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Bulletin issued at 22:02 HKT 03/Feb/2019

At 10 p.m. at the Hong Kong Observatory the air temperature was 21 degrees Celsius and the relative humidity 88 per cent.

The air temperatures at other places were:

King's Park 20 degrees;
Wong Chuk Hang 19 degrees;
Ta Kwu Ling 20 degrees;
Lau Fau Shan 21 degrees;
Tai Po 20 degrees;
Sha Tin 20 degrees;
Tuen Mun 21 degrees;
Tseung Kwan O 19 degrees;
Sai Kung 19 degrees;
Cheung Chau 19 degrees;
Chek Lap Kok 22 degrees;
Tsing Yi 20 degrees;
Shek Kong 19 degrees;
Tsuen Wan Ho Koon 19 degrees;
Tsuen Wan Shing Mun Valley 20 degrees;
Hong Kong Park 20 degrees;
Shau Kei Wan 20 degrees;
Kowloon City 20 degrees;
Happy Valley 20 degrees;
Wong Tai Sin 21 degrees;
Stanley 20 degrees;
Kwun Tong 21 degrees;
Sham Shui Po 20 degrees;
Kai Tak Runway Park 20 degrees;
Yuen Long Park 20 degrees;
Tai Mei Tuk 20 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

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Hong Kong Climatology


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Bulletin updated at 21:45 HKT 03/Feb/2019

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

Winds are weak over the coastal areas of Guangdong.

Weather forecast for tonight and tomorrow

Mainly cloudy. Coastal fog tonight and tomorrow morning. Sunny periods during the day. One or two light rain patches tomorrow night. Temperatures will range between 20 and 25 degrees. Light winds, becoming moderate to fresh easterlies tomorrow night.

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


(The above forecast period is valid up to 23:59 HKT tomorrow, 04/02/2019; 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 21:00 HKT 03/Feb/2019

N0 WARNING.

GENERAL SITUATION AT 030900 UTC:
AN EASTERLY AIRSTREAM IS GENERALLY AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 031300 UTC:

HONG KONG= E TO SE 4, E 5 LATER. DOWN TO 500 M IN FOG OR LGT RAIN PATCHES. SEA UP TO 2 M LATER. TEMP 20-25 C. =
KWANGTUNG= E 4-5, BEC NE 6-7 IN E. DOWN TO 500 M IN FOG OR LGT RAIN PATCHES. SEA UP TO 2 M, BEC 3-4 M IN E. SWELL E UP TO 2 M. =
TAIWAN STRAIT= SE 4-5, BEC NE 6-7. DOWN TO 500 M IN FOG OR LGT RAIN PATCHES AT FIRST. SEA UP TO 2 M, BEC 3-4 M. SWELL E TO NE UP TO 2 M. =
BASHI= SE 5-6, NE 5-6 LATER. LGT RAIN PATCHES. SEA 2-3 M. SWELL E 2 M. =
PRATAS= E 4-5, NE 5-6 LATER. DOWN TO 2000 M IN MIST PATCHES AT FIRST. SEA UP TO 2 M, 3 M LATER. SWELL E 2 M. =
BALINTANG= E TO SE 5-6. LGT RAIN PATCHES. SEA 2-3 M. SWELL E 2 M. =
SCARBOROUGH= NE 4-5. FINE. SEA UP TO 2 M. SWELL E TO NE UP TO 2 M. =
PARACEL= E 4-5. DOWN TO 2000 M IN MIST PATCHES. SEA UP TO 2 M. SWELL E UP TO 2 M. =
TONKIN= E TO SE 4, OCNL 5. DOWN TO 500 M IN FOG OR LGT RAIN PATCHES. SEA UP TO 2 M. =
DANANG= E TO 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
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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 19:30 HKT 03/Feb/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 7:30 p.m. on 03 February 2019

    Warnings:
    Strong winds in Nan'ao and Shanwei. Fog in Hong Kong adjacent waters, 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 to southeast force 4, becoming east force 5 later.
    A few light rain patches. Fog patches.
    Moderate seas.

    Nan'ao:
    East force 4 to 5, becoming northeast force 6 to 7.
    Moderate seas, becoming rough.

    Shanwei:
    East force 4 to 5, becoming northeast force 6 later.
    Moderate seas, becoming rough later.

    South of Hong Kong and Shangchuan Dao:
    East force 4 to 5.
    Fog patches.
    Moderate seas.

    Outlook for the next 48 hours
    East to 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 south-southeast force 1
      Visibility 6 Kilometres

    Shantou Wind southeast force 2
      Visibility 14 Kilometres

    Dongsha Wind west force 1
      Visibility 10 Kilometres

    Huangmaozhou Wind southeast force 3

    Macau Wind southeast force 2
      Visibility 8 Kilometres

    Xisha Wind east-southeast force 1
      Visibility 30 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 03/FEB/2019
    (Next update at 01:30 HKT 04/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 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  120/5-10                             24-19
   B.   2000 FT:  340/10                               18
   C.   5000 FT:  360/10                               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. A FEW LIGHT RAIN PATCHES WITH
      LOCALISED MIST/FOG.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2500 FT SCT 4000 FT
   K. VISIBILITY    : 7 KM. TEMPO 3000 M IN MIST/RAIN. TEMPO 800 M IN FOG.
   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. SUNNY PERIODS DURING THE DAY. 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.

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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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