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Bulletin issued at 18:02 HKT 09/Feb/2018

At 6 p.m. at the Hong Kong Observatory the air temperature was 17 degrees Celsius and the relative humidity 79 per cent.
During the past hour the mean UV Index recorded at King's Park was 0.1. The intensity of UV radiation was low.

The air temperatures at other places were:

King's Park 16 degrees;
Wong Chuk Hang 17 degrees;
Ta Kwu Ling 17 degrees;
Lau Fau Shan 16 degrees;
Tai Po 16 degrees;
Sha Tin 17 degrees;
Tuen Mun 17 degrees;
Tseung Kwan O 16 degrees;
Sai Kung 15 degrees;
Cheung Chau 16 degrees;
Chek Lap Kok 16 degrees;
Tsing Yi 17 degrees;
Shek Kong 18 degrees;
Tsuen Wan Ho Koon 16 degrees;
Tsuen Wan Shing Mun Valley 17 degrees;
Hong Kong Park 17 degrees;
Shau Kei Wan 16 degrees;
Kowloon City 16 degrees;
Happy Valley 17 degrees;
Wong Tai Sin 17 degrees;
Stanley 16 degrees;
Kwun Tong 16 degrees;
Sham Shui Po 17 degrees;
Kai Tak Runway Park 16 degrees;
Yuen Long Park 17 degrees;
Tai Mei Tuk 16 degrees.


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


Climatological Information for 9 Feb

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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Bulletin updated at 17:45 HKT 09/Feb/2018

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

A ridge of high pressure is bringing an easterly airstream to the coast of Guangdong. Meanwhile, pressure over northern China is rising. The associated cold air is extending southwards gradually.

Weather forecast for tonight and tomorrow

Mainly cloudy. Bright periods with relatively low visibility in some areas tomorrow. Temperatures will range between 15 and 19 degrees. Moderate northeasterly winds.

Outlook : Becoming cold on Sunday and Monday. Temperatures rising towards the Lunar New Year.


(The above forecast period is valid up to 23:59 HKT tomorrow, 10/02/2018; 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 09:00 HKT 09/Feb/2018

GALE WARNING AREAS: BASHI AND BALINTANG.

GENERAL SITUATION AT 082100 UTC:
THE NORTHEAST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 090100 UTC:

HONG KONG= E TO NE 4-5, OCNL 6. A FEW LIGHT RAIN PATCHES LATER. SEA UP TO 3 M. SWELL E TO NE UP TO 2 M. TEMP 17-15 C. =
KWANGTUNG= E TO NE 5-6. LGT RAIN PATCHES. SEA 2-3 M. SWELL E TO NE 2 M. =
TAIWAN STRAIT= NE 5-6. DOWN TO 4000 M IN MIST OR RAIN PATCHES. SEA 2-3 M. SWELL NE 2-3 M. =
BASHI= E TO NE 6-7, UP TO 8 AT FIRST. RAIN PATCHES. SEA 3-4 M, UP TO 6 M AT FIRST. SWELL E TO NE 3 M. =
PRATAS= E TO NE 5-6, UP TO 7 AT FIRST. RAIN PATCHES. SEA 2-3 M, UP TO 4 M AT FIRST. SWELL E TO NE 2-3 M. =
BALINTANG= E TO NE 6-7, UP TO 8 AT FIRST. RAIN PATCHES. SEA 3-4 M, UP TO 6 M AT FIRST. SWELL E TO NE 3 M. =
SCARBOROUGH= N TO NE 6-7. RAIN PATCHES. SEA 3-4 M. SWELL N TO NE 2-3 M. =
PARACEL= N TO NE 5-6. CLD. SEA 2-3 M. SWELL E TO NE 2 M. =
TONKIN= E 4. DOWN TO 4000 M IN MIST OR RAIN PATCHES. =
DANANG= E 4-5. LGT RAIN PATCHES. SEA UP TO 2 M. SWELL NE UP TO 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 16:30 HKT 09/Feb/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 4:30 p.m. on 09 February 2018

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

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

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    Northeast force 4 to 5.
    Relatively low visibility in some areas tomorrow
    Moderate seas.

    Nan'ao, Shanwei, South of Hong Kong and Shangchuan Dao:
    East to northeast force 5, occasionally force 6.
    Moderate to rough seas.

    Outlook for the next 48 hours
    North to northeasterly winds of force 6 to 7, east to northeasterly winds of force 5 at first.

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

    Waglan Island Wind north-northeast force 3
      Visibility 9 Kilometres

    Shantou Wind east-southeast force 2
      Visibility 14 Kilometres in rain

    Dongsha Wind northeast force 4
      Visibility 9 Kilometres in rain

    Huangmaozhou Wind northeast force 5

    Macau Wind north force 1
      Visibility 13 Kilometres

    Xisha Wind north-northeast force 2
      Visibility 26 Kilometres

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

    • WEATHER FORECAST FOR LOCAL AVIATION
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    Weather Forecast for Local Aviation

    Bulletin issued at 17:30 HKT 09/FEB/2018
    (Next update at 01:30 HKT 10/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 SOUTH
     CHINA COASTAL AREAS.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  070/10
       OFFSHORE:  070/10-15                            17-15
   B.   2000 FT:  040/10-15                            12
   C.   5000 FT:  200/10                               10
   D.  10000 FT:  270/25                               5
   E.  18000 FT:  260/55                               MS4
   F.  24000 FT:  250/60                               MS16
   G.  30000 FT:  250/70                               MS29
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      2100-3800 FT
   I. WEATHER       : 
      MAINLY CLOUDY. LOCALISED MIST/HAZE.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT  SCT 4000 FT BKN 6000 FT
   K. VISIBILITY    : 8 KM.  TEMPO 4000 M IN MIST/HAZE.
   L. 0 DEG. C LEVEL: 16500 FT      10 DEG. C LEVEL(S) : 5000 FT
   M. TURBULENCE    : NIL
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 16 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE NORTHEASTERLY WINDS. BRIGHT PERIODS.
     LOCALISED MIST/HAZE.=

    ===================================================================
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 16:05 HKT on 07 Feb 18

    VHHK SIGMET 1 VALID 070605/070805 VHHH- VHHK HONG KONG FIR SEV TURB FCST WI N2212 E11300 - N2230 E11342 - N2342 E11730 - N2200 E11730 - N2100 E11300 - N2212 E11300 FL100/160 MOV E 10KT NC= VHHK SIGMET 2 VALID 070805/071105 VHHH- VHHK HONG KONG FIR SEV TURB FCST WI N2236 E11412 - N2342 E11730 - N2154 E11730 - N2118 E11418 - N2236 E11412 FL100/160 MOV E 10KT 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 09/Feb/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     16.7 C
Minimum Air Temperature                     11.3 C
Grass Minimum Temperature                    9.5 C
Relative Humidity                        48 - 80 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January            62.2 mm
Against an average of                       40.8 mm

Other Stations                Min                  Max
King's Park                  10.6 C               17.5 C
Wong Chuk Hang                9.9 C               17.1 C
Ta Kwu Ling                   6.6 C               17.9 C
Lau Fau Shan                  8.9 C               19.3 C
Tai Po                        9.2 C               16.3 C
Sha Tin                      10.2 C               17.1 C
Tuen Mun                     10.2 C               18.5 C
Tseung Kwan O                 9.3 C               17.2 C
Sai Kung                     11.2 C               15.4 C
Cheung Chau                  10.0 C               17.5 C
Chek Lap Kok                 11.2 C               17.6 C
Tsing Yi                      9.9 C               18.0 C
Shek Kong                     8.3 C               18.8 C
Tsuen Wan Ho Koon             8.9 C               18.3 C
Tsuen Wan Shing Mun Valley    8.4 C               17.8 C
Hong Kong Park               10.9 C               17.1 C
Shau Kei Wan                 10.6 C               17.5 C
Kowloon City                 10.7 C               18.3 C
Happy Valley                 10.3 C               18.0 C
Wong Tai Sin                 10.3 C               17.9 C
Stanley                      11.4 C               16.3 C
Kwun Tong                    10.7 C               15.8 C
Sham Shui Po                 10.9 C               18.4 C
Kai Tak Runway Park          11.0 C               16.6 C
Yuen Long Park                9.4 C               18.6 C
Tai Mei Tuk                9.9 C               18.2 C

Duration of sunshine (King's Park):              8.1 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):        15.1 C 

Yesterday's (08 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                               0.11
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 08 Feb
     2003copy right image | Important notices | Privacy policy Last revision date: <09 Feb 2018> 

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