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Bulletin issued at 00:02 HKT 28/Nov/2019

At midnight at the Hong Kong Observatory the air temperature was 22 degrees Celsius and the relative humidity 85 per cent.

The air temperatures at other places were:

King's Park 21 degrees;
Wong Chuk Hang 22 degrees;
Ta Kwu Ling 20 degrees;
Lau Fau Shan 21 degrees;
Tai Po 21 degrees;
Sha Tin 21 degrees;
Tuen Mun 21 degrees;
Tseung Kwan O 21 degrees;
Sai Kung 21 degrees;
Cheung Chau 21 degrees;
Chek Lap Kok 23 degrees;
Tsing Yi 21 degrees;
Shek Kong 20 degrees;
Tsuen Wan Ho Koon 19 degrees;
Tsuen Wan Shing Mun Valley 20 degrees;
Hong Kong Park 22 degrees;
Shau Kei Wan 21 degrees;
Kowloon City 21 degrees;
Happy Valley 22 degrees;
Wong Tai Sin 21 degrees;
Stanley 22 degrees;
Kwun Tong 21 degrees;
Sham Shui Po 21 degrees;
Kai Tak Runway Park 22 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 28 Nov

Regional Weather in Hong Kong

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Bulletin updated at 00:00 HKT 28/Nov/2019

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

A strong northeast monsoon affected the south China coastal areas yesterday. Locally, it was mainly cloudy at first, and became fine during the day. Besides, pressure over southern China began to rise in the afternoon yesterday. A replenishment of the northeast monsoon is expected to reach the coastal areas this morning. The weather will be cool and dry over the region today and tomorrow.

At 11 p.m. last night, Severe Tropical Storm Kammuri was centred about 320 kilometres northeast of Yap. It is forecast to move north-northwest at about 12 kilometres per hour across the western North Pacific.

Weather forecast for Hong Kong (Thursday, 28 Nov 2019)

Mainly cloudy. It will be cooler in the morning. The minimum temperature will be about 18 degrees in the urban areas, and a couple of degrees lower in the New Territories. Dry with sunny periods during the day. The maximum temperature will be around 22 degrees. Moderate to fresh northerly winds, occasionally strong offshore at first.

Outlook : Cool on Friday morning. Mainly fine over the weekend.


(The above forecast period is valid up to 23:59 HKT today, 28/11/2019; 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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Marine Forecast

Weather Information for the Marine Community

Bulletin issued at 21:00 HKT 27/Nov/2019

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

GENERAL SITUATION AT 270900 UTC:
THE NORTHEAST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 271300 UTC:

HONG KONG= N TO NE 5-6, BEC UP TO 7. CLD. SEA 2-3 M, BEC UP TO 4 M. SWELL E TO NE UP TO 2 M. TEMP 18-22 C. =
KWANGTUNG= NE 6-7, BEC UP TO 8. RAIN PATCHES. SEA 3-4 M, BEC UP TO 6 M. SWELL E TO NE 2-3 M. =
TAIWAN STRAIT= NE 7-8. CLD. SEA 4-6 M. SWELL NE 3 M. =
BASHI= NE 7-8. ISOL SHOWERS. SEA 4-6 M. SWELL E TO NE 3 M. =
PRATAS= NE 7-8. RAIN PATCHES. SEA 4-6 M. SWELL E TO NE 3 M. =
BALINTANG= NE 7-8. ISOL SHOWERS. SEA 4-6 M. SWELL E TO NE 3 M. =
SCARBOROUGH= NE 6-7, OCNL 8. FINE. SEA UP TO 6 M. SWELL NE 3 M. =
PARACEL= NE 6-7, OCNL 8. RAIN PATCHES. SEA UP TO 6 M. SWELL NE 3 M. =
TONKIN= N TO NE 5-6, OCNL 7. CLD. SEA UP TO 4 M. =
DANANG= E TO NE 5-6, OCNL 7. ISOL SHOWERS AND TS. SEA UP TO 4 M. SWELL 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.


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    • SOUTH CHINA COASTAL WATERS
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    South China Coastal Waters

    Current Weather | Local Weather Forecast | Regional Temperature Forecast in HK
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    Bulletin issued at 23:30 HKT 27/Nov/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 11:30 p.m. on 27 November 2019

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

    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 5 to 6, occasionally force 7.
    Moderate to rough seas.

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

    Shangchuan Dao:
    Northeast force 5 to 6, occasionally force 7.
    Moderate to rough seas.

    Outlook for the next 48 hours
    North to northeasterly winds of force 6 to 7, occasionally force 8. Becoming east to northeasterly winds of force 5 to 6 later.

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

    Waglan Island Wind east-northeast force 4
      Visibility 23 Kilometres

    Shantou Wind east force 2
      Visibility 22 Kilometres

    Dongsha Wind northeast force 4
      Visibility 10 Kilometres

    Huangmaozhou Wind east-northeast force 5

    Macau Wind southeast force 1
      Visibility 12 Kilometres

    Xisha Wind east-northeast force 3
      Visibility 10 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 27/NOV/2019
    (Next update at 01:30 HKT 28/NOV/2019)
    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:  090/10
                  BECMG 010/15-20
       OFFSHORE:  070/20
                  BECMG 050/25                         24-18
   B.   2000 FT:  020/10-15
                  BECMG 040/25                         16
   C.   5000 FT:  070/15                               14
   D.  10000 FT:  280/10                               8
   E.  18000 FT:  260/25                               MS2
   F.  24000 FT:  280/35                               MS15
   G.  30000 FT:  300/40                               MS30
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      3600 - 4200 FT.
   I. WEATHER       : 
      CLOUDY PERIODS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 3000 FT.
   K. VISIBILITY    : 9 KM.
   L. 0 DEG. C LEVEL: 16500 FT      10 DEG. C LEVEL(S) : 7400 FT
   M. TURBULENCE    : MOD TO SEV OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 2.0-3.0 M     SEA TEMPERATURE    : 24 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH NORTHERLY WINDS, OCCASIONALLY
     STRONG OFFSHORE. 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)

    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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     2003copy right image | Important notices | Privacy policy Last revision date: <27 Nov 2019> 
    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 28/Nov/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     24.8 C
Minimum Air Temperature                     21.1 C
Grass Minimum Temperature                   19.9 C
Relative Humidity                        66 - 86 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January          2382.7 mm
Against an average of                     2368.2 mm

Other Stations                Min                  Max
King's Park                  20.3 C               24.9 C
Wong Chuk Hang               20.8 C               25.1 C
Ta Kwu Ling                  19.2 C               28.1 C
Lau Fau Shan                 19.1 C               26.0 C
Tai Po                       20.5 C               25.0 C
Sha Tin                      20.8 C               25.6 C
Tuen Mun                     20.3 C               26.8 C
Tseung Kwan O                20.2 C               24.9 C
Sai Kung                     20.5 C               23.3 C
Cheung Chau                  19.9 C               27.0 C
Chek Lap Kok                 21.3 C               27.1 C
Tsing Yi                     20.9 C               26.6 C
Shek Kong                    19.8 C               27.1 C
Tsuen Wan Ho Koon            18.3 C               26.1 C
Tsuen Wan Shing Mun Valley   20.2 C               27.4 C
Hong Kong Park               20.8 C               26.1 C
Shau Kei Wan                 20.4 C               23.7 C
Kowloon City                 20.1 C               26.8 C
Happy Valley                 20.7 C               24.9 C
Wong Tai Sin                 20.6 C               25.7 C
Stanley                      20.8 C               23.4 C
Kwun Tong                    20.2 C               24.2 C
Sham Shui Po                 21.0 C               27.5 C
Kai Tak Runway Park          21.2 C               23.7 C
Yuen Long Park               19.9 C               29.0 C
Tai Mei Tuk               19.8 C               27.2 C

Duration of sunshine (King's Park):              9.0 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 5.
 

Yesterday's (27 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 27 Nov
     2003copy right image | Important notices | Privacy policy Last revision date: <28 Nov 2019> 

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