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Bulletin issued at 10:02 HKT 03/Feb/2019

At 10 a.m. at the Hong Kong Observatory the air temperature was 22 degrees Celsius and the relative humidity 83 per cent.
During the past hour the mean UV Index recorded at King's Park was 2. The intensity of UV radiation was low.

The air temperatures at other places were:

King's Park 22 degrees;
Wong Chuk Hang 22 degrees;
Ta Kwu Ling 22 degrees;
Lau Fau Shan 20 degrees;
Tai Po 20 degrees;
Sha Tin 22 degrees;
Tuen Mun 23 degrees;
Tseung Kwan O 23 degrees;
Sai Kung 21 degrees;
Cheung Chau 23 degrees;
Chek Lap Kok 23 degrees;
Tsing Yi 23 degrees;
Shek Kong 23 degrees;
Tsuen Wan Ho Koon 22 degrees;
Tsuen Wan Shing Mun Valley 23 degrees;
Hong Kong Park 22 degrees;
Shau Kei Wan 23 degrees;
Kowloon City 23 degrees;
Happy Valley 23 degrees;
Wong Tai Sin 23 degrees;
Stanley 22 degrees;
Kwun Tong 23 degrees;
Sham Shui Po 23 degrees;
Kai Tak Runway Park 22 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 3 Feb

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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Bulletin updated at 09:45 HKT 03/Feb/2019

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

The band of clouds covering the south China coast is thinning out gradually.

Weather forecast for today

Sunny periods. Mainly cloudy with mist patches tonight. Light to moderate easterly winds.

Outlook : Warm with occasional sunshine and coastal fog patches in the next few days. However, it will be windier on Lunar New Year's Eve and New Year's Day.


(The above forecast period is valid up to 23:59 HKT today, 03/02/2019; 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 03/Feb/2019

N0 WARNING.

GENERAL SITUATION AT 022100 UTC:
TROUGH 25N 105E 27N 110E 30N 120E SE SLOWLY.

MARINE FORECAST FOR 24 HOURS FROM 030100 UTC:

HONG KONG= SE 4-5. DOWN TO 2000 M IN MIST OR LGT RAIN PATCHES. SEA UP TO 2 M. SWELL E 2 M. TEMP 24-19 C. =
KWANGTUNG= SE 4-5, UP TO 6 IN E LATER. DOWN TO 2000 M IN MIST OR LGT RAIN PATCHES. SEA 2 M, UP TO 3 M LATER. SWELL E 2 M. =
TAIWAN STRAIT= SE 5-6, NE 6-7 LATER. DOWN TO 4000 M IN MIST OR RAIN PATCHES. SEA 2-3 M, 4 M LATER. SWELL E TO NE 2 M. =
BASHI= SE 5-6. LGT RAIN PATCHES. SEA 2-3 M. SWELL E 2 M. =
PRATAS= SE 4-5. DOWN TO 2000 M IN MIST PATCHES. SEA UP TO 2 M. SWELL E 2 M. =
BALINTANG= SE 5-6. LGT RAIN PATCHES. SEA 2-3 M. SWELL E 2 M. =
SCARBOROUGH= E TO SE 4-5. FINE. SEA UP TO 2 M. SWELL E TO NE 2 M. =
PARACEL= SE 4-5. DOWN TO 2000 M IN MIST PATCHES. SEA UP TO 2 M. SWELL E 2 M. =
TONKIN= SE 4, OCNL 5. DOWN TO 2000 M IN MIST PATCHES. SEA UP TO 2 M. SWELL E UP TO 2 M. =
DANANG= SE 4-5. DOWN TO 2000 M IN MIST OR LGT RAIN PATCHES. SEA UP TO 2 M. SWELL E 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 09:30 HKT 03/Feb/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 9:30 a.m. on 03 February 2019

    Warnings:
    Strong winds in Nan'ao.

    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 4 to 5.
    A few light rain and mist patches.
    Moderate seas.

    Nan'ao:
    Southeast force 4 to 5, becoming northeast up to force 6 later.
    Moderate seas, becoming rough later.

    Shanwei, South of Hong Kong and Shangchuan Dao:
    Southeast force 4 to 5.
    Moderate seas.

    Outlook for the next 48 hours
    Southeasterly winds of force 4 to 5, northeasterly winds of force 6 to 7 in east. Fog patches.

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

    Waglan Island Wind north-northeast force 2
      Visibility 7 Kilometres

    Shantou Wind calm
      Visibility 7 Kilometres

    Dongsha Wind east-southeast force 1
      Visibility 10 Kilometres

    Huangmaozhou Wind east force 3

    Macau Wind east-southeast force 1
      Visibility 6 Kilometres

    Xisha Wind calm
      Visibility 10 Kilometres

  • Explanation of Seas or Sea Waves
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  • 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 09:00 HKT 03/FEB/2019
    (Next update at 12:30 HKT 03/FEB/2019)
    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 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  090/5-10                             21-26
   B.   2000 FT:  200/10
                  BECMG 360/10                         17
   C.   5000 FT:  240/10                               12
   D.  10000 FT:  260/25                               13
   E.  18000 FT:  260/35                               MS5
   F.  24000 FT:  240/55                               MS19
   G.  30000 FT:  260/60                               MS27
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY CLOUDY. SUNNY PERIODS IN THE AFTERNOON.
      A FEW LIGHT RAIN PATCHES. LOCALISED MIST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT
   K. VISIBILITY    : 7 KM. TEMPO 3000 M IN MIST/RAIN.
   L. 0 DEG. C LEVEL: 16000 FT      10 DEG. C LEVEL(S) : 11400 FT
   M. TURBULENCE    : NIL
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 19 DEG
IV.  FURTHER OUTLOOK: 
     LIGHT WINDS. MAINLY CLOUDY WITH A FEW LIGHT RAIN
     PATCHES. LOCALISED 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.

    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.

    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 03/Feb/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     20.7 C
Minimum Air Temperature                     16.9 C
Grass Minimum Temperature                   16.3 C
Relative Humidity                        73 - 86 Percent
Rainfall                                      Trace 
Total rainfall since 1st January             4.7 mm
Against an average of                       26.6 mm

Other Stations                Min                  Max
King's Park                  16.2 C               21.5 C
Wong Chuk Hang               16.5 C               23.0 C
Ta Kwu Ling                  16.8 C               23.6 C
Lau Fau Shan                 16.0 C               27.1 C
Tai Po                       16.3 C               20.1 C
Sha Tin                      16.5 C               20.9 C
Tuen Mun                     17.1 C               23.0 C
Tseung Kwan O                16.3 C               19.3 C
Sai Kung                     16.7 C               19.6 C
Cheung Chau                  16.7 C               22.8 C
Chek Lap Kok                 17.3 C               24.7 C
Tsing Yi                     17.0 C               22.8 C
Shek Kong                    16.8 C               25.8 C
Tsuen Wan Ho Koon            15.7 C               24.4 C
Tsuen Wan Shing Mun Valley   16.5 C               23.3 C
Hong Kong Park               16.6 C               20.3 C
Shau Kei Wan                 16.0 C               18.9 C
Kowloon City                 16.0 C               22.6 C
Happy Valley                 16.8 C               21.3 C
Wong Tai Sin                 16.5 C               22.6 C
Stanley                      16.3 C               19.9 C
Kwun Tong                    15.7 C               19.7 C
Sham Shui Po                 16.8 C               23.1 C
Kai Tak Runway Park          16.6 C               19.7 C
Yuen Long Park               16.8 C               26.2 C
Tai Mei Tuk               16.1 C               23.1 C

Duration of sunshine (King's Park):              5.1 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 7.
 

Yesterday's (02 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                           0.13
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 02 Feb
     2003copy right image | Important notices | Privacy policy Last revision date: <03 Feb 2019> 

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