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Bulletin issued at 19:02 HKT 29/May/2019

At 7 p.m. at the Hong Kong Observatory the air temperature was 24 degrees Celsius and the relative humidity 90 per cent.

The air temperatures at other places were:

King's Park 24 degrees;
Wong Chuk Hang 24 degrees;
Ta Kwu Ling 24 degrees;
Lau Fau Shan 24 degrees;
Tai Po 23 degrees;
Sha Tin 24 degrees;
Tuen Mun 25 degrees;
Tseung Kwan O 23 degrees;
Sai Kung 24 degrees;
Cheung Chau 23 degrees;
Chek Lap Kok 25 degrees;
Tsing Yi 25 degrees;
Shek Kong 25 degrees;
Tsuen Wan Ho Koon 23 degrees;
Tsuen Wan Shing Mun Valley 24 degrees;
Hong Kong Park 24 degrees;
Shau Kei Wan 23 degrees;
Kowloon City 24 degrees;
Happy Valley 24 degrees;
Wong Tai Sin 24 degrees;
Stanley 24 degrees;
Kwun Tong 23 degrees;
Sham Shui Po 25 degrees;
Kai Tak Runway Park 24 degrees;
Yuen Long Park 25 degrees;
Tai Mei Tuk 23 degrees.


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


Climatological Information for 29 May

Regional Weather in Hong Kong

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Bulletin updated at 18:45 HKT 29/May/2019

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

A trough of low pressure is bringing thundery showers to the coast of Guangdong and the northern part of the South China Sea.

Weather forecast for tonight and tomorrow

Mainly cloudy with occasional showers and a few thunderstorms. Temperatures will range between 23 and 26 degrees. Moderate to fresh east to southeasterly winds, occasionally strong offshore at first.

Outlook : A few showers in the following couple of days.


(The above forecast period is valid up to 23:59 HKT tomorrow, 30/05/2019; 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 29/May/2019

N0 WARNING.

GENERAL SITUATION AT 282100 UTC:
TROUGH 20N 107E 24N 116E QSTNR. TROUGH 23N 123E 24N 125E E 5KT.

MARINE FORECAST FOR 24 HOURS FROM 290100 UTC:

HONG KONG= E 5-6. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL NE 2 M. TEMP 27-24 C. =
KWANGTUNG= E TO SE 5-6, OCNL 7 IN E. DOWN TO 1000 M IN SCT HEAVY SQUALLY SHOWERS AND TS. SEA UP TO 4 M. SWELL NE 2 M. =
TAIWAN STRAIT= NE 5-6, OCNL 7. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA UP TO 4 M. SWELL NE 2 M. =
BASHI= E TO NE 4-5, 6 AT FIRST. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 2 M, UP TO 3 M AT FIRST. SWELL NE 2 M. =
PRATAS= S TO SE 4-5. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA UP TO 2 M. SWELL NE 2 M. =
BALINTANG= S TO SW 4-5. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 2 M. SWELL NE 2 M. =
SCARBOROUGH= S 4-5. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA UP TO 2 M. =
PARACEL= S TO SE 4-5. DOWN TO 1000 M IN SCT HEAVY SQUALLY SHOWERS AND TS. SEA UP TO 2 M. SWELL NE 2 M. =
TONKIN= S 4-5. DOWN TO 1000 M IN SCT HEAVY SQUALLY SHOWERS AND TS. SEA UP TO 2 M. =
DANANG= S TO SE 4-5. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 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
  • 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 19:30 HKT 29/May/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 7:30 p.m. on 29 May 2019

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

    Weather Situation:
    A trough of low pressure is bringing thundery showers to the south China coastal waters.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East to southeast force 5 to 6, occasionally force 7.
    Scattered squally showers and thunderstorms.
    Moderate to rough seas.

    Nan'ao:
    East force 5 to 6.
    Scattered squally showers and thunderstorms.
    Moderate to rough seas.

    Shanwei:
    East to southeast force 5 to 6.
    Scattered squally showers and thunderstorms.
    Moderate to rough seas.

    South of Hong Kong:
    East to southeast force 5 to 6, occasionally force 7.
    Scattered squally showers and thunderstorms.
    Moderate to rough seas.

    Shangchuan Dao:
    East to southeast force 4 to 5.
    Scattered heavy squally showers and thunderstorms.
    Moderate seas.

    Outlook for the next 48 hours
    East to southeasterly winds of force 5 to 6, becoming southerly winds of force 4 to 5 later. Scattered squally showers and thunderstorms.

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

    Waglan Island Wind east-northeast force 6
      Visibility 10 Kilometres

    Shantou Wind east force 2
      Visibility 25 Kilometres

    Dongsha Wind east-southeast force 2
      Visibility 9 Kilometres

    Huangmaozhou Wind east-southeast force 6

    Macau Wind east force 3
      Visibility 3900 Metres in rain

    Xisha Wind south force 1
      Visibility 30 Kilometres

  • Explanation of Seas or Sea Waves
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  • Visibility Readings in Hong Kong Waters
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    • WEATHER FORECAST FOR LOCAL AVIATION
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    Weather Forecast for Local Aviation

    Bulletin issued at 17:30 HKT 29/MAY/2019
    (Next update at 01:30 HKT 30/MAY/2019)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB. 
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     A TROUGH OF LOW PRESSURE IS BRINGING THUNDERY
     SHOWERS 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:  090/10-15, OCNL 20
                  TEMPO VRB/15G25 IN TS
       OFFSHORE:  090/20-25, OCNL 30                   25-23
   B.   2000 FT:  120/25-30                            21
   C.   5000 FT:  180/10
                  BECMG 190/15-20                      18
   D.  10000 FT:  220/10                               11
   E.  18000 FT:  250/20                               MS1
   F.  24000 FT:  240/15                               MS10
   G.  30000 FT:  260/15                               MS22
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY CLOUDY WITH OCCASIONAL SHOWERS. ISOLATED
      THUNDERSTORMS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT SCT 2500 FT. 
      TEMPO FEW CB 800 FT SCT 1500 FT BKN 4000 FT.
   K. VISIBILITY    : 9 KM. TEMPO 3000 M IN SHOWERS. TEMPO 2000 M IN TS.
   L. 0 DEG. C LEVEL: 16500 FT      10 DEG. C LEVEL(S) : 10400 FT
   M. TURBULENCE    : MOD TO SEV.
   N. SEA STATE     : 2.5-3.5 M     SEA TEMPERATURE    : 26 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH EASTERLY WINDS. MAINLY CLOUDY
     WITH OCCASIONAL SHOWERS AND ISOLATED
     THUNDERSTORMS.=

    ===================================================================
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 29/May/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     27.7 C
Minimum Air Temperature                     23.9 C
Grass Minimum Temperature                   25.2 C
Relative Humidity                        85 - 97 Percent
Rainfall                                    43.9 mm 
Total rainfall since 1st January           662.9 mm
Against an average of                      594.7 mm

Other Stations                Min                  Max
King's Park                  23.6 C               28.2 C
Wong Chuk Hang               23.8 C               27.9 C
Ta Kwu Ling                  23.9 C               27.4 C
Lau Fau Shan                 23.3 C               27.2 C
Tai Po                       23.6 C               26.2 C
Sha Tin                      24.2 C               27.4 C
Tuen Mun                     23.5 C               27.8 C
Tseung Kwan O                24.0 C               26.8 C
Sai Kung                     24.8 C               27.7 C
Cheung Chau                  23.5 C               26.5 C
Chek Lap Kok                 23.5 C               28.7 C
Tsing Yi                     24.0 C               28.0 C
Shek Kong                    23.2 C               28.4 C
Tsuen Wan Ho Koon            23.1 C               26.2 C
Tsuen Wan Shing Mun Valley   23.8 C               27.5 C
Hong Kong Park               23.6 C               26.9 C
Shau Kei Wan                 23.6 C               26.9 C
Kowloon City                 23.6 C               28.9 C
Happy Valley                 24.0 C               29.1 C
Wong Tai Sin                 24.0 C               30.4 C
Stanley                      23.6 C               27.6 C
Kwun Tong                    23.7 C               28.6 C
Sham Shui Po                 23.9 C               29.0 C
Kai Tak Runway Park          24.0 C               27.3 C
Yuen Long Park               23.6 C               28.1 C
Tai Mei Tuk               23.9 C               28.7 C

Duration of sunshine (King's Park):              0.9 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 2.
 

Yesterday's (28 May 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                         0.11
Sha Tau Kok                         0.10
Kwun Tong                           0.13
Sai Wan Ho                          0.09
King's Park                         0.14
Tsim Bei Tsui                       0.13
Cape D'Aguilar                      0.12
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 28 May
     2003copy right image | Important notices | Privacy policy Last revision date: <29 May 2019> 

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