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Bulletin issued at 13:02 HKT 01/Jan/2017

At 1 p.m. at the Hong Kong Observatory the air temperature was 20 degrees Celsius and the relative humidity 73 per cent.
During the past hour the mean UV Index recorded at King's Park was 6. The intensity of UV radiation was high.

Please be reminded that:

The Fire Danger Warning is Yellow and the fire risk is high.

The air temperatures at other places were:

King's Park 21 degrees;
Wong Chuk Hang 21 degrees;
Ta Kwu Ling 23 degrees;
Lau Fau Shan 21 degrees;
Tai Po 21 degrees;
Sha Tin 21 degrees;
Tuen Mun 23 degrees;
Tseung Kwan O 22 degrees;
Sai Kung 20 degrees;
Cheung Chau 20 degrees;
Chek Lap Kok 22 degrees;
Tsing Yi 21 degrees;
Shek Kong 23 degrees;
Tsuen Wan Ho Koon 22 degrees;
Tsuen Wan Shing Mun Valley 23 degrees;
Shau Kei Wan 19 degrees;
Kowloon City 23 degrees;
Happy Valley 20 degrees;
Wong Tai Sin 22 degrees;
Stanley 20 degrees;
Kwun Tong 21 degrees;
Sham Shui Po 23 degrees;
Kai Tak Runway Park 20 degrees;
Yuen Long Park 24 degrees;
Tai Mei Tuk 21 degrees.


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


Climatological Information for 1 Jan

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


Local Weather Forecast
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Local Weather Forecast

Automatic Regional Weather Forecast in Hong Kong & Pearl River Delta Region

Current Weather | Regional Temperature Forecast in HK |  9-day Weather Forecast
UV Index Forecast |  Weather Information for South China Coastal Waters

Bulletin updated at 12:45 HKT 01/Jan/2017

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

An easterly airstream is affecting the coast of Guangdong. Meanwhile, a band of clouds is covering the northern part of the South China Sea.

Weather forecast for this afternoon and tonight

Sunny periods in the afternoon. Mainly cloudy tonight. Moderate to fresh easterly winds.

Outlook : Mild with sunny periods in the next few days.


(The above forecast period is valid up to 23:59 HKT today, 01/01/2017; Regular update at : around 45 minutes past each hour, 16:15 HKT and 23:15 HKT)

Information on Tropical Cyclones

Marine Weather Information and Forecast

Weather Information for Aviation

Numerical Prediction Products

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MARINE FORECAST
Traditional Chinese Simplified Chinese

Marine Forecast

Weather Information for the Marine Community

Bulletin issued at 09:00 HKT 01/Jan/2017

N0 WARNING.

GENERAL SITUATION AT 312100 UTC:
THE NORTHEAST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 010100 UTC:

HONG KONG= E 5-6. CLD. SEA 2-3 M. SWELL NE 2 M. TEMP 21-19 C. =
KWANGTUNG= E TO NE 5-6. CLD. SEA 2-3 M. SWELL NE 2 M. =
TAIWAN STRAIT= NE 5-6. FINE. SEA 2-3 M. SWELL NE 2 M. =
BASHI= E TO NE 6-7. RAIN PATCHES. SEA 3-4 M. SWELL NE 2 M. =
PRATAS= E TO NE 5-6, OCNL 7. RAIN PATCHES. SEA 3 M. SWELL NE 2 M. =
BALINTANG= E TO NE 6-7. RAIN PATCHES. SEA 3-4 M. SWELL NE 2 M. =
SCARBOROUGH= NE 6-7. CLD. SEA 3-4 M. SWELL NE 2 M. =
PARACEL= E TO NE 5-6, OCNL 7. ISOL SHOWERS. SEA 3 M. SWELL NE 2 M. =
TONKIN= NE 4-5. FINE. SEA UP TO 2 M. =
DANANG= E TO NE 4-5, OCNL 6. ISOL SHOWERS. SEA 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
  • 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 12:30 HKT 01/Jan/2017

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 12:30 p.m. on 01 January 2017

    Warnings:
    Strong winds in all areas.

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

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East force 5 to 6.
    Moderate to rough seas.

    Nan'ao and Shanwei:
    Northeast force 5 to 6.
    Moderate to rough seas.

    South of Hong Kong and Shangchuan Dao:
    East to northeast force 5 to 6.
    Moderate to rough seas.

    Outlook for the next 48 hours
    East to northeasterly winds of force 5 to 6.

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

    Waglan Island Wind east-northeast force 5
      Visibility 16 Kilometres

    Shantou Wind east force 2
      Visibility 13 Kilometres

    Huangmaozhou Wind east-northeast force 4

    Macau Wind north-northeast force 2
      Visibility 8 Kilometres

    Xisha Wind northeast force 4
      Visibility 11 Kilometres in showers

  • 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 01/JAN/2017
    (Next update at 17:30 HKT 01/JAN/2017)
    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, UP TO 25 AT FIRST            20-23
   B.   2000 FT:  90/20, UP TO 25 AT FIRST             12
   C.   5000 FT:  120/10                               14
   D.  10000 FT:  280/20-25                            9
   E.  18000 FT:  250/20                               MS7
   F.  24000 FT:  250/35                               MS19
   G.  30000 FT:  250/35                               MS31
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      3000 - 3400 FT
   I. WEATHER       : 
      SUNNY INTERVALS DURING THE DAY.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 3000 FT  SCT 8000 FT.
   K. VISIBILITY    : 8 KM.
   L. 0 DEG. C LEVEL: 15000 FT      10 DEG. C LEVEL(S) : 9000 FT
   M. TURBULENCE    : MOD TO SEV
   N. SEA STATE     : 2.0-3.0 M     SEA TEMPERATURE    : 19 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH EASTERLY WINDS. CLOUDY
     PERIODS. LOCALIZED MIST.=

    ===================================================================
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 10:50 HKT on 30 Dec 16

    VHHK SIGMET 1 VALID 300250/300650 VHHH- VHHK HONG KONG FIR SEV ICE FCST WI N1800 E11248 - N1930 E11130 - N2130 E11130 - N2230 E11500 - N2200 E11500 - N1800 E11248 FL240/300 STNR NC=

    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 01/Jan/2017 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     20.7 C
Minimum Air Temperature                     15.6 C
Grass Minimum Temperature                   14.2 C
Relative Humidity                        59 - 84 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January          3026.8 mm
Against an average of                     2398.5 mm

Other Stations                Min                  Max
King's Park                  14.9 C               22.1 C
Wong Chuk Hang               15.7 C               22.5 C
Ta Kwu Ling                   9.3 C               23.2 C
Lau Fau Shan                 13.0 C               21.7 C
Tai Po                       13.2 C               21.7 C
Sha Tin                      13.9 C               21.9 C
Tuen Mun                     14.2 C               23.7 C
Tseung Kwan O                14.2 C               22.6 C
Sai Kung                     14.9 C               20.2 C
Cheung Chau                  14.7 C               20.8 C
Chek Lap Kok                 15.5 C               21.6 C
Tsing Yi                     15.3 C               23.2 C
Shek Kong                    11.9 C               23.5 C
Tsuen Wan Ho Koon            12.5 C               22.2 C
Tsuen Wan Shing Mun Valley   12.9 C               23.6 C
Shau Kei Wan                 14.8 C               20.8 C
Kowloon City                 14.5 C               23.7 C
Happy Valley                 16.1 C               22.9 C
Wong Tai Sin                 14.6 C               23.7 C
Stanley                      15.8 C               20.1 C
Kwun Tong                    15.1 C               22.3 C
Sham Shui Po                 14.9 C               23.6 C
Kai Tak Runway Park          16.1 C               21.4 C
Yuen Long Park               12.0 C               24.3 C
Tai Mei Tuk               14.1 C               21.2 C

Duration of sunshine (King's Park):              8.4 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.
Sea surface temperature (Waglan Island):        20.3 C 

Yesterday's (31 Dec 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                         0.10
Kwun Tong                           0.12
Sai Wan Ho                          0.09
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 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 31 Dec
     2003copy right image | Important notices | Privacy policy Last revision date: <01 Jan 2017> 

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