19 degrees;
Tai Po 20 degrees;
Sha Tin 20 degrees;
Tseung Kwan O 20 degrees;
Sai Kung 20 degrees;
Cheung Chau 21 degrees;
Chek Lap Kok 22 degrees;
Tsing Yi 21 degrees;
Shek Kong 18 degrees;
Tsuen Wan Ho Koon 18 degrees;
Tsuen Wan Shing Mun Valley 20 degrees;
Hong Kong Park 21 degrees;
Shau Kei Wan 21 degrees;
Kowloon City 21 degrees;
Happy Valley 21 degrees;
Wong Tai Sin 22 degrees;
Stanley 22 degrees;
Kwun Tong 21 degrees;
Sham Shui Po 21 degrees;
Kai Tak Runway Park 22 degrees;
Yuen Long Park 18 degrees;
Tai Mei Tuk 21 degrees.


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


Climatological Information for 17 Nov

Regional Weather in Hong Kong

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Bulletin updated at 00:45 HKT 17/Nov/2019

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

The northeast monsoon continued to bring generally fine weather to southern China yesterday. Locally, it was mainly fine and dry during the day. The pressure over northern China is expected to rise today. A cold front will move across the south China coast on Monday night. The associated intense northeast monsoon will bring cool weather to the region.

At 11 p.m. last night, Tropical Depression Kalmaegi was centred about 590 kilometres east-northeast of Manila. It is forecast to be slow-moving, lingering over the seas east of Luzon.

Weather forecast for Hong Kong

Mainly fine. The minimum temperature will be about 21 degrees in the urban areas, and a couple of degrees lower in the New Territories. Dry during the day with a maximum temperature of around 27 degrees. Moderate easterly winds.

Outlook : Mainly fine on Monday with winds strengthening from the north at night. Appreciably cooler in the following couple of days.


(The above forecast period is valid up to 23:59 HKT today, 17/11/2019; 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 16/Nov/2019

N0 WARNING.

GENERAL SITUATION AT 160900 UTC:
THE NORTHEAST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 161300 UTC:

HONG KONG= E 4. FINE. SWELL NE 2 M. TEMP 22-27 C. =
KWANGTUNG= E TO NE 4-5. FINE. SEA UP TO 2 M. SWELL NE 2 M. =
TAIWAN STRAIT= NE 4-5. FINE. SEA UP TO 2 M. SWELL NE 2 M. =
BASHI= NE 6-7. ISOL SHOWERS AND TS. SEA 3-4 M. SWELL NE 2-3 M. =
PRATAS= E TO NE 5-6, OCNL 7. CLD. SEA UP TO 4 M. SWELL NE 2-3 M. =
BALINTANG= NE 6-7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL NE 2-3 M. =
SCARBOROUGH= NE 5-6, OCNL 7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 4 M. SWELL NE 2-3 M. =
PARACEL= E 4-5. ISOL SHOWERS. SEA UP TO 2 M. SWELL NE 2-3 M. =
TONKIN= E TO SE 4-5. CLD. SEA UP TO 2 M. =
DANANG= E 4-5. CLD. SEA UP TO 2 M. SWELL NE 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

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    Bulletin issued at 23:30 HKT 16/Nov/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 11:30 p.m. on 16 November 2019

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

    At 11 p.m., Tropical Depression Kalmaegi with maximum sustained winds of about 55 kilometres per hour near its centre was located at 16.0 degrees north, 126.3 degrees east. It is forecast to be slow-moving, lingering over the seas east of Luzon.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East force 4.
    Moderate seas.

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

    Shangchuan Dao:
    East force 4 to 5.
    Moderate seas.

    Outlook for the next 48 hours
    Easterly winds of force 4 to 5, becoming north to northeasterly winds of force 6 to 7, up to force 8 in east.

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

    Waglan Island Wind east force 3
      Visibility 27 Kilometres

    Shantou Wind east-northeast force 1
      Visibility 25 Kilometres

    Dongsha Wind northeast force 3
      Visibility 10 Kilometres

    Huangmaozhou Wind east force 4

    Xisha Wind northeast force 2
      Visibility 15 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 17/NOV/2019
    (Next update at 9:00-9:30 HKT 17/NOV/2019)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE NORTHEAST MONSOON IS BRINGING GENERALLY FINE
     WEATHER TO SOUTHERN CHINA.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  090/10
       OFFSHORE:  090/15-20                            19-24
   B.   2000 FT:  100/15-20                            18
   C.   5000 FT:  200/10                               16
   D.  10000 FT:  390/10                               7
   E.  18000 FT:  280/20                               MS2
   F.  24000 FT:  300/35                               MS15
   G.  30000 FT:  300/30                               MS27
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      1900-2800 FT
   I. WEATHER       : 
      MAINLY FINE.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 4000 FT
   K. VISIBILITY    : 9 KM.
   L. 0 DEG. C LEVEL: 17000 FT      10 DEG. C LEVEL(S) : 8400 FT
   M. TURBULENCE    : MOD OFFSHORE AND NEAR HILLS
   N. SEA STATE     : 2.0-2.5 M     SEA TEMPERATURE    : 24 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EASTERLY WINDS. MAINLY FINE.=

    ===================================================================
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 17/Nov/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     25.6 C
Minimum Air Temperature                     21.5 C
Grass Minimum Temperature                   19.1 C
Relative Humidity                        66 - 84 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January          2382.7 mm
Against an average of                     2358.1 mm

Other Stations                Min                  Max
King's Park                  20.4 C               25.5 C
Wong Chuk Hang               19.6 C               25.8 C
Ta Kwu Ling                  17.9 C               27.5 C
Lau Fau Shan                 18.3 C               26.8 C
Tai Po                       19.7 C               24.9 C
Sha Tin                      19.1 C               25.9 C
Tseung Kwan O                19.0 C               25.5 C
Sai Kung                     20.0 C               23.8 C
Cheung Chau                  19.2 C               27.6 C
Chek Lap Kok                 20.9 C               27.7 C
Tsing Yi                     20.1 C               26.7 C
Shek Kong                    17.9 C               27.3 C
Tsuen Wan Ho Koon            17.8 C               25.8 C
Tsuen Wan Shing Mun Valley   18.8 C               27.9 C
Hong Kong Park               20.3 C               26.2 C
Shau Kei Wan                 20.6 C               24.6 C
Kowloon City                 20.2 C               26.9 C
Happy Valley                 19.6 C               26.7 C
Wong Tai Sin                 20.6 C               26.6 C
Stanley                      21.3 C               24.2 C
Kwun Tong                    20.1 C               25.6 C
Sham Shui Po                 20.2 C               28.0 C
Kai Tak Runway Park          21.7 C               24.8 C
Yuen Long Park               17.2 C               28.0 C
Tai Mei Tuk               19.7 C               27.0 C

Duration of sunshine (King's Park):              6.8 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 (16 Nov 2019) 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                               0.11
Yuen Ng Fan                         0.12
Tai Mei Tuk                         0.11
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 16 Nov
     2003copy right image | Important notices | Privacy policy Last revision date: <17 Nov 2019> 

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