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Bulletin issued at 09:02 HKT 12/Feb/2017

At 9 a.m. at the Hong Kong Observatory the air temperature was 13 degrees Celsius and the relative humidity 73 per cent.
During the past hour the mean UV Index recorded at King's Park was 0.6. The intensity of UV radiation was low.

Please be reminded that:

The Fire Danger Warning is Yellow and the fire risk is high.
The Cold Weather Warning is now in force. Cold weather might cause adverse health effects. Members of the public should take care to keep warm.

The air temperatures at other places were:

King's Park 13 degrees;
Wong Chuk Hang 14 degrees;
Ta Kwu Ling 10 degrees;
Lau Fau Shan 12 degrees;
Tai Po 14 degrees;
Sha Tin 13 degrees;
Tuen Mun 13 degrees;
Tseung Kwan O 14 degrees;
Sai Kung 13 degrees;
Cheung Chau 14 degrees;
Chek Lap Kok 14 degrees;
Tsing Yi 13 degrees;
Shek Kong 12 degrees;
Tsuen Wan Ho Koon 11 degrees;
Tsuen Wan Shing Mun Valley 13 degrees;
Shau Kei Wan 14 degrees;
Kowloon City 14 degrees;
Happy Valley 14 degrees;
Wong Tai Sin 14 degrees;
Stanley 13 degrees;
Kwun Tong 13 degrees;
Sham Shui Po 14 degrees;
Kai Tak Runway Park 15 degrees;
Yuen Long Park 13 degrees;
Tai Mei Tuk 13 degrees.

Between midnight and 9 a.m. the minimum temperature was 12.5 degrees Celsius at the Hong Kong Observatory.


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


Climatological Information for 12 Feb

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 08:45 HKT 12/Feb/2017

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

The winter monsoon is bringing cold weather to southern China. Locally, temperatures in the urban areas fell to around 12 degrees this morning, and temperatures over many places of the New Territories fell below 10 degrees.

Weather forecast for today

Fine. Dry during the day with a maximum temperature of around 19 degrees. Moderate northeasterly winds, occasionally fresh offshore later.

Outlook : Temperatures rising gradually in the next few days.


(The above forecast period is valid up to 23:59 HKT today, 12/02/2017; 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

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MARINE FORECAST
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Marine Forecast

Weather Information for the Marine Community

Bulletin issued at 09:00 HKT 12/Feb/2017

N0 WARNING.

GENERAL SITUATION AT 112100 UTC:
THE NORTHEAST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 120100 UTC:

HONG KONG= NE 5-6. FINE. SEA 2-3 M. SWELL NE 2 M. TEMP 19-14 C. =
KWANGTUNG= NE 5-6, UP TO 7 IN E. FINE. SEA 2-3 M, UP TO 4 M IN E. SWELL NE 2-3 M. =
TAIWAN STRAIT= NE 6-7. CLD. SEA 3-4 M. SWELL NE 2-3 M. =
BASHI= NE 6-7. RAIN PATCHES. SEA 3-4 M. SWELL NE 2-3 M. =
PRATAS= NE 6-7. RAIN PATCHES. SEA 3-4 M. SWELL NE 2-3 M. =
BALINTANG= NE 6-7. RAIN PATCHES. SEA 3-4 M. SWELL NE 2-3 M. =
SCARBOROUGH= NE 6-7. CLD. SEA 3-4 M. SWELL NE 2-3 M. =
PARACEL= NE 6-7. CLD. SEA 3-4 M. SWELL NE 2-3 M. =
TONKIN= NE 5-6. CLD. SEA 2-3 M. =
DANANG= NE 6-7. RAIN PATCHES. 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 12/Feb/2017

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 9:30 a.m. on 12 February 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:
    Northeast force 5 to 6.
    Moderate to rough seas.

    Nan'ao and Shanwei:
    Northeast force 6 to 7.
    Rough seas.

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

    Outlook for the next 48 hours
    East to northeasterly winds of force 5 to 6, occasionally force 7.

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

    Waglan Island Wind northeast force 3
      Visibility 8 Kilometres

    Shantou Wind east-northeast force 1
      Visibility 8 Kilometres

    Dongsha Wind northeast force 5
      Visibility 10 Kilometres

    Huangmaozhou Wind northeast force 4

    Macau Wind north force 2
      Visibility 6 Kilometres

    Xisha Wind north-northeast force 3
      Visibility 17 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 12/FEB/2017
    (Next update at 17:30 HKT 12/FEB/2017)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE NORTHEAST MONSOON IS AFFECTING THE SOUTH
     CHINA COASTAL WATERS.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  060/5-10
       OFFSHORE:  060/10-15, OCNL 20                   14-19
   B.   2000 FT:  070/10, OCNL 15                      8
   C.   5000 FT:  350/5-10                             6
   D.  10000 FT:  320/25                               4
   E.  18000 FT:  320/55                               MS9
   F.  24000 FT:  260/75                               MS19
   G.  30000 FT:  250/75                               MS31
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      FINE.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 5000 FT.
   K. VISIBILITY    : 8 KM.
   L. 0 DEG. C LEVEL: 11800 FT      10 DEG. C LEVEL(S) : 1100 FT
   M. TURBULENCE    : MOD
   N. SEA STATE     : 1.0-2.0 M     SEA TEMPERATURE    : 17 DEG
IV.  FURTHER OUTLOOK: 
     LIGHT TO MODERATE NORTHEASTERLY WINDS. 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.

    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 10:58 HKT on 06 Feb 17

    VHHK SIGMET 1 VALID 060300/060700 VHHH- VHHK HONG KONG FIR SEV TURB FCST S OF N2030 FL220/390 MOV E 10KT 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 12/Feb/2017 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     17.9 C
Minimum Air Temperature                     11.5 C
Grass Minimum Temperature                   11.3 C
Relative Humidity                        41 - 68 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January            12.7 mm
Against an average of                       44.9 mm

Other Stations                Min                  Max
King's Park                  10.1 C               17.6 C
Wong Chuk Hang               10.6 C               17.0 C
Ta Kwu Ling                   7.5 C               18.6 C
Lau Fau Shan                  8.9 C               17.5 C
Tai Po                        9.2 C               17.1 C
Sha Tin                       9.3 C               17.2 C
Tuen Mun                     10.0 C               18.6 C
Tseung Kwan O                 9.6 C               17.4 C
Sai Kung                     10.1 C               15.3 C
Cheung Chau                   9.9 C               17.2 C
Chek Lap Kok                 10.9 C               17.3 C
Tsing Yi                     11.2 C               18.1 C
Shek Kong                     9.1 C               19.3 C
Tsuen Wan Ho Koon             8.1 C               17.7 C
Tsuen Wan Shing Mun Valley    9.7 C               18.7 C
Shau Kei Wan                 10.3 C               16.8 C
Kowloon City                 10.0 C               18.4 C
Happy Valley                 11.4 C               17.8 C
Wong Tai Sin                  9.9 C               17.9 C
Stanley                      11.4 C               15.7 C
Kwun Tong                    10.2 C               17.1 C
Sham Shui Po                 10.7 C               18.4 C
Kai Tak Runway Park          10.8 C               16.9 C
Yuen Long Park                9.2 C               19.0 C
Tai Mei Tuk                9.1 C               17.4 C

Duration of sunshine (King's Park):              10.0 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 6.
Sea surface temperature (Waglan Island):        17.5 C 

Yesterday's (11 Feb 2017) 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                         0.15
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 1987-2016, 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 11 Feb
     2003copy right image | Important notices | Privacy policy Last revision date: <12 Feb 2017> 

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