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Bulletin issued at 13:02 HKT 28/Mar/2019

At 1 p.m. at the Hong Kong Observatory the air temperature was 26 degrees Celsius and the relative humidity 78 per cent.
During the past hour the mean UV Index recorded at King's Park was 3. The intensity of UV radiation was moderate.

The air temperatures at other places were:

King's Park 27 degrees;
Wong Chuk Hang 26 degrees;
Ta Kwu Ling 29 degrees;
Lau Fau Shan 26 degrees;
Tai Po 25 degrees;
Sha Tin 28 degrees;
Tuen Mun 26 degrees;
Tseung Kwan O 25 degrees;
Sai Kung 25 degrees;
Cheung Chau 26 degrees;
Chek Lap Kok 26 degrees;
Tsing Yi 26 degrees;
Shek Kong 27 degrees;
Tsuen Wan Ho Koon 25 degrees;
Tsuen Wan Shing Mun Valley 26 degrees;
Hong Kong Park 26 degrees;
Shau Kei Wan 25 degrees;
Kowloon City 27 degrees;
Happy Valley 27 degrees;
Wong Tai Sin 26 degrees;
Stanley 25 degrees;
Kwun Tong 25 degrees;
Sham Shui Po 26 degrees;
Kai Tak Runway Park 25 degrees;
Yuen Long Park 27 degrees;
Tai Mei Tuk 27 degrees.


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


Climatological Information for 28 Mar

Regional Weather in Hong Kong

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Bulletin updated at 12:45 HKT 28/Mar/2019

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

A warm maritime airstream is affecting the coast of Guangdong. Locally, temperatures over the territory generally rose to 25 degrees or above around noon.

Weather forecast for this afternoon and tonight

Warm with sunny periods in the afternoon. Mainly cloudy with coastal mist tonight. Light to moderate southerly winds.

Outlook : Some showers in the next few days. Sunny intervals on Saturday. Slightly cooler early next week.


(The above forecast period is valid up to 23:59 HKT today, 28/03/2019; 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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Weather Information for the Marine Community

Bulletin issued at 09:00 HKT 28/Mar/2019

N0 WARNING.

GENERAL SITUATION AT 272100 UTC:
A SOUTHERLY AIRSTREAM IS GENERALLY AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 280100 UTC:

HONG KONG= S TO SE 3-4. DOWN TO 4000 M IN MIST PATCHES. SWELL E UP TO 2 M. TEMP 27-22 C. =
KWANGTUNG= S TO SE 4-5. DOWN TO 4000 M IN MIST PATCHES. SEA UP TO 2 M. SWELL E UP TO 2 M. =
TAIWAN STRAIT= SW 4-5. DOWN TO 4000 M IN MIST PATCHES. SEA UP TO 2 M. SWELL E UP TO 2 M. =
BASHI= S TO SE 4-5. FINE. SEA UP TO 2 M. SWELL E UP TO 2 M. =
PRATAS= S TO SE 4-5. FINE. SEA UP TO 2 M. SWELL E UP TO 2 M. =
BALINTANG= S TO SE 4-5. FINE. SEA UP TO 2 M. SWELL E UP TO 2 M. =
SCARBOROUGH= S TO SE 4. FINE. =
PARACEL= S TO SE 4. DOWN TO 500 M IN FOG PATCHES. SWELL E UP TO 2 M. =
TONKIN= S TO SE 4. ISOL SHOWERS AND TS. =
DANANG= S TO SE 4. ISOL SHOWERS AND TS. =
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

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    Bulletin issued at 12:30 HKT 28/Mar/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 12:30 p.m. on 28 March 2019

    Weather Situation:
    A southeasterly airstream is affecting the coastal waters of Guangdong.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    South force 3 to 4.
    Mist patches. A few showers later.
    Slight to moderate seas.

    Nan'ao, Shanwei, South of Hong Kong and Shangchuan Dao:
    South to southeast force 4 to 5.
    Moderate seas.

    Outlook for the next 48 hours
    South to southeasterly winds of force 4 to 5, becoming east to northeasterly winds of force 5 to 6 later. Isolated showers and thunderstorms.

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

    Waglan Island Wind variable force 1
      Visibility 14 Kilometres

    Shantou Wind southwest force 2
      Visibility 19 Kilometres

    Dongsha Wind south force 1
      Visibility 10 Kilometres

    Huangmaozhou Wind southeast force 3

    Macau Wind east-southeast force 1
      Visibility 8 Kilometres

    Xisha Wind southeast force 2
      Visibility 29 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 12:30 HKT 28/MAR/2019
    (Next update at 17:30 HKT 28/MAR/2019)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL
II.  SYNOPSIS OF THE WEATHER SITUATION :
     A WARM MARITIME AIRSTREAM IS AFFECTING THE COAST
     OF GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1300 TO 2300 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  160/5-10                             28-24
   B.   2000 FT:  180/10-15                            20
   C.   5000 FT:  230/15                               13
   D.  10000 FT:  250/15                               11
   E.  18000 FT:  250/30                               MS4
   F.  24000 FT:  250/50                               MS16
   G.  30000 FT:  240/60                               MS28
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      SUNNY PERIODS. MAINLY CLOUDY TONIGHT. LOCALIZED
      MIST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT  SCT 4000 FT.
   K. VISIBILITY    : 7 KM. TEMPO 4000 M IN MIST.
   L. 0 DEG. C LEVEL: 16000 FT      10 DEG. C LEVEL(S) : 10200 FT
   M. TURBULENCE    : NIL
   N. SEA STATE     : 0.5-1.5 M     SEA TEMPERATURE    : 22 DEG
IV.  FURTHER OUTLOOK: 
     LIGHT TO MODERATE SOUTHERLY WINDS. MAINLY
     CLOUDY. LOCALIZED MIST.=

    ===================================================================
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 28/Mar/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     25.3 C
Minimum Air Temperature                     20.3 C
Grass Minimum Temperature                   20.3 C
Relative Humidity                        73 - 87 Percent
Rainfall                                      Trace 
Total rainfall since 1st January           245.3 mm
Against an average of                      147.0 mm

Other Stations                Min                  Max
King's Park                  19.8 C               25.1 C
Wong Chuk Hang               20.2 C               26.0 C
Ta Kwu Ling                  20.1 C               26.5 C
Lau Fau Shan                 18.8 C               27.6 C
Tai Po                       20.0 C               23.4 C
Sha Tin                      20.4 C               25.5 C
Tuen Mun                     20.8 C               25.4 C
Tseung Kwan O                19.5 C               24.5 C
Sai Kung                     20.4 C               24.5 C
Cheung Chau                  20.1 C               25.5 C
Chek Lap Kok                 21.1 C               27.2 C
Tsing Yi                     20.9 C               27.0 C
Shek Kong                    20.4 C               27.7 C
Tsuen Wan Ho Koon            19.5 C               25.6 C
Tsuen Wan Shing Mun Valley   20.4 C               26.0 C
Hong Kong Park               20.3 C               25.4 C
Shau Kei Wan                 19.5 C               23.7 C
Kowloon City                 19.8 C               26.1 C
Happy Valley                 20.4 C               26.9 C
Wong Tai Sin                 20.3 C               26.0 C
Stanley                      19.9 C               24.0 C
Kwun Tong                    19.6 C               24.8 C
Sham Shui Po                 20.7 C               26.2 C
Kai Tak Runway Park          20.2 C               24.1 C
Yuen Long Park               20.1 C               28.0 C
Tai Mei Tuk               19.6 C               26.5 C

Duration of sunshine (King's Park):              4.8 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 5.
 

Yesterday's (27 Mar 2019) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.09 to
0.14 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                           0.12
Sai Wan Ho                          0.09
King's Park                         0.14
Tsim Bei Tsui                       0.13
Cape D'Aguilar                      0.13
Chek Lap Kok                        0.14

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 27 Mar
     2003copy right image | Important notices | Privacy policy Last revision date: <28 Mar 2019> 

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