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Bulletin issued at 01:02 HKT 15/Feb/2018

At 1 a.m. at the Hong Kong Observatory the air temperature was 17 degrees Celsius and the relative humidity 67 per cent.

The air temperatures at other places were:

King's Park 17 degrees;
Wong Chuk Hang 16 degrees;
Ta Kwu Ling 15 degrees;
Lau Fau Shan 15 degrees;
Tai Po 15 degrees;
Sha Tin 14 degrees;
Tuen Mun 16 degrees;
Tseung Kwan O 15 degrees;
Sai Kung 15 degrees;
Cheung Chau 15 degrees;
Chek Lap Kok 19 degrees;
Tsing Yi 15 degrees;
Shek Kong 14 degrees;
Tsuen Wan Ho Koon 15 degrees;
Tsuen Wan Shing Mun Valley 15 degrees;
Hong Kong Park 16 degrees;
Shau Kei Wan 17 degrees;
Kowloon City 16 degrees;
Happy Valley 15 degrees;
Wong Tai Sin 16 degrees;
Stanley 17 degrees;
Kwun Tong 17 degrees;
Sham Shui Po 17 degrees;
Kai Tak Runway Park 17 degrees;
Yuen Long Park 15 degrees;
Tai Mei Tuk 15 degrees.


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


Climatological Information for 15 Feb

Regional Weather in Hong Kong

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Hong Kong Climatology


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Bulletin updated at 00:45 HKT 15/Feb/2018

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

An easterly airstream affected the coastal areas of Guangdong yesterday. Locally, it was mainly cloudy and dry with bright periods during the day. Under the influence of a maritime airstream, it will be mild, humid and foggy over the coast of Guangdong today and tomorrow.

Besides, Tropical Cyclone Sanba weakened from a tropical storm into a tropical depression yesterday. At 11 p.m. last night, Sanba was centred about 470 kilometres east-southeast of Nansha Dao. It is forecast to move west-northwest at about 12 kilometres per hour towards the southern part of the South China Sea.

Weather forecast for Hong Kong

Mainly cloudy. Sunny periods during the day. Coastal mist at night. Temperatures will range between 16 and 21 degrees. Light to moderate easterly winds.

Outlook : Mild and foggy with sunny periods on Lunar New Year's Day. Becoming cloudy and windier over the weekend.


(The above forecast period is valid up to 23:59 HKT today, 15/02/2018; 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 21:00 HKT 14/Feb/2018

N0 WARNING.

GENERAL SITUATION AT 140900 UTC:
AN EASTERLY AIRSTREAM IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 141300 UTC:

HONG KONG= E 4-5. CLD. DOWN TO 2000 M IN MIST PATCHES LATER. SEA UP TO 2 M. TEMP 16-21 C. =
KWANGTUNG= E 4-5. DOWN TO 2000 M IN MIST PATCHES. SEA UP TO 2 M. SWELL E TO NE 2 M. =
TAIWAN STRAIT= E TO NE 4-5. CLD. SEA UP TO 2 M. SWELL NE 2 M. =
BASHI= E 5-6. LGT RAIN PATCHES. SEA 2-3 M. SWELL E TO NE 2 M. =
PRATAS= E 4-5. FINE. SEA UP TO 2 M. SWELL E TO NE 2 M. =
BALINTANG= E 5-6. LGT RAIN PATCHES. SEA 2-3 M. SWELL E TO NE 2 M. =
SCARBOROUGH= NE 4-5. RAIN PATCHES. SEA UP TO 2 M. SWELL NE 2 M. =
PARACEL= E TO SE 4-5. FINE. SEA UP TO 2 M. SWELL E TO NE 2 M. =
TONKIN= SE 4-5. DOWN TO 2000 M IN MIST PATCHES. SEA UP TO 2 M. =
DANANG= SE 4-5. DOWN TO 2000 M IN MIST PATCHES. SEA UP TO 2 M. SWELL E TO 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
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    • 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 23:30 HKT 14/Feb/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 11:30 p.m. on 14 February 2018

    Weather Situation:
    An easterly airstream is affecting the south China coastal waters.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East force 4 to 5.
    Mist patches later.
    Moderate seas.

    Nan'ao, Shanwei, South of Hong Kong and Shangchuan Dao:
    East force 4 to 5.
    Moderate seas.

    Outlook for the next 48 hours
    Easterly winds of force 4 to 5, up to force 7 in east later. Fog patches.

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

    Waglan Island Wind north force 3
      Visibility 12 Kilometres

    Shantou Wind east-northeast force 1
      Visibility 19 Kilometres

    Dongsha Wind southeast force 2
      Visibility 10 Kilometres

    Huangmaozhou Wind east force 4

    Macau Wind south-southeast force 3
      Visibility 11 Kilometres

    Xisha Wind calm
      Visibility 16 Kilometres

  • Explanation of Seas or Sea Waves
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  • Visibility Readings in Hong Kong Waters
  • Map showing forecast areas
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    • WEATHER FORECAST FOR LOCAL AVIATION
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    Weather Forecast for Local Aviation

    Bulletin issued at 01:30 HKT 15/FEB/2018
    (Next update at 9:00-9:30 HKT 15/FEB/2018)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AN EASTERLY AIRSTREAM IS AFFECTING THE COASTAL
     AREAS OF GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  080/5-10
       OFFSHORE:  080/15                               15-22
   B.   2000 FT:  180/15                               14
   C.   5000 FT:  220/15                               12
   D.  10000 FT:  270/25                               13
   E.  18000 FT:  280/35                               MS6
   F.  24000 FT:  270/35                               MS17
   G.  30000 FT:  250/45                               MS31
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      1500-2300
   I. WEATHER       : 
      MAINLY CLOUDY. SUNNY PERIODS DURING THE DAY.
      COASTAL MIST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2500 FT  SCT 4000 FT.
   K. VISIBILITY    : 9 KM.  TEMPO 3000 M IN MIST.
   L. 0 DEG. C LEVEL: 16500 FT      10 DEG. C LEVEL(S) : 5400, 6400, 12800 FT
   M. TURBULENCE    : MOD OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 16 DEG
IV.  FURTHER OUTLOOK: 
     LIGHT TO MODERATE EASTERLY WINDS.  SUNNY PERIODS.=

    ===================================================================
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 10:30 HKT on 10 Feb 18

    VHHK SIGMET 1 VALID 100230/100630 VHHH- VHHK HONG KONG FIR SEV TURB OBS WI N2000 E11636 - N1742 E11448 - N2000 E11448 - N2000 E11636 FL300/400 MOV E 05KT 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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     2003copy right image | Important notices | Privacy policy Last revision date: <14 Feb 2018> 
    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 15/Feb/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     18.6 C
Minimum Air Temperature                     14.6 C
Grass Minimum Temperature                   12.1 C
Relative Humidity                        47 - 67 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January            62.2 mm
Against an average of                       50.8 mm

Other Stations                Min                  Max
King's Park                  13.7 C               19.0 C
Wong Chuk Hang               13.4 C               19.7 C
Ta Kwu Ling                   8.4 C               21.3 C
Lau Fau Shan                 11.3 C               19.9 C
Tai Po                       11.2 C               18.4 C
Sha Tin                      12.0 C               19.2 C
Tuen Mun                     12.3 C               20.4 C
Tseung Kwan O                11.6 C               18.3 C
Sai Kung                     12.1 C               18.6 C
Cheung Chau                  13.2 C               19.7 C
Chek Lap Kok                 15.4 C               22.2 C
Tsing Yi                     13.2 C               20.4 C
Shek Kong                     9.7 C               21.7 C
Tsuen Wan Ho Koon            11.4 C               19.7 C
Tsuen Wan Shing Mun Valley   12.0 C               20.8 C
Hong Kong Park               13.4 C               18.5 C
Shau Kei Wan                 13.6 C               18.3 C
Kowloon City                 13.5 C               20.7 C
Happy Valley                 13.4 C               19.5 C
Wong Tai Sin                 13.3 C               19.9 C
Stanley                      14.1 C               18.5 C
Kwun Tong                    13.6 C               19.6 C
Sham Shui Po                 13.6 C               19.6 C
Kai Tak Runway Park          14.8 C               18.3 C
Yuen Long Park               10.0 C               21.8 C
Tai Mei Tuk               12.1 C               20.0 C

Duration of sunshine (King's Park):              2.3 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):        16.5 C 

Yesterday's (14 Feb 2018) 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 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 14 Feb
     2003copy right image | Important notices | Privacy policy Last revision date: <15 Feb 2018> 

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