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Bulletin issued at 09:31 HKT 29/Dec/2016

At 9 a.m. at the Hong Kong Observatory the air temperature was 14 degrees Celsius and the relative humidity 61 per cent.
During the past hour the mean UV Index recorded at King's Park was 0.5. The intensity of UV radiation was low.

Please be reminded that:

The Fire Danger Warning is Red and the fire risk is extreme.

The air temperatures at other places were:

King's Park 14 degrees;
Wong Chuk Hang 15 degrees;
Ta Kwu Ling 13 degrees;
Lau Fau Shan 13 degrees;
Tai Po 13 degrees;
Sha Tin 14 degrees;
Tuen Mun 14 degrees;
Tseung Kwan O 14 degrees;
Sai Kung 14 degrees;
Cheung Chau 13 degrees;
Chek Lap Kok 15 degrees;
Tsing Yi 14 degrees;
Shek Kong 13 degrees;
Tsuen Wan Ho Koon 12 degrees;
Tsuen Wan Shing Mun Valley 13 degrees;
Hong Kong Park 15 degrees;
Kowloon City 14 degrees;
Happy Valley 15 degrees;
Wong Tai Sin 15 degrees;
Stanley 15 degrees;
Kwun Tong 15 degrees;
Sham Shui Po 15 degrees;
Kai Tak Runway Park 15 degrees;
Yuen Long Park 13 degrees.

Between midnight and 9 a.m. the minimum temperature was 13.9 degrees Celsius at the Hong Kong Observatory.


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


Climatological Information for 29 Dec

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


Local Weather Forecast
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Bulletin updated at 08:45 HKT 29/Dec/2016

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

The winter monsoon is affecting southern China. Locally, temperatures in the urban areas this morning were generally around 13 degrees, and even fell to about 12 degrees in the New Territories.

Weather forecast for today

Dry with sunny periods. Rather cool in the morning. The maximum temperature will be about 17 degrees during the day. Moderate to fresh northerly winds.

Outlook : Rather cool tomorrow. Temperatures will rise over the New Year's Eve and the New Year holidays.


(The above forecast period is valid up to 23:59 HKT today, 29/12/2016; Regular update at : around 45 minutes past each hour, 16:15 HKT and 23:15 HKT)

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MARINE FORECAST
Traditional Chinese Simplified Chinese

Marine Forecast

Weather Information for the Marine Community

Bulletin issued at 09:00 HKT 29/Dec/2016

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

GENERAL SITUATION AT 282100 UTC:
AN INTENSE NORTHEAST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 290100 UTC:

HONG KONG= N TO NE 6-7. FINE. SEA 3-4 M. SWELL NE 2 M. TEMP 17-14 C. =
KWANGTUNG= N TO NE 7-8. CLD. SEA 4-6 M. SWELL E TO NE 3 M. =
TAIWAN STRAIT= NE 7-8, OCNL 9. CLD. SEA UP TO 8 M. SWELL NE 3-4 M. =
BASHI= NE 8-9. ISOL SHOWERS. SEA 6-8 M. SWELL NE 3-4 M. =
PRATAS= NE 7-8. RAIN PATCHES. SEA 4-6 M. SWELL NE 3-4 M. =
BALINTANG= NE 8-9. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 6-8 M. SWELL NE 3-5 M. =
SCARBOROUGH= NE 7-8, OCNL 9. ISOL SHOWERS AND TS. SEA UP TO 8 M. SWELL NE 3-5 M. =
PARACEL= N TO NE 7-8. ISOL SHOWERS AND TS. SEA 4-6 M. SWELL NE 3-5 M. =
TONKIN= N TO NE 6-7, OCNL 8. CLD. SEA UP TO 6 M. SWELL NE 2 M. =
DANANG= N TO NE 7-8. RAIN PATCHES. SEA 4-6 M. SWELL NE 3-4 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 29/Dec/2016

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 9:30 a.m. on 29 December 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.
    Rough seas.

    Nan'ao:
    North to northeast force 7 to 8, occasionally force 9.
    Very rough seas.

    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
    Northeasterly winds of force 7 to 8.

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

    Waglan Island Wind north force 5
      Visibility 13 Kilometres

    Shantou Wind northeast force 1
      Visibility 23 Kilometres

    Dongsha Wind northeast force 5
      Visibility 10 Kilometres

    Huangmaozhou Wind north force 4

    Macau Wind north force 4
      Visibility 10 Kilometres

    Xisha Wind northeast force 4
      Visibility 4500 Metres 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 09:00 HKT 29/DEC/2016
    (Next update at 17:30 HKT 29/DEC/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:  020/10-15, OCNL 20
       OFFSHORE:  020/20-25                            13-17
   B.   2000 FT:  050/20-25                            10
   C.   5000 FT:  050/10                               11
   D.  10000 FT:  260/10                               5
   E.  18000 FT:  240/45                               MS6
   F.  24000 FT:  250/60                               MS17
   G.  30000 FT:  230/65                               MS28
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      1300 - 1600, 3500 - 5000 FT.
   I. WEATHER       : 
      SUNNY PERIODS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 4000 FT.
   K. VISIBILITY    : 10 KM.
   L. 0 DEG. C LEVEL: 13000 FT
      10 DEG. C LEVEL(S) : 2000, 7000 FT
   M. TURBULENCE    : MOD TO SEV.
   N. SEA STATE     : 2.5-3.5 M     SEA TEMPERATURE    : 20 DEG

IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH NORTH TO NORTHEASTERLY WINDS.
     MAINLY CLOUDY.=

    ===================================================================
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 01:00 HKT on 28 Dec 16

    VHHK SIGMET 4 VALID 271300/271700 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N1930 E11618 - N1642 E11400 - N1900 E11200 - N2100 E11300 - N2100 E11500 - N1930 E11618 TOP FL450 MOV W 08KT WKN= VHHK SIGMET 5 VALID 271700/272100 VHHH- VHHK HONG KONG FIR EMBD TS FCST S OF N1730 TOP FL450 MOV W 08KT 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 29/Dec/2016 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     15.7 C
Minimum Air Temperature                     11.5 C
Grass Minimum Temperature                   12.1 C
Relative Humidity                        55 - 65 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January          3026.8 mm
Against an average of                     2392.1 mm

Other Stations                Min                  Max
King's Park                  10.4 C               15.2 C
Wong Chuk Hang               11.0 C               15.8 C
Ta Kwu Ling                   8.8 C               15.6 C
Lau Fau Shan                  9.0 C               15.6 C
Tai Po                        9.5 C               15.3 C
Sha Tin                       9.6 C               15.4 C
Tuen Mun                     10.2 C               16.0 C
Tseung Kwan O                10.3 C               15.7 C
Sai Kung                     10.4 C               15.3 C
Cheung Chau                  10.0 C               15.7 C
Chek Lap Kok                 10.8 C               17.1 C
Tsing Yi                     10.8 C               16.1 C
Shek Kong                     9.4 C               15.6 C
Tsuen Wan Ho Koon             8.5 C               14.1 C
Tsuen Wan Shing Mun Valley    9.6 C               16.5 C
Hong Kong Park               11.5 C               16.0 C
Kowloon City                  9.9 C               15.2 C
Happy Valley                 11.6 C               16.7 C
Wong Tai Sin                 10.6 C               16.4 C
Stanley                      12.0 C               15.4 C
Kwun Tong                    10.4 C               15.2 C
Sham Shui Po                 10.8 C               16.8 C
Kai Tak Runway Park          11.4 C               16.1 C
Yuen Long Park               10.0 C               16.4 C

Duration of sunshine (King's Park):              0.4 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 4.
Sea surface temperature (Waglan Island):        20.8 C 

Yesterday's (28 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                          0.10
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 28 Dec
     2003copy right image | Important notices | Privacy policy Last revision date: <29 Dec 2016> 

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