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Bulletin issued at 19:02 HKT 19/Feb/2018

At 7 p.m. at the Hong Kong Observatory the air temperature was 22 degrees Celsius and the relative humidity 82 per cent.

The air temperatures at other places were:

King's Park 22 degrees;
Wong Chuk Hang 21 degrees;
Ta Kwu Ling 23 degrees;
Lau Fau Shan 20 degrees;
Tai Po 21 degrees;
Sha Tin 23 degrees;
Tuen Mun 22 degrees;
Tseung Kwan O 20 degrees;
Sai Kung 20 degrees;
Cheung Chau 20 degrees;
Chek Lap Kok 23 degrees;
Tsing Yi 22 degrees;
Shek Kong 24 degrees;
Tsuen Wan Ho Koon 22 degrees;
Tsuen Wan Shing Mun Valley 23 degrees;
Hong Kong Park 21 degrees;
Shau Kei Wan 21 degrees;
Kowloon City 22 degrees;
Happy Valley 23 degrees;
Wong Tai Sin 22 degrees;
Stanley 21 degrees;
Kwun Tong 22 degrees;
Sham Shui Po 23 degrees;
Kai Tak Runway Park 21 degrees;
Yuen Long Park 23 degrees;
Tai Mei Tuk 22 degrees.


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


Climatological Information for 19 Feb

Regional Weather in Hong Kong

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Hong Kong Climatology


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Bulletin updated at 18:45 HKT 19/Feb/2018

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

A mild easterly airstream is affecting the coastal areas of Guangdong. Locally, temperatures over the territory in the afternoon were generally about four degrees higher than those of yesterday.

Weather forecast for tonight and tomorrow

Mainly cloudy. Visibility relatively low in some areas. The minimum temperature will be about 20 degrees. Warm with sunny intervals during the day tomorrow. The maximum temperature will be around 25 degrees. Light to moderate easterly winds.

Outlook : Becoming cool in the following couple of days.


(The above forecast period is valid up to 23:59 HKT tomorrow, 20/02/2018; 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 19/Feb/2018

N0 WARNING.

GENERAL SITUATION AT 182100 UTC:
TROUGH 25N 106E 25N 114E 29N 125E QSTNR.

MARINE FORECAST FOR 24 HOURS FROM 190100 UTC:

HONG KONG= E 4. DOWN TO 500 M IN FOG OR RAIN PATCHES. TEMP 24-18 C. =
KWANGTUNG= E 4-5. DOWN TO 500 M IN FOG OR RAIN PATCHES. SEA UP TO 2 M. =
TAIWAN STRAIT= NE 4-5, 6 LATER. DOWN TO 1000 M IN MIST OR RAIN PATCHES. SEA UP TO 2 M, 3 M LATER. =
BASHI= E 5, OCNL 6. RAIN PATCHES. SEA UP TO 3 M. =
PRATAS= E 4-5. RAIN PATCHES. SEA UP TO 2 M. =
BALINTANG= E 5, OCNL 6. RAIN PATCHES. SEA UP TO 3 M. =
SCARBOROUGH= E TO NE 4-5. FINE. SEA UP TO 2 M. =
PARACEL= E 4, OCNL 5. FINE. SEA UP TO 2 M. =
TONKIN= E TO SE 4. DOWN TO 500 M IN FOG OR RAIN PATCHES. =
DANANG= E 4, OCNL 5. FINE. SEA 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
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    • SOUTH CHINA COASTAL WATERS
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    South China Coastal Waters

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    Bulletin issued at 19:30 HKT 19/Feb/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 7:30 p.m. on 19 February 2018

    Warnings:
    Fog in 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 3 to 4.
    Visibility relatively low in some areas.
    Slight to moderate seas.

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

    Shangchuan Dao:
    East force 4, occasionally force 5.
    Fog patches.
    Moderate seas.

    Outlook for the next 48 hours
    Easterly winds of force 4 to 5, becoming northeasterly winds up to force 7 later. Fog patches at first.

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

    Waglan Island Wind east-northeast force 2
      Visibility 15 Kilometres

    Shantou Wind southeast force 2
      Visibility 27 Kilometres

    Dongsha Wind east-northeast force 3
      Visibility 10 Kilometres

    Huangmaozhou Wind east-southeast force 4

    Macau Wind south-southeast force 2
      Visibility 7 Kilometres

    Xisha Wind northeast force 2
      Visibility 28 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 17:30 HKT 19/FEB/2018
    (Next update at 01:30 HKT 20/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 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  080/5-10
       OFFSHORE:  080/10-15                            23-19
   B.   2000 FT:  160/10-15                            18
   C.   5000 FT:  180/10                               15
   D.  10000 FT:  260/20                               9
   E.  18000 FT:  260/30                               MS5
   F.  24000 FT:  260/40                               MS18
   G.  30000 FT:  250/60                               MS31
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      1500 - 2200 FT.
   I. WEATHER       : 
      MAINLY CLOUDY.  LOCALIZED MIST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT  SCT 4000 FT.
   K. VISIBILITY    : 7 KM.  TEMPO 3000 M IN MIST.
   L. 0 DEG. C LEVEL: 15500 FT
      10 DEG. C LEVEL(S) : 7000, 11000 FT
   M. TURBULENCE    : NIL.
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 17 DEG
IV.  FURTHER OUTLOOK: 
     LIGHT TO MODERATE EASTERLY WINDS.  MAINLY
     CLOUDY.  SUNNY INTERVALS DURING THE DAY.
     LOCALIZED 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 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 19/Feb/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     20.2 C
Minimum Air Temperature                     16.5 C
Grass Minimum Temperature                   15.5 C
Relative Humidity                        73 - 84 Percent
Rainfall                                     0.0 mm 
Total rainfall since 1st January            62.2 mm
Against an average of                       60.3 mm

Other Stations                Min                  Max
King's Park                  15.7 C               20.5 C
Wong Chuk Hang               16.8 C               20.8 C
Ta Kwu Ling                  15.8 C               22.2 C
Lau Fau Shan                 15.4 C               22.2 C
Tai Po                       16.4 C               20.4 C
Sha Tin                      16.4 C               20.5 C
Tuen Mun                     16.5 C               21.0 C
Tseung Kwan O                15.6 C               19.1 C
Sai Kung                     16.1 C               19.1 C
Cheung Chau                  16.1 C               18.9 C
Chek Lap Kok                 17.3 C               22.3 C
Tsing Yi                     17.0 C               21.4 C
Shek Kong                    16.0 C               22.6 C
Tsuen Wan Ho Koon            16.0 C               21.3 C
Tsuen Wan Shing Mun Valley   16.8 C               21.6 C
Hong Kong Park               16.3 C               21.5 C
Shau Kei Wan                 15.4 C               18.6 C
Kowloon City                 16.0 C               20.5 C
Happy Valley                 16.2 C               21.0 C
Wong Tai Sin                 16.4 C               21.0 C
Stanley                      15.8 C               20.0 C
Kwun Tong                    15.5 C               21.1 C
Sham Shui Po                 16.8 C               21.2 C
Kai Tak Runway Park          16.4 C               19.3 C
Yuen Long Park               16.0 C               22.6 C
Tai Mei Tuk               15.9 C               20.9 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 5.
Sea surface temperature (Waglan Island):        16.9 C 

Yesterday's (18 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 18 Feb
     2003copy right image | Important notices | Privacy policy Last revision date: <19 Feb 2018> 

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