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Bulletin issued at 11:02 HKT 24/Nov/2016

At 11 a.m. at the Hong Kong Observatory the air temperature was 17 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 17 degrees;
Wong Chuk Hang 17 degrees;
Ta Kwu Ling 16 degrees;
Lau Fau Shan 16 degrees;
Tai Po 16 degrees;
Sha Tin 17 degrees;
Tuen Mun 16 degrees;
Tseung Kwan O 18 degrees;
Sai Kung 16 degrees;
Cheung Chau 16 degrees;
Chek Lap Kok 16 degrees;
Tsing Yi 18 degrees;
Shek Kong 16 degrees;
Tsuen Wan Ho Koon 15 degrees;
Hong Kong Park 17 degrees;
Shau Kei Wan 17 degrees;
Kowloon City 17 degrees;
Happy Valley 19 degrees;
Wong Tai Sin 19 degrees;
Stanley 17 degrees;
Kwun Tong 17 degrees;
Sham Shui Po 18 degrees;
Kai Tak Runway Park 18 degrees;
Yuen Long Park 16 degrees.


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


Climatological Information for 24 Nov

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


Local Weather Forecast
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Local Weather Forecast

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Bulletin updated at 10:45 HKT 24/Nov/2016

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

The northeast monsoon is bringing cool weather to the coastal areas of Guangdong. Locally, the minimum temperature recorded at the Observatory this morning was 15.0 degrees, the lowest so far since this autumn.

Weather forecast for today

It will be cool. Mainly cloudy with one or two light rain patches. Fresh northerly winds, occasionally strong offshore and on high ground at first.

Outlook : Remaining cool in the next few days. Brighter early next week.


(The above forecast period is valid up to 23:59 HKT today, 24/11/2016; 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 24/Nov/2016

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

GENERAL SITUATION AT 232100 UTC:
THE NORTHEAST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 240100 UTC:

HONG KONG= N TO NE 6-7. LGT RAIN PATCHES. SEA 3-4 M. TEMP 17-14 C. =
KWANGTUNG= N TO NE 7-8. LGT RAIN PATCHES. SEA 4-6 M. SWELL NE 2-3 M. =
TAIWAN STRAIT= NE 7-8. LGT RAIN PATCHES. SEA 4-6 M. SWELL NE 2-3 M. =
BASHI= NE 7-8. RAIN PATCHES. SEA 4-6 M. SWELL NE 2-3 M. =
PRATAS= NE 7-8. RAIN PATCHES. SEA 4-6 M. SWELL NE 2-3 M. =
BALINTANG= NE 7-8. RAIN PATCHES. SEA 4-6 M. SWELL NE 2-3 M. =
SCARBOROUGH= NE 6-7, OCNL 8. RAIN PATCHES. SEA 3-5 M. SWELL NE 2 M. =
PARACEL= NE 6-7, OCNL 8 AT FIRST. ISOL SHOWERS AND TS. SEA 3-4 M, UP TO 5 M AT FIRST. SWELL NE 2-3 M. =
TONKIN= N TO NE 6-7, UP TO 8 AT FIRST. RAIN PATCHES. SEA 3-4 M, UP TO 6 M AT FIRST. SWELL N TO NE 2 M. =
DANANG= NE 6-7. ISOL SHOWERS AND TS. SEA 3-4 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
  • 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 24/Nov/2016

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 9:30 a.m. on 24 November 2016

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

    Weather Situation:
    An intense 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.
    One or two light rain patches.
    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
    North to northeasterly winds of force 6 to 7, up to force 8 at first.

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

    Waglan Island Wind north force 5
      Visibility 38 Kilometres

    Shantou Wind west-northwest force 1
      Visibility 30 Kilometres

    Dongsha Wind east-northeast force 5
      Visibility 10 Kilometres

    Huangmaozhou Wind north-northeast force 5

    Macau Wind north force 4
      Visibility 17 Kilometres

    Xisha Wind east-northeast force 1
      Visibility 20 Kilometres

  • Explanation of Seas or Sea Waves
  • Explanation of Swells
  • Descriptive Terms of Wind Speeds
  • Visibility Readings in Hong Kong Waters
  • Map showing forecast areas
  • Tidal Information

    • WEATHER FORECAST FOR LOCAL AVIATION
    Traditional Chinese Simplified Chinese

    Weather Forecast for Local Aviation

    Bulletin issued at 09:30 HKT 24/NOV/2016
    (Next update at 17:30 HKT 24/NOV/2016)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AN INTENSE 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:  010/10-15, OCNL 20
       OFFSHORE:  010/20-25, OCNL 30                   13-17
   B.   2000 FT:  040/20-25, OCNL 30                   12
   C.   5000 FT:  110/15                               15
   D.  10000 FT:  250/10                               7
   E.  18000 FT:  260/30                               MS5
   F.  24000 FT:  270/35                               MS16
   G.  30000 FT:  260/45                               MS30
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      2600 - 4900 FT
   I. WEATHER       : 
      MAINLY CLOUDY WITH A FEW LIGHT RAIN PATCHES.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT SCT 2500 FT
   K. VISIBILITY    : 10 KM. TEMPO 4000 M IN RAIN.
   L. 0 DEG. C LEVEL: 16000 FT      10 DEG. C LEVEL(S) : 8400 FT
   M. TURBULENCE    : MOD TO SEV
   N. SEA STATE     : 3.0-4.0 M     SEA TEMPERATURE    : 24 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH, OCCASIONALLY STRONG, NORTH TO
     NORTH-EASTERLY WINDS. MAINLY CLOUDY WITH A FEW
     LIGHT RAIN PATCHES.=

    ===================================================================
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.

    sigmet
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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.

    The latest significant weather information
    issued by the Hong Kong Observatory at 11:19 HKT on 24 Nov 16

    VHHK SIGMET 1 VALID 240320/240720 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N1718 E11324 - N1924 E11136 - N1924 E11400 - N1718 E11400 - N1718 E11324 TOP FL410 STNR NC= VHHK SIGMET 8 VALID 232320/240320 VHHH- VHHK HONG KONG FIR EMBD TS FCST N OF N1748 AND S OF N1924 AND W OF E11430 TOP FL400 STNR WKN=

    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 24/Nov/2016 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     21.6 C
Minimum Air Temperature                     16.7 C
Grass Minimum Temperature                   19.4 C
Relative Humidity                       80 - 100 Percent
Rainfall                                    25.9 mm 
Total rainfall since 1st January          2961.2 mm
Against an average of                     2365.1 mm

Other Stations                Min                  Max
King's Park                  15.8 C               21.2 C
Wong Chuk Hang               16.7 C               22.0 C
Ta Kwu Ling                  13.8 C               21.5 C
Lau Fau Shan                 14.4 C               21.6 C
Tai Po                       14.6 C               21.3 C
Sha Tin                      15.0 C               21.4 C
Tuen Mun                     15.5 C               21.8 C
Tseung Kwan O                15.3 C               21.1 C
Sai Kung                     15.3 C               21.8 C
Cheung Chau                  15.0 C               21.1 C
Chek Lap Kok                 15.7 C               23.2 C
Tsing Yi                     16.4 C               22.2 C
Shek Kong                    14.4 C               22.1 C
Tsuen Wan Ho Koon            13.6 C               21.0 C
Tsuen Wan Shing Mun Valley   15.9 C               21.7 C
Hong Kong Park               17.0 C               21.7 C
Shau Kei Wan                 16.3 C               21.2 C
Kowloon City                 15.3 C               21.6 C
Happy Valley                 17.5 C               22.4 C
Wong Tai Sin                 16.1 C               21.7 C
Stanley                      17.3 C               21.8 C
Kwun Tong                    16.0 C               21.6 C
Sham Shui Po                 16.2 C               21.9 C
Kai Tak Runway Park          17.3 C               22.4 C
Yuen Long Park               14.8 C               21.7 C

Duration of sunshine (King's Park):              0.0 H
The mean UV index recorded at King's Park yesterday was 0.6,
the UV intensity was Low.
The maximum UV index for yesterday was 2.
Sea surface temperature (Waglan Island):        25.2 C 

Yesterday's (23 Nov 2016) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.08 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                           0.08
Tap Mun                             0.09
Kat O                               0.10
Yuen Ng Fan                         0.12
Tai Mei Tuk                         0.12
Sha Tau Kok                         0.11
Kwun Tong                           0.12
Sai Wan Ho                          0.10
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 during
the period 1987-2015, the background ambient gamma radiation
levels may vary between 0.06 and 0.30 microsievert per hour.

    2. The extent of health effects to a person as a result of
exposure to radiation is expressed by a physical quantity
called equivalent dose, in unit of sievert.  Protective
action may be required if there is an increase in the
ambient gamma dose rate above background such that the total
additional dose is expected to exceed 5000 microsieverts in
a relatively short period of time. For example, a dose of
5000 microsieverts may be reached when the ambient gamma
dose rate is 1000 microsieverts per hour (several thousand
times above background) and lasts for 5 hours.

    3. The readings of ambient gamma radiation level from
instrument are expressed in unit of gray, which is
numerically equal to the gamma dose expressed in sievert.
    Climatological Information for 23 Nov
     2003copy right image | Important notices | Privacy policy Last revision date: <24 Nov 2016> 

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