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Bulletin issued at 04:02 HKT 14/Feb/2018

At 4 a.m. at the Hong Kong Observatory the air temperature was 15 degrees Celsius and the relative humidity 56 per cent.

The air temperatures at other places were:

King's Park 14 degrees;
Wong Chuk Hang 16 degrees;
Ta Kwu Ling 10 degrees;
Lau Fau Shan 12 degrees;
Tai Po 12 degrees;
Sha Tin 13 degrees;
Tuen Mun 13 degrees;
Tseung Kwan O 12 degrees;
Sai Kung 13 degrees;
Cheung Chau 13 degrees;
Chek Lap Kok 16 degrees;
Tsing Yi 13 degrees;
Shek Kong 11 degrees;
Tsuen Wan Ho Koon 12 degrees;
Tsuen Wan Shing Mun Valley 13 degrees;
Hong Kong Park 13 degrees;
Shau Kei Wan 14 degrees;
Kowloon City 14 degrees;
Happy Valley 14 degrees;
Wong Tai Sin 14 degrees;
Stanley 14 degrees;
Kwun Tong 15 degrees;
Sham Shui Po 14 degrees;
Kai Tak Runway Park 15 degrees;
Yuen Long Park 11 degrees;
Tai Mei Tuk 13 degrees.


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


Climatological Information for 14 Feb

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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Bulletin updated at 03:45 HKT 14/Feb/2018

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

An easterly airstream is affecting the coastal areas of Guangdong.

At 2 a.m., Tropical Storm Sanba was centred about 620 kilometres south of Manila. It is forecast to move west at about 25 kilometres per hour across the southern part of the Philippines.

Weather forecast for today

Mainly cloudy. Cool in the morning. The minimum temperature will be about 14 degrees in the urban areas, and a couple of degrees lower in the New Territories. Sunny periods during the day with a maximum temperature of around 19 degrees. Coastal mist at night. Moderate easterly winds.

Outlook : The weather will be mild and humid with fog during the Lunar New Year's Eve and the New Year Holidays.


(The above forecast period is valid up to 23:59 HKT today, 14/02/2018; 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 13/Feb/2018

N0 WARNING.

GENERAL SITUATION AT 130900 UTC:
AN EASTERLY AIRSTREAM IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 131300 UTC:

HONG KONG= E 4-5. CLD. DOWN TO 4000 M IN MIST PATCHES LATER. SEA UP TO 2 M. SWELL E TO NE UP TO 2 M. TEMP 14-19 C. =
KWANGTUNG= E 5, OCNL 6. CLD. DOWN TO 4000 M IN MIST PATCHES. SEA UP TO 3 M. SWELL E TO NE 2 M. =
TAIWAN STRAIT= E TO NE 5-6. CLD. SEA 2-3 M. SWELL NE 2 M. =
BASHI= E 6-7. LGT RAIN PATCHES. SEA 3-4 M. SWELL NE 2-3 M. =
PRATAS= E 5-6, OCNL 7. CLD. SEA UP TO 4 M. SWELL NE 2-3 M. =
BALINTANG= E 6-7. LGT RAIN PATCHES. SEA 3-4 M. SWELL NE 2-3 M. =
SCARBOROUGH= NE 6-7. LGT RAIN PATCHES. SEA 3-4 M. SWELL NE 2-3 M. =
PARACEL= E 5, OCNL 6. CLD. SEA UP TO 3 M. SWELL NE 2-3 M. =
TONKIN= SE 4. DOWN TO 4000 M IN MIST PATCHES. =
DANANG= E TO SE 4-5. DOWN TO 4000 M IN MIST PATCHES. SEA UP TO 2 M. SWELL NE 2-3 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 03:30 HKT 14/Feb/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 3:30 a.m. on 14 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:
    East force 4 to 5.
    Coastal mist later.
    Moderate seas.

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

    Outlook for the next 48 hours
    Easterly winds of force 4, occasionally force 5. Fog patches.

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

    Waglan Island Wind northeast force 4
      Visibility 13 Kilometres

    Shantou Wind east-northeast force 1
      Visibility 18 Kilometres

    Huangmaozhou Wind east-northeast force 4

    Macau Wind northeast force 1
      Visibility 14 Kilometres

    Xisha Wind east-northeast force 1
      Visibility 12 Kilometres

  • Explanation of Seas or Sea Waves
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    • WEATHER FORECAST FOR LOCAL AVIATION
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    Weather Forecast for Local Aviation

    Bulletin issued at 01:30 HKT 14/FEB/2018
    (Next update at 9:00-9:30 HKT 14/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 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  080/10
       OFFSHORE:  080/15-20                            15-21
   B.   2000 FT:  160/15-20                            14
   C.   5000 FT:  180/15                               11
   D.  10000 FT:  260/25                               10
   E.  18000 FT:  270/35                               MS3
   F.  24000 FT:  280/40                               MS16
   G.  30000 FT:  270/60                               MS28
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      1000-1700 FT, 4200-4900 FT
   I. WEATHER       : 
      MAINLY CLOUDY.  SUNNY PERIODS DURING THE DAY.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 4000 FT
   K. VISIBILITY    : 9 KM.
   L. 0 DEG. C LEVEL: 16000 FT      10 DEG. C LEVEL(S) : 3700, 4400, 5200, 8800, 10000 FT
   M. TURBULENCE    : MOD OFFSHORE AND NEAR HILLS
   N. SEA STATE     : 2.0-2.5 M     SEA TEMPERATURE    : 16 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EASTERLY WINDS. SUNNY PERIODS. COASTAL
     MIST AT NIGHT.=

    ===================================================================
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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    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 14/Feb/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     18.4 C
Minimum Air Temperature                     12.8 C
Grass Minimum Temperature                   11.0 C
Relative Humidity                        42 - 84 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January            62.2 mm
Against an average of                       48.9 mm

Other Stations                Min                  Max
King's Park                  12.0 C               18.4 C
Wong Chuk Hang               10.1 C               18.5 C
Ta Kwu Ling                   5.5 C               20.5 C
Lau Fau Shan                  9.3 C               17.6 C
Tai Po                       10.4 C               18.2 C
Sha Tin                       9.4 C               19.2 C
Tuen Mun                     10.3 C               20.1 C
Tseung Kwan O                 9.5 C               18.1 C
Sai Kung                     10.1 C               16.2 C
Cheung Chau                  11.8 C               19.2 C
Chek Lap Kok                 11.6 C               19.6 C
Tsing Yi                     11.3 C               20.1 C
Shek Kong                     7.8 C               21.5 C
Tsuen Wan Ho Koon             8.9 C               20.6 C
Tsuen Wan Shing Mun Valley    9.5 C               20.5 C
Hong Kong Park               12.3 C               19.1 C
Shau Kei Wan                 11.6 C               16.8 C
Kowloon City                 11.8 C               19.9 C
Happy Valley                 11.1 C               19.2 C
Wong Tai Sin                 11.2 C               19.2 C
Stanley                      12.5 C               17.6 C
Kwun Tong                    11.8 C               18.0 C
Sham Shui Po                 11.8 C               19.8 C
Kai Tak Runway Park          13.1 C               17.2 C
Yuen Long Park                7.8 C               21.4 C
Tai Mei Tuk               11.1 C               20.0 C

Duration of sunshine (King's Park):              10.5 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 7.
Sea surface temperature (Waglan Island):        17.2 C 

Yesterday's (13 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 13 Feb
     2003copy right image | Important notices | Privacy policy Last revision date: <14 Feb 2018> 

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