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Bulletin issued at 11:02 HKT 06/Feb/2019

At 11 a.m. at the Hong Kong Observatory the air temperature was 23 degrees Celsius and the relative humidity 83 per cent.
During the past hour the mean UV Index recorded at King's Park was 3. The intensity of UV radiation was moderate.

The air temperatures at other places were:

King's Park 23 degrees;
Wong Chuk Hang 24 degrees;
Ta Kwu Ling 25 degrees;
Lau Fau Shan 23 degrees;
Tai Po 22 degrees;
Sha Tin 25 degrees;
Tuen Mun 24 degrees;
Tseung Kwan O 22 degrees;
Sai Kung 22 degrees;
Cheung Chau 25 degrees;
Chek Lap Kok 24 degrees;
Tsing Yi 23 degrees;
Shek Kong 25 degrees;
Tsuen Wan Ho Koon 23 degrees;
Tsuen Wan Shing Mun Valley 25 degrees;
Hong Kong Park 22 degrees;
Shau Kei Wan 23 degrees;
Kowloon City 23 degrees;
Happy Valley 24 degrees;
Wong Tai Sin 24 degrees;
Stanley 23 degrees;
Kwun Tong 23 degrees;
Sham Shui Po 24 degrees;
Kai Tak Runway Park 23 degrees;
Yuen Long Park 26 degrees;
Tai Mei Tuk 25 degrees.


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


Climatological Information for 6 Feb

Regional Weather in Hong Kong

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Bulletin updated at 10:45 HKT 06/Feb/2019

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

A humid maritime airstream is affecting the coast of Guangdong.

Weather forecast for today

Sunny periods. Mist and light rain patches in the morning and at night. Light to moderate southeasterly winds.

Outlook : Warm during the day in the next couple of days. There will be coastal fog in the morning and at night. Windier and slightly cooler over the weekend and early next week.


(The above forecast period is valid up to 23:59 HKT today, 06/02/2019; 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 06/Feb/2019

N0 WARNING.

GENERAL SITUATION AT 052100 UTC:
A SOUTHEASTERLY AIRSTREAM IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 060100 UTC:

HONG KONG= SE 3-4. DOWN TO 2000 M IN MIST OR LGT RAIN PATCHES. TEMP 25-20 C. =
KWANGTUNG= SE 4-5. DOWN TO 500 M IN FOG OR LGT RAIN PATCHES. SEA UP TO 2 M. =
TAIWAN STRAIT= NE 4-5, BEC S 4-5. DOWN TO 2000 M IN MIST OR LGT RAIN PATCHES. SEA UP TO 2 M. =
BASHI= SE 4-5. FINE. SEA UP TO 2 M. =
PRATAS= E 4-5. LGT RAIN PATCHES. SEA UP TO 2 M. =
BALINTANG= SE 4-5. FINE. SEA UP TO 2 M. =
SCARBOROUGH= E 4-5. FINE. SEA UP TO 2 M. =
PARACEL= S TO SE 4-5. FINE. SEA UP TO 2 M. =
TONKIN= S TO SE 4-5, OCNL 6. FINE. SEA UP TO 3 M. =
DANANG= S TO SE 4-5, OCNL 6. FINE. SEA UP TO 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
  • Tidal Information

    • SOUTH CHINA COASTAL WATERS
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    South China Coastal Waters

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    Bulletin issued at 09:30 HKT 06/Feb/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 9:30 a.m. on 06 February 2019

    Warnings:
    Fog in Shangchuan Dao.

    Weather Situation:
    A southeasterly airstream is affecting the south China coastal waters.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    Southeast force 3 to 4.
    Mist and light rain patches.
    Slight to moderate seas.

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

    Shangchuan Dao:
    South to southeast force 4 to 5.
    Fog patches.
    Moderate seas.

    Outlook for the next 48 hours
    South to southeasterly winds of force 4 to 5, becoming east to northeasterly winds of up to force 6 in east. Fog patches.

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

    Waglan Island Wind north-northeast force 3
      Visibility 5000 Metres

    Shantou Wind east-northeast force 1
      Visibility 4300 Metres in mist

    Dongsha Wind northeast force 2
      Visibility 10 Kilometres

    Huangmaozhou Wind east force 3

    Macau Wind south-southeast force 1

    Xisha Wind east force 1
      Visibility 22 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 09:30 HKT 06/FEB/2019
    (Next update at 12:30 HKT 06/FEB/2019)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL
II.  SYNOPSIS OF THE WEATHER SITUATION :
     A SOUTHEASTERLY AIRSTREAM IS AFFECTING THE SOUTH
     CHINA COASTAL AREAS.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  120/5-10
       OFFSHORE:  120/10-15                            21-26
   B.   2000 FT:  210/10                               17
   C.   5000 FT:  240/15                               12
   D.  10000 FT:  270/5                                10
   E.  18000 FT:  260/45                               MS6
   F.  24000 FT:  270/50                               MS18
   G.  30000 FT:  280/80                               MS29
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY CLOUDY. SUNNY PERIODS IN THE AFTERNOON.
      A FEW LIGHT RAIN PATCHES AT NIGHT. LOCALISED
      MIST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT SCT 3000 FT
   K. VISIBILITY    : 7 KM. TEMPO 2000 M IN MIST/RAIN.
   L. 0 DEG. C LEVEL: 15500 FT      10 DEG. C LEVEL(S) : 5400, 5800, 6400, 7600, 10000 FT
   M. TURBULENCE    : NIL
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 19 DEG
IV.  FURTHER OUTLOOK: 
     LIGHT TO MODERATE SOUTHEASTERLY WINDS. MAINLY
     CLOUDY. A FEW LIGHT RAIN PATCHES. LOCALIZED
     MIST/FOG .=

    ===================================================================
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.

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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.

    There is no Significant Weather Information (SIGMET)

    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 06/Feb/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     22.3 C
Minimum Air Temperature                     18.2 C
Grass Minimum Temperature                   17.5 C
Relative Humidity                        77 - 88 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January             4.7 mm
Against an average of                       30.8 mm

Other Stations                Min                  Max
King's Park                  17.5 C               23.0 C
Wong Chuk Hang               18.2 C               23.3 C
Ta Kwu Ling                  17.8 C               25.1 C
Lau Fau Shan                 17.0 C               25.6 C
Tai Po                       17.9 C               21.5 C
Sha Tin                      17.9 C               24.0 C
Tuen Mun                     18.6 C               23.0 C
Tseung Kwan O                17.2 C               22.0 C
Sai Kung                     17.9 C               21.4 C
Cheung Chau                  17.7 C               23.6 C
Chek Lap Kok                 19.2 C               26.0 C
Tsing Yi                     18.6 C               24.0 C
Shek Kong                    18.1 C               25.1 C
Tsuen Wan Ho Koon            17.4 C               23.7 C
Tsuen Wan Shing Mun Valley   18.3 C               24.6 C
Hong Kong Park               18.0 C               21.8 C
Shau Kei Wan                 17.2 C               21.4 C
Kowloon City                 17.5 C               24.0 C
Happy Valley                 18.1 C               23.7 C
Wong Tai Sin                 18.0 C               23.3 C
Stanley                      17.3 C               22.1 C
Kwun Tong                    17.2 C               22.7 C
Sham Shui Po                 18.4 C               23.6 C
Kai Tak Runway Park          17.9 C               21.8 C
Yuen Long Park               18.3 C               25.6 C
Tai Mei Tuk               17.4 C               25.2 C

Duration of sunshine (King's Park):              4.3 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 6.
 

Yesterday's (05 Feb 2019) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.09 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                           0.09
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 05 Feb
     2003copy right image | Important notices | Privacy policy Last revision date: <06 Feb 2019> 

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