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Bulletin issued at 18:02 HKT 03/Jan/2019

At 6 p.m. at the Hong Kong Observatory the air temperature was 17 degrees Celsius and the relative humidity 85 per cent.
During the past hour the mean UV Index recorded at King's Park was 0.0. The intensity of UV radiation was low.

The air temperatures at other places were:

King's Park 17 degrees;
Wong Chuk Hang 17 degrees;
Ta Kwu Ling 13 degrees;
Lau Fau Shan 14 degrees;
Tai Po 14 degrees;
Sha Tin 15 degrees;
Tuen Mun 15 degrees;
Tseung Kwan O 16 degrees;
Sai Kung 16 degrees;
Cheung Chau 15 degrees;
Chek Lap Kok 15 degrees;
Tsing Yi 17 degrees;
Shek Kong 14 degrees;
Tsuen Wan Ho Koon 15 degrees;
Tsuen Wan Shing Mun Valley 17 degrees;
Hong Kong Park 17 degrees;
Shau Kei Wan 15 degrees;
Kowloon City 16 degrees;
Happy Valley 17 degrees;
Wong Tai Sin 17 degrees;
Stanley 16 degrees;
Kwun Tong 16 degrees;
Sham Shui Po 16 degrees;
Kai Tak Runway Park 17 degrees;
Yuen Long Park 14 degrees;
Tai Mei Tuk 14 degrees.


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


Climatological Information for 3 Jan

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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Bulletin updated at 17:45 HKT 03/Jan/2019

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

The winter monsoon now affecting Guangdong will moderate gradually in the next couple of days. Meanwhile, a cloud band is covering southern China.

Weather forecast for tonight and tomorrow

Mainly cloudy. Cool with one or two light rain patches overnight. The minimum temperature will be about 17 degrees in the urban areas, and a couple of degrees lower in the New Territories. The maximum temperature will be around 20 degrees tomorrow. Moderate east to northeasterly winds, fresh overnight.

Outlook : Mild on Saturday. Slightly cooler on Sunday morning. Sunny intervals early next week.


(The above forecast period is valid up to 23:59 HKT tomorrow, 04/01/2019; 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 03/Jan/2019

GALE WARNING AREAS: KWANGTUNG, TAIWAN STRAIT, BASHI, PRATAS, BALINTANG AND PARACEL.

GENERAL SITUATION AT 022100 UTC:
THE NORTHEAST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 030100 UTC:

HONG KONG= N TO NE 5-6, BEC E TO NE 6-7. RAIN PATCHES. SEA 2-3 M, BEC 3-4 M. SWELL E TO NE 2 M. TEMP 18-16 C. =
KWANGTUNG= E TO NE 6-7, OCNL 8. RAIN PATCHES. SEA UP TO 6 M. SWELL E TO NE 2-3 M. =
TAIWAN STRAIT= NE 6-7, OCNL 8. RAIN PATCHES. SEA UP TO 6 M. SWELL E TO NE 3-4 M. =
BASHI= E 6-7, OCNL 8. LGT RAIN PATCHES. SEA UP TO 6 M. SWELL E TO NE 3-4 M. =
PRATAS= E TO NE 6-7, OCNL 8. LGT RAIN PATCHES. SEA UP TO 6 M. SWELL E TO NE 3-4 M. =
BALINTANG= E 6-7, OCNL 8. LGT RAIN PATCHES. SEA UP TO 6 M. SWELL E TO NE 3-4 M. =
SCARBOROUGH= E TO NE 5-6, OCNL 7. LGT RAIN PATCHES. SEA UP TO 4 M. SWELL E TO NE 3-4 M. =
PARACEL= E TO NE 6-7, OCNL 8. RAIN PATCHES. SEA UP TO 6 M. SWELL NE 3-4 M. =
TONKIN= N TO NE 5-6. RAIN PATCHES. SEA 2-3 M. SWELL NE 2-3 M. =
DANANG= N TO NE 6-7, E 5-6 LATER. RAIN PATCHES. SEA 3-4 M, 2-3 M LATER. SWELL NE 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

    Current Weather | Local Weather Forecast | Regional Temperature Forecast in HK
    9-day Weather Forecast | UV Index Forecast | Weather Information for Fishermen

    Bulletin issued at 16:30 HKT 03/Jan/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 4:30 p.m. on 03 January 2019

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

    Weather Situation:
    The northeast monsoon is affecting the south China coastal waters.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East to northeast force 5 to 6, occasionally force 7.
    A few light rain patches.
    Moderate to rough seas.

    Nan'ao and Shanwei:
    East to northeast force 6 to 7, occasionally force 8.
    Rough to very rough seas.

    South of Hong Kong and Shangchuan Dao:
    East to northeast force 6 to 7.
    Rough seas.

    Outlook for the next 48 hours
    East to northeasterly winds of force 5 to 6, becoming northerly winds of force 5 to 6 later.

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

    Waglan Island Wind north-northeast force 4

    Shantou Wind east-northeast force 2
      Visibility 10 Kilometres in rain

    Dongsha Wind northeast force 4
      Visibility 10 Kilometres

    Huangmaozhou Wind northeast force 4

    Macau Wind north-northeast force 3
      Visibility 9 Kilometres

    Xisha Wind east-northeast force 2
      Visibility 17 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/JAN/2019
    (Next update at 01:30 HKT 04/JAN/2019)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE NORTHEAST MONSOON IS AFFECTING THE SOUTH
     CHINA COASTAL AREAS.  MEANWHILE, A CLOUD BAND IS
     COVERING SOUTHERN CHINA.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  050/10
       OFFSHORE:  070/20-25                            17-14
   B.   2000 FT:  100/20-25, OCNL 30                   14
   C.   5000 FT:  160/20                               14
   D.  10000 FT:  200/15                               7
   E.  18000 FT:  220/30                               MS4
   F.  24000 FT:  230/30                               MS15
   G.  30000 FT:  230/40                               MS28
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      2000 - 3300 FT.
   I. WEATHER       : 
      MAINLY CLOUDY WITH A FEW RAIN AND MIST PATCHES.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1000 FT  SCT 2500 FT  BKN 7000 FT.
   K. VISIBILITY    : 7 KM.  TEMPO 4000 M IN RAIN/MIST.
   L. 0 DEG. C LEVEL: 14500 FT      10 DEG. C LEVEL(S) : 7800 FT
   M. TURBULENCE    : MOD TO SEV OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 2.0-3.0 M     SEA TEMPERATURE    : 17 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH EAST TO NORTHEASTERLY WINDS.
     MAINLY CLOUDY.  A FEW RAIN AND MIST PATCHES AT
     FIRST.=

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

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

Hong Kong Observatory
Maximum Air Temperature                     16.4 C
Minimum Air Temperature                     13.5 C
Grass Minimum Temperature                   13.2 C
Relative Humidity                        63 - 75 Percent
Rainfall                                      Trace 
Total rainfall since 1st January              Trace
Against an average of                        0.3 mm

Other Stations                Min                  Max
King's Park                  12.7 C               16.0 C
Wong Chuk Hang               13.4 C               17.1 C
Ta Kwu Ling                  10.9 C               15.8 C
Lau Fau Shan                 10.7 C               14.3 C
Tai Po                       10.9 C               15.0 C
Sha Tin                      11.8 C               15.7 C
Tuen Mun                     11.5 C               14.8 C
Tseung Kwan O                12.9 C               16.6 C
Sai Kung                     12.7 C               15.8 C
Cheung Chau                  12.2 C               15.6 C
Chek Lap Kok                 11.8 C               15.5 C
Tsing Yi                     13.2 C               17.1 C
Shek Kong                    11.2 C               16.8 C
Tsuen Wan Ho Koon            10.3 C               15.1 C
Tsuen Wan Shing Mun Valley   12.5 C               16.6 C
Hong Kong Park               11.4 C               16.8 C
Shau Kei Wan                 13.5 C               16.3 C
Kowloon City                 12.1 C               15.5 C
Happy Valley                 13.9 C               17.4 C
Wong Tai Sin                 12.6 C               16.0 C
Stanley                      14.2 C               17.0 C
Kwun Tong                    12.8 C               17.0 C
Sham Shui Po                 12.7 C               16.9 C
Kai Tak Runway Park          13.2 C               16.6 C
Yuen Long Park               10.8 C               15.4 C
Tai Mei Tuk               12.0 C               17.0 C

Duration of sunshine (King's Park):              0.1 H
The mean UV index recorded at King's Park yesterday was 1,
the UV intensity was Low.
The maximum UV index for yesterday was 4.
 

Yesterday's (02 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                               0.10
Yuen Ng Fan                         0.12
Tai Mei Tuk                         0.12
Sha Tau Kok                         0.10
Kwun Tong                           0.13
Sai Wan Ho                          0.10
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 Jan
     2003copy right image | Important notices | Privacy policy Last revision date: <03 Jan 2019> 

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