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Bulletin issued at 10:02 HKT 06/Jan/2019

At 10 a.m. at the Hong Kong Observatory the air temperature was 19 degrees Celsius and the relative humidity 78 per cent.
During the past hour the mean UV Index recorded at King's Park was 1. The intensity of UV radiation was low.

The air temperatures at other places were:

King's Park 19 degrees;
Wong Chuk Hang 19 degrees;
Ta Kwu Ling 17 degrees;
Lau Fau Shan 17 degrees;
Tai Po 17 degrees;
Sha Tin 17 degrees;
Tuen Mun 18 degrees;
Tseung Kwan O 18 degrees;
Sai Kung 17 degrees;
Cheung Chau 18 degrees;
Chek Lap Kok 17 degrees;
Tsing Yi 19 degrees;
Shek Kong 18 degrees;
Tsuen Wan Ho Koon 17 degrees;
Tsuen Wan Shing Mun Valley 18 degrees;
Hong Kong Park 19 degrees;
Shau Kei Wan 18 degrees;
Kowloon City 19 degrees;
Happy Valley 20 degrees;
Wong Tai Sin 19 degrees;
Stanley 19 degrees;
Kwun Tong 19 degrees;
Sham Shui Po 18 degrees;
Kai Tak Runway Park 19 degrees;
Yuen Long Park 18 degrees;
Tai Mei Tuk 19 degrees.


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


Climatological Information for 6 Jan

Regional Weather in Hong Kong

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Bulletin updated at 09:45 HKT 06/Jan/2019

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

A weak replenishment of the northeast monsoon is affecting the south China coast. Meanwhile, a band of clouds is covering the region.

Weather forecast for today

Mainly cloudy. One or two light rain patches at first. Moderate northerly winds, easterlies strengthening later.

Outlook : Sunny intervals with temperatures rising in the next couple of days. A few rain patches midweek this week.


(The above forecast period is valid up to 23:59 HKT today, 06/01/2019; 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/Jan/2019

GALE WARNING AREA: TAIWAN STRAIT.

GENERAL SITUATION AT 052100 UTC:
THE NORTHEAST MONSOON IS GENERALLY AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 060100 UTC:

HONG KONG= N 3-4, BEC E 5, OCNL 6 LATER. LGT RAIN PATCHES AT FIRST. SEA UP TO 3 M LATER. SWELL E TO NE 2 M. TEMP 20-18 C. =
KWANGTUNG= NE 5-6, UP TO 7 IN E. DOWN TO 2000 M IN MIST OR RAIN PATCHES AT FIRST. SEA 2-3 M, UP TO 4 M IN E. SWELL E TO NE 2 M. =
TAIWAN STRAIT= NE 6-7, OCNL 8. RAIN PATCHES. SEA UP TO 6 M. SWELL NE 2-3 M. =
BASHI= E TO NE 5-6, OCNL 7. RAIN PATCHES. SEA UP TO 4 M. SWELL E TO NE 2-3 M. =
PRATAS= E TO NE 5-6, OCNL 7. DOWN TO 2000 M IN MIST OR RAIN PATCHES AT FIRST. SEA UP TO 4 M. SWELL E TO NE 2-3 M. =
BALINTANG= E TO NE 5-6, OCNL 7. FINE. SEA UP TO 4 M. SWELL E TO NE 2-3 M. =
SCARBOROUGH= NE 4-5, OCNL 6. FINE. SEA UP TO 3 M. SWELL NE 2 M. =
PARACEL= E TO NE 4-5, OCNL 6. DOWN TO 2000 M IN MIST OR RAIN PATCHES IN N AT FIRST. SEA UP TO 3 M. SWELL NE 2 M. =
TONKIN= E TO NE 4-5. DOWN TO 2000 M IN MIST OR RAIN PATCHES. SEA UP TO 2 M. =
DANANG= E TO NE 4-5. RAIN PATCHES. SEA UP TO 2 M. SWELL NE 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 06/Jan/2019

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

    Warnings:
    Gale force winds in Nan'ao. Strong winds in Hong Kong adjacent waters, Shanwei, south of Hong Kong and Shangchuan Dao.

    Weather Situation:
    A weak replenishment of the northeast monsoon is affecting the south China coastal waters.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    North force 3 to 4, becoming east to northeast force 5 to 6 later.
    One or two light rain patches.
    Moderate seas, becoming rough later.

    Nan'ao:
    Northeast force 6 to 7, occasionally force 8.
    Rough to very rough seas.

    Shanwei:
    Northeast force 5 to 6, occasionally force 7.
    Moderate to rough seas.

    South of Hong Kong and Shangchuan Dao:
    Northeast force 4 to 5, becoming east to northeast force 5 to 6 later.
    Moderate seas, becoming rough later.

    Outlook for the next 48 hours
    East to northeasterly winds of force 6 to 7, up to force 8 in east later.

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

    Waglan Island Wind north-northeast force 3

    Shantou Wind south force 1
      Visibility 30 Kilometres

    Dongsha Wind northeast force 3
      Visibility 10 Kilometres

    Huangmaozhou Wind north-northwest force 4

    Macau Wind north force 2
      Visibility 8 Kilometres

    Xisha Wind east-northeast force 2
      Visibility 21 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 09:00 HKT 06/JAN/2019
    (Next update at 12:30 HKT 06/JAN/2019)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     A WEAK REPLENISHMENT OF THE NORTHEAST MONSOON IS
     AFFECTING THE SOUTH CHINA COAST.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  360/10 BEC 080/10-15
       OFFSHORE:  360/10 BEC 080/15-20                 17-20
   B.   2000 FT:  360/15 BEC 080/15-20                 15
   C.   5000 FT:  160/10                               13
   D.  10000 FT:  230/15                               10
   E.  18000 FT:  250/30                               MS5
   F.  24000 FT:  250/40                               MS17
   G.  30000 FT:  250/50                               MS29
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      1600 - 2400 FT.
   I. WEATHER       : 
      MAINLY CLOUDY.  A FEW LIGHT RAIN PATCHES AT
      FIRST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1000 FT  SCT 3000 FT  BKN 10000 FT.
   K. VISIBILITY    : 9 KM.  TEMPO 4000 M IN RAIN.
   L. 0 DEG. C LEVEL: 15000 FT      10 DEG. C LEVEL(S) : 10000 FT
   M. TURBULENCE    : MOD OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 1.5BEC2.5 M   SEA TEMPERATURE    : 19 DEG
IV.  FURTHER OUTLOOK: 
     FRESH EASTERLY WINDS, OCCASIONALLY STRONG
     OFFSHORE.  MAINLY CLOUDY.=

    ===================================================================
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/Jan/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     22.7 C
Minimum Air Temperature                     18.9 C
Grass Minimum Temperature                   18.3 C
Relative Humidity                        81 - 94 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January             0.2 mm
Against an average of                        4.0 mm

Other Stations                Min                  Max
King's Park                  18.6 C               23.0 C
Wong Chuk Hang               18.4 C               23.1 C
Ta Kwu Ling                  17.3 C               23.4 C
Lau Fau Shan                 16.9 C               21.5 C
Tai Po                       17.1 C               22.6 C
Sha Tin                      17.7 C               22.6 C
Tuen Mun                     17.4 C               21.9 C
Tseung Kwan O                18.0 C               24.3 C
Sai Kung                     18.3 C               23.1 C
Cheung Chau                  17.6 C               23.4 C
Chek Lap Kok                 16.9 C               19.8 C
Tsing Yi                     18.4 C               22.3 C
Shek Kong                    17.2 C               23.2 C
Tsuen Wan Ho Koon            17.0 C               22.5 C
Tsuen Wan Shing Mun Valley   18.0 C               23.2 C
Hong Kong Park               18.7 C               23.6 C
Shau Kei Wan                 18.2 C               24.1 C
Kowloon City                 18.5 C               24.8 C
Happy Valley                 19.2 C               25.2 C
Wong Tai Sin                 19.0 C               25.0 C
Stanley                      18.1 C               22.5 C
Kwun Tong                    18.6 C               24.7 C
Sham Shui Po                 18.3 C               23.6 C
Kai Tak Runway Park          18.7 C               23.8 C
Yuen Long Park               17.1 C               22.9 C
Tai Mei Tuk               17.5 C               22.8 C

Duration of sunshine (King's Park):              0.5 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.
 

Yesterday's (05 Jan 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                         0.13
Sha Tau Kok                         0.11
Kwun Tong                           0.13
Sai Wan Ho                          0.10
King's Park                         0.15
Tsim Bei Tsui                       0.14
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 Jan
     2003copy right image | Important notices | Privacy policy Last revision date: <06 Jan 2019> 

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