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Bulletin issued at 09:02 HKT 27/Aug/2019

At 9 a.m. at the Hong Kong Observatory the air temperature was 28 degrees Celsius and the relative humidity 91 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 28 degrees;
Wong Chuk Hang 29 degrees;
Ta Kwu Ling 29 degrees;
Lau Fau Shan 28 degrees;
Tai Po 27 degrees;
Sha Tin 29 degrees;
Tuen Mun 29 degrees;
Tseung Kwan O 28 degrees;
Sai Kung 29 degrees;
Chek Lap Kok 31 degrees;
Tsing Yi 28 degrees;
Shek Kong 28 degrees;
Tsuen Wan Ho Koon 26 degrees;
Tsuen Wan Shing Mun Valley 27 degrees;
Shau Kei Wan 29 degrees;
Kowloon City 28 degrees;
Happy Valley 30 degrees;
Wong Tai Sin 28 degrees;
Stanley 29 degrees;
Kwun Tong 29 degrees;
Sham Shui Po 30 degrees;
Kai Tak Runway Park 29 degrees;
Yuen Long Park 28 degrees;
Tai Mei Tuk 28 degrees.

Between 7:45 and 8:45 a.m., the rainfall recorded in various regions were:

Tsuen Wan 0 to 11 mm;
Tai Po 0 to 10 mm;
Wong Tai Sin 3 to 7 mm;
Sha Tin 0 to 5 mm;
Kowloon City 1 to 4 mm;
Sai Kung 0 to 3 mm;
Kwun Tong 0 to 3 mm;
Southern District 0 to 2 mm;
Eastern District 0 to 2 mm;
Yuen Long 0 to 1 mm;
Yau Tsim Mong 0 to 1 mm;
Sham Shui Po 0 to 1 mm;
Kwai Tsing 0 to 1 mm;
Wan Chai 0 to 1 mm.

Between midnight and 9 a.m. the minimum temperature was 26.9 degrees Celsius at the Hong Kong Observatory.


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


Climatological Information for 27 Aug

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Bulletin updated at 08:45 HKT 27/Aug/2019

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

A southerly airstream is bringing showers to the coastal areas of Guangdong. Locally, around 5 millimetres of rainfall were recorded over parts of New Territories East, Hong Kong Island and Lantau Island this morning. Besides, the area of low pressure to the east of Luzon is intensifying gradually. A tropical cyclone appears to be forming.

Weather forecast for today

Sunny periods and a few showers. Hot with a maximum temperature of about 32 degrees. Light to moderate southeasterly winds.

Outlook : Mainly fine and very hot in the next couple of days. The weather will become unsettled towards the weekend.


(The above forecast period is valid up to 23:59 HKT today, 27/08/2019; 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 09:20 HKT 27/Aug/2019

N0 WARNING.

GENERAL SITUATION AT 262100 UTC:
A SOUTHEASTERLY AIRSTREAM IS AFFECTING THE FORECAST AREAS. LOW 1002 HPA 14N 128E WNW 15KT INTSF.

MARINE FORECAST FOR 24 HOURS FROM 270120 UTC:

HONG KONG= SE 4-5, NE 4-5 LATER. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 2 M. SWELL S UP TO 2 M. TEMP 32-28 C. =
KWANGTUNG= S TO SE 4-5, NE 4-5 LATER. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 2 M. SWELL S UP TO 2 M. =
TAIWAN STRAIT= SE 4-5. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS LATER. SEA UP TO 2 M. SWELL S UP TO 2 M. =
BASHI= E TO SE 5-6, BEC NE UP TO 7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS LATER. SEA 2-3 M, BEC 4 M. SWELL E 2 M. =
PRATAS= SE 4-5, NE 5-6 LATER. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2 M, 3 M LATER. SWELL S UP TO 2 M. =
BALINTANG= E TO SE 5-6, BEC NE UP TO 7. DOWN TO 1000 M IN SCT HEAVY SQUALLY SHOWERS AND TS. SEA 2-3 M, BEC 4 M. SWELL E 2 M. =
SCARBOROUGH= W TO NW 4-5, BEC NE UP TO 7. DOWN TO 1000 M IN SCT HEAVY SQUALLY SHOWERS AND TS. SEA 2 M, BEC 3-4 M. SWELL S 2 M. =
PARACEL= S TO SE 4-5. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 2 M. SWELL S 2 M. =
TONKIN= S TO SE 4-5, OCNL 6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 3 M. SWELL S UP TO 2 M. =
DANANG= S TO SE 4-5. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 2 M. SWELL S 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.


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    • SOUTH CHINA COASTAL WATERS
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    South China Coastal Waters

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    Bulletin issued at 09:30 HKT 27/Aug/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 9:30 a.m. on 27 August 2019

    Warnings:
    Strong winds in Nan'ao and Shanwei.

    Weather Situation:
    A southeasterly airstream is affecting the south China coastal waters.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    Southeast force 4 to 5, becoming northeast force 4 to 5 later.
    Isolated squally showers and thunderstorms.
    Moderate seas.

    Nan'ao and Shanwei:
    Southeast force 4 to 5, becoming northeast force 5 to 6 later.
    Isolated squally showers and thunderstorms.
    Moderate seas, becoming rough later.

    South of Hong Kong:
    Southeast force 4 to 5, becoming northeast force 4 to 5 later.
    Isolated squally showers and thunderstorms.
    Moderate seas.

    Shangchuan Dao:
    South to southeast force 4 to 5.
    Isolated squally showers and thunderstorms.
    Moderate seas.

    Outlook for the next 48 hours
    Northeasterly winds of force 6 to 7. Isolated squally showers and thunderstorms.

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

    Waglan Island Wind southeast force 3
      Visibility 36 Kilometres

    Shantou Wind east-southeast force 2
      Visibility 30 Kilometres

    Dongsha Wind east force 2
      Visibility 10 Kilometres

    Huangmaozhou Wind southeast force 4

    Macau Wind southeast force 1
      Visibility 14 Kilometres

    Xisha Wind south-southeast force 1
      Visibility 30 Kilometres

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    • WEATHER FORECAST FOR LOCAL AVIATION
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    Weather Forecast for Local Aviation

    Bulletin issued at 09:30 HKT 27/AUG/2019
    (Next update at 12:30 HKT 27/AUG/2019)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     A SOUTHERLY AIRSTREAM IS AFFECTING THE SOUTH
     CHINA COASTAL AREAS.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  130/10
       OFFSHORE:  140/10-15                            28-33
   B.   2000 FT:  140/15-20                            24
   C.   5000 FT:  140/15                               19
   D.  10000 FT:  180/15                               13
   E.  18000 FT:  100/25                               0
   F.  24000 FT:  100/30                               MS11
   G.  30000 FT:  100/25                               MS24
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      SUNNY PERIODS WITH A FEW SHOWERS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT SCT 3500 FT
   K. VISIBILITY    : 9 KM. TEMPO 4000 M IN SHOWERS.
   L. 0 DEG. C LEVEL: 18000 FT      10 DEG. C LEVEL(S) : 11800 FT
   M. TURBULENCE    : MOD OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 26 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE SOUTH TO SOUTHEASTERLY WINDS. MAINLY
     FINE. LOCALISED HAZE.=

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

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

Hong Kong Observatory
Maximum Air Temperature                     28.7 C
Minimum Air Temperature                     22.9 C
Grass Minimum Temperature                   22.1 C
Relative Humidity                        89 - 97 Percent
Rainfall                                   178.3 mm 
Total rainfall since 1st January          1973.3 mm
Against an average of                     1857.7 mm

Other Stations                Min                  Max
King's Park                  22.6 C               28.3 C
Wong Chuk Hang               23.0 C               29.1 C
Ta Kwu Ling                  22.9 C               28.7 C
Lau Fau Shan                 22.4 C               28.3 C
Tai Po                       22.2 C               26.7 C
Sha Tin                      23.3 C               28.1 C
Tuen Mun                     23.1 C               28.5 C
Tseung Kwan O                22.7 C               27.5 C
Sai Kung                     23.4 C               28.5 C
Chek Lap Kok                 23.7 C               31.5 C
Tsing Yi                     22.7 C               29.3 C
Tsuen Wan Ho Koon            22.0 C               27.1 C
Tsuen Wan Shing Mun Valley   22.6 C               28.1 C
Hong Kong Park               22.6 C               28.8 C
Shau Kei Wan                 22.4 C               28.0 C
Kowloon City                 22.1 C               28.9 C
Happy Valley                 23.1 C               29.2 C
Wong Tai Sin                 22.5 C               29.5 C
Stanley                      23.0 C               30.3 C
Kwun Tong                    22.6 C               28.7 C
Sham Shui Po                 22.4 C               29.5 C
Kai Tak Runway Park          22.6 C               28.3 C
Yuen Long Park               23.0 C               29.9 C
Tai Mei Tuk               22.4 C               28.2 C

Duration of sunshine (King's Park):              1.4 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 7.
 

Yesterday's (26 Aug 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                         0.14
Tai Mei Tuk                         0.12
Sha Tau Kok                         0.11
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                        0.14

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

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