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Bulletin issued at 18:02 HKT 27/Jan/2019

At 6 p.m. at the Hong Kong Observatory the air temperature was 17 degrees Celsius and the relative humidity 69 per cent.
During the past hour the mean UV Index recorded at King's Park was 0.1. The intensity of UV radiation was low.

Please be reminded that:

The Fire Danger Warning is Yellow and the fire risk is high.

The air temperatures at other places were:

King's Park 16 degrees;
Wong Chuk Hang 16 degrees;
Ta Kwu Ling 17 degrees;
Lau Fau Shan 17 degrees;
Tai Po 17 degrees;
Sha Tin 16 degrees;
Tuen Mun 17 degrees;
Tseung Kwan O 16 degrees;
Sai Kung 16 degrees;
Cheung Chau 16 degrees;
Chek Lap Kok 18 degrees;
Tsing Yi 17 degrees;
Shek Kong 18 degrees;
Tsuen Wan Ho Koon 17 degrees;
Tsuen Wan Shing Mun Valley 18 degrees;
Hong Kong Park 17 degrees;
Shau Kei Wan 16 degrees;
Kowloon City 17 degrees;
Happy Valley 16 degrees;
Wong Tai Sin 17 degrees;
Stanley 16 degrees;
Kwun Tong 15 degrees;
Sham Shui Po 17 degrees;
Kai Tak Runway Park 17 degrees;
Yuen Long Park 17 degrees;
Tai Mei Tuk 16 degrees.


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


Climatological Information for 27 Jan

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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Automatic Regional Weather Forecast in Hong Kong & Pearl River Delta Region

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Bulletin updated at 17:45 HKT 27/Jan/2019

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

The northeast monsoon is bringing generally fine weather to the south China coastal areas. Locally, the relative humidity over most parts of the New Territories stayed below 60 per cent in the afternoon.

Weather forecast for tonight and tomorrow

Cloudy periods overnight. Cool tomorrow morning with a minimum temperature of about 16 degrees in the urban areas, and a couple of degrees lower in the New Territories. Mainly fine during the day with a maximum temperature of around 20 degrees. Moderate easterly winds, occasionally fresh offshore at first.

Outlook : Mainly fine on Tuesday. Cloudier and milder midweek this week.


(The above forecast period is valid up to 23:59 HKT tomorrow, 28/01/2019; 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 27/Jan/2019

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

GENERAL SITUATION AT 262100 UTC:
AN INTENSE NORTHEAST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 270100 UTC:

HONG KONG= E 6-7. FINE. SEA 3-4 M. SWELL E 2 M. TEMP 18-16 C. =
KWANGTUNG= E TO NE 6-7, 8 IN E. FINE. SEA 3-6 M. SWELL E TO NE 2-3 M. =
TAIWAN STRAIT= NE 7-8. FINE. SEA 4-6 M. SWELL NE 3 M. =
BASHI= E TO NE 7-8. FINE. SEA 4-6 M. SWELL NE 3 M. =
PRATAS= E TO NE 7-8. FINE. SEA 4-6 M. SWELL NE 3 M. =
BALINTANG= E TO NE 7-8. FINE. SEA 4-6 M. SWELL NE 3 M. =
SCARBOROUGH= E TO NE 7-8. RAIN PATCHES. SEA 4-6 M. SWELL NE 3 M. =
PARACEL= E TO NE 6-7. RAIN PATCHES. SEA 3-4 M. SWELL NE 2-3 M. =
TONKIN= E TO NE 4-5, OCNL 6. DOWN TO 4000 M IN MORNING MIST PATCHES. SEA UP TO 3 M. SWELL NE 2 M. =
DANANG= E TO NE 5-6. RAIN PATCHES. SEA 2-3 M. SWELL NE 2-3 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 27/Jan/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 4:30 p.m. on 27 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:
    The northeast monsoon is affecting the south China coastal waters.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East force 5 to 6.
    Moderate to rough seas.

    Nan'ao:
    East to northeast force 6 to 7, force 8 at first.
    Rough seas, very rough at first.

    Shanwei and South of Hong Kong:
    East force 6 to 7.
    Rough seas.

    Shangchuan Dao:
    East force 5 to 6, occasionally force 7.
    Moderate to rough seas.

    Outlook for the next 48 hours
    Easterly winds of force 5 to 6, occasionally force 7.

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

    Waglan Island Wind east force 4
      Visibility 12 Kilometres

    Shantou Wind east force 2
      Visibility 23 Kilometres

    Huangmaozhou Wind east force 6

    Macau Wind north-northeast force 1
      Visibility 7 Kilometres

    Xisha Wind east-northeast force 3
      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 17:30 HKT 27/JAN/2019
    (Next update at 01:30 HKT 28/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 BRINGING GENERALLY FINE
     WEATHER TO 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:  080/10
       OFFSHORE:  080/20-25                            18-15
   B.   2000 FT:  100/15-20                            13
   C.   5000 FT:  160/10                               10
   D.  10000 FT:  290/20                               8
   E.  18000 FT:  280/40                               MS4
   F.  24000 FT:  270/40                               MS15
   G.  30000 FT:  270/45                               MS28
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      3100 - 3700 FT.
   I. WEATHER       : 
      CLOUDY PERIODS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT  SCT 8000 FT.
   K. VISIBILITY    : 7 KM.
   L. 0 DEG. C LEVEL: 16000 FT      10 DEG. C LEVEL(S) : 3200, 5000 FT
   M. TURBULENCE    : MOD TO SEV OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 2.0-3.0 M     SEA TEMPERATURE    : 19 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EASTERLY WINDS, FRESH AT TIMES.  MAINLY
     FINE.=

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

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

Hong Kong Observatory
Maximum Air Temperature                     21.2 C
Minimum Air Temperature                     16.7 C
Grass Minimum Temperature                   13.2 C
Relative Humidity                        67 - 84 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January             4.7 mm
Against an average of                       21.3 mm

Other Stations                Min                  Max
King's Park                  15.6 C               21.7 C
Wong Chuk Hang               13.3 C               21.8 C
Ta Kwu Ling                  10.0 C               24.2 C
Lau Fau Shan                 14.3 C               21.3 C
Tai Po                       14.0 C               20.8 C
Sha Tin                      13.0 C               22.7 C
Tuen Mun                     15.4 C               23.3 C
Tseung Kwan O                13.0 C               21.8 C
Sai Kung                     13.8 C               19.8 C
Cheung Chau                  14.3 C               22.2 C
Chek Lap Kok                 16.6 C               22.3 C
Tsing Yi                     15.1 C               22.3 C
Shek Kong                    12.2 C               24.2 C
Tsuen Wan Ho Koon            14.1 C               23.3 C
Tsuen Wan Shing Mun Valley   14.1 C               24.4 C
Hong Kong Park               15.7 C               21.6 C
Shau Kei Wan                 15.4 C               19.9 C
Kowloon City                 15.2 C               22.7 C
Happy Valley                 14.2 C               22.3 C
Wong Tai Sin                 15.7 C               22.7 C
Stanley                      15.4 C               20.1 C
Kwun Tong                    15.6 C               22.0 C
Sham Shui Po                 16.0 C               22.9 C
Kai Tak Runway Park          16.5 C               20.2 C
Yuen Long Park               13.5 C               24.7 C
Tai Mei Tuk               15.1 C               24.0 C

Duration of sunshine (King's Park):              8.6 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 (26 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                         0.12
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 26 Jan
     2003copy right image | Important notices | Privacy policy Last revision date: <27 Jan 2019> 

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