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Bulletin issued at 10:02 HKT 27/Nov/2019

At 10 a.m. at the Hong Kong Observatory the air temperature was 22 degrees Celsius and the relative humidity 77 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 23 degrees;
Wong Chuk Hang 23 degrees;
Ta Kwu Ling 22 degrees;
Lau Fau Shan 23 degrees;
Tai Po 22 degrees;
Sha Tin 22 degrees;
Tuen Mun 24 degrees;
Tseung Kwan O 23 degrees;
Sai Kung 22 degrees;
Cheung Chau 24 degrees;
Chek Lap Kok 24 degrees;
Tsing Yi 23 degrees;
Shek Kong 23 degrees;
Tsuen Wan Ho Koon 22 degrees;
Tsuen Wan Shing Mun Valley 22 degrees;
Hong Kong Park 23 degrees;
Shau Kei Wan 22 degrees;
Kowloon City 23 degrees;
Happy Valley 23 degrees;
Wong Tai Sin 23 degrees;
Stanley 22 degrees;
Kwun Tong 22 degrees;
Sham Shui Po 24 degrees;
Kai Tak Runway Park 22 degrees;
Yuen Long Park 25 degrees;
Tai Mei Tuk 23 degrees.


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


Climatological Information for 27 Nov

Regional Weather in Hong Kong

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Hong Kong Climatology


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Bulletin updated at 09:45 HKT 27/Nov/2019

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

The northeast monsoon is affecting the south China coastal areas.

Weather forecast for today

Mainly fine. Moderate easterly winds.

Outlook : Sunny periods in the next couple of days. Cooler in the morning.


(The above forecast period is valid up to 23:59 HKT today, 27/11/2019; 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 09:00 HKT 27/Nov/2019

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

GENERAL SITUATION AT 262100 UTC:
THE NORTHEAST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 270100 UTC:

HONG KONG= E TO NE 5-6, OCNL 7. CLD. SEA UP TO 4 M. SWELL NE 2 M. TEMP 25-18 C. =
KWANGTUNG= E TO NE 6-7, UP TO 8 LATER. RAIN PATCHES. SEA 3-4 M, UP TO 6 M LATER. SWELL NE 2 M. =
TAIWAN STRAIT= NE 6-7, 8 LATER. CLD. SEA 3-4 M, 6 M LATER. SWELL NE 2-3 M. =
BASHI= NE 6-7, 8 LATER. ISOL SHOWERS. SEA 3-4 M, 6 M LATER. SWELL NE 2-3 M. =
PRATAS= NE 6-7, 8 LATER. RAIN PATCHES. SEA 3-4 M, 6 M LATER. SWELL NE 3 M. =
BALINTANG= NE 6-7, 8 LATER. ISOL SHOWERS. SEA 3-4 M, 6 M LATER. SWELL NE 2-3 M. =
SCARBOROUGH= NE 6-7, OCNL 8. FINE. SEA UP TO 6 M. SWELL NE 3 M. =
PARACEL= NE 5-6, 7-8 LATER. RAIN PATCHES. SEA 2-3 M, 3-4 M LATER. SWELL NE 3 M. =
TONKIN= E TO NE 5-6. ISOL SHOWERS. SEA 2-3 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.


  • Map showing the 10 forecast areas
  • Tidal Information

    • SOUTH CHINA COASTAL WATERS
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    South China Coastal Waters

    Current Weather | Local Weather Forecast | Regional Temperature Forecast in HK
    9-day Weather Forecast | UV Index Forecast | Weather Information for Fishermen

    Bulletin issued at 09:30 HKT 27/Nov/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 9:30 a.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:
    East to northeast force 5 to 6, occasionally force 7.
    Moderate to rough seas.

    Nan'ao and Shanwei:
    Northeast force 6 to 7, up to force 8 later.
    Rough seas, becoming rough to very rough later.

    South of Hong Kong:
    East to northeast force 6 to 7, up to force 8 later.
    Rough seas, becoming rough to very rough later.

    Shangchuan Dao:
    East to 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 5
      Visibility 20 Kilometres

    Shantou Wind southeast force 2
      Visibility 19 Kilometres

    Dongsha Wind northeast force 4
      Visibility 9 Kilometres

    Huangmaozhou Wind east force 6

    Macau Wind northeast force 2
      Visibility 14 Kilometres

    Xisha Wind northeast force 3
      Visibility 11 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 09:30 HKT 27/NOV/2019
    (Next update at 12:30 HKT 27/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 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  080/10-15
       OFFSHORE:  070/20, OCNL 25 LATER                22-27
   B.   2000 FT:  060/15-20                            15
   C.   5000 FT:  110/15                               14
   D.  10000 FT:  200/15                               8
   E.  18000 FT:  260/15                               MS2
   F.  24000 FT:  280/35                               MS15
   G.  30000 FT:  290/40                               MS30
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      3600 - 4200 FT.
   I. WEATHER       : 
      MAINLY FINE.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 3000 FT.
   K. VISIBILITY    : 9 KM.
   L. 0 DEG. C LEVEL: 16500 FT      10 DEG. C LEVEL(S) : 7000, 7400, 8200 FT
   M. TURBULENCE    : MOD TO SEV OFFSHORE. MOD NEAR HILLS.
   N. SEA STATE     : 2.0-3.0 M     SEA TEMPERATURE    : 24 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH NORTH TO NORTHEASTERLY 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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    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 27/Nov/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     23.4 C
Minimum Air Temperature                     21.0 C
Grass Minimum Temperature                   21.2 C
Relative Humidity                        68 - 81 Percent
Rainfall                                      Trace 
Total rainfall since 1st January          2382.7 mm
Against an average of                     2367.5 mm

Other Stations                Min                  Max
King's Park                  20.6 C               23.3 C
Wong Chuk Hang               20.8 C               23.3 C
Ta Kwu Ling                  18.9 C               25.6 C
Lau Fau Shan                 19.0 C               27.3 C
Tai Po                       19.9 C               23.3 C
Sha Tin                      20.1 C               23.8 C
Tuen Mun                     20.4 C               25.0 C
Tseung Kwan O                19.7 C               23.0 C
Sai Kung                     19.8 C               22.5 C
Cheung Chau                  20.6 C               24.1 C
Chek Lap Kok                 20.8 C               25.7 C
Tsing Yi                     20.7 C               23.6 C
Shek Kong                    19.2 C               24.5 C
Tsuen Wan Ho Koon            19.4 C               23.4 C
Tsuen Wan Shing Mun Valley   20.0 C               23.3 C
Hong Kong Park               20.7 C               23.3 C
Shau Kei Wan                 19.7 C               22.6 C
Kowloon City                 19.9 C               24.6 C
Happy Valley                 20.8 C               23.2 C
Wong Tai Sin                 20.5 C               23.6 C
Stanley                      20.7 C               22.8 C
Kwun Tong                    19.3 C               22.4 C
Sham Shui Po                 20.3 C               25.8 C
Kai Tak Runway Park          20.5 C               23.1 C
Yuen Long Park               19.7 C               26.4 C
Tai Mei Tuk               19.4 C               25.2 C

Duration of sunshine (King's Park):              0.9 H
The mean UV index recorded at King's Park yesterday was 1,
the UV intensity was Low.
The maximum UV index for yesterday was 3.
 

Yesterday's (26 Nov 2019) 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                               0.11
Yuen Ng Fan                         0.12
Tai Mei Tuk                         0.12
Sha Tau Kok                         0.10
Kwun Tong                           0.13
Sai Wan Ho                          0.09
King's Park                         0.14
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 26 Nov
     2003copy right image | Important notices | Privacy policy Last revision date: <27 Nov 2019> 

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