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Bulletin issued at 17:30 HKT 16/Aug/2019

At 5 p.m. at the Hong Kong Observatory the air temperature was 30 degrees Celsius and the relative humidity 78 per cent.
During the past hour the mean UV Index recorded at King's Park was 0.6. The intensity of UV radiation was low.

The air temperatures at other places were:

King's Park 30 degrees;
Wong Chuk Hang 30 degrees;
Ta Kwu Ling 29 degrees;
Lau Fau Shan 29 degrees;
Tai Po 27 degrees;
Sha Tin 28 degrees;
Tuen Mun 27 degrees;
Tseung Kwan O 27 degrees;
Sai Kung 28 degrees;
Cheung Chau 30 degrees;
Chek Lap Kok 32 degrees;
Tsing Yi 27 degrees;
Shek Kong 29 degrees;
Tsuen Wan Ho Koon 27 degrees;
Tsuen Wan Shing Mun Valley 27 degrees;
Hong Kong Park 29 degrees;
Shau Kei Wan 30 degrees;
Kowloon City 28 degrees;
Happy Valley 31 degrees;
Wong Tai Sin 28 degrees;
Stanley 30 degrees;
Kwun Tong 28 degrees;
Sham Shui Po 27 degrees;
Kai Tak Runway Park 29 degrees;
Yuen Long Park 28 degrees;
Tai Mei Tuk 27 degrees.

Between 3:45 and 4:45 p.m., lightning was detected over all regions. The rainfall recorded in various regions were:

Sha Tin 1 to 45 mm;
Tai Po 0 to 35 mm;
Sai Kung 0 to 28 mm;
Kwai Tsing 0 to 12 mm;
Kwun Tong 0 to 10 mm;
Sham Shui Po 2 to 9 mm;
Wong Tai Sin 2 to 7 mm;
Tsuen Wan 1 to 5 mm;
Kowloon City 0 to 4 mm;
Tuen Mun 0 to 3 mm;
Yau Tsim Mong 0 to 2 mm;
North District 0 to 1 mm.


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


Climatological Information for 16 Aug

Regional Weather in Hong Kong

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Bulletin updated at 16:45 HKT 16/Aug/2019

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

A southwesterly airstream is bringing thundery showers to the coast of Guangdong. Locally, around 10 millimetres of rainfall were recorded over many places in the afternoon, and rainfall even exceeded 50 millimetres over Sha Tin.

Weather forecast for tonight and tomorrow

Mainly cloudy with showers and squally thunderstorms. Showers will be heavier at times over some areas at first. Temperatures will range between 27 and 31 degrees. Moderate southwesterly winds.

Outlook : Showers and squally thunderstorms in the following couple of days. Showers will be heavy at times.


(The above forecast period is valid up to 23:59 HKT tomorrow, 17/08/2019; 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 09:00 HKT 16/Aug/2019

GALE WARNING AREAS: BASHI AND BALINTANG.

GENERAL SITUATION AT 152100 UTC:
A SOUTHWESTERLY AIRSTREAM IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 160100 UTC:

HONG KONG= SW 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. SWELL SW 2 M. TEMP 28-33 C. =
KWANGTUNG= SW 5-6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL SW 2 M. =
TAIWAN STRAIT= SW 6-7. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL SW 2-3 M. =
BASHI= SW 7-8. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 4-6 M. SWELL SW 2-3 M. =
PRATAS= SW 5-6, OCNL 7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 4 M. SWELL SW 2 M. =
BALINTANG= SW 7-8. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 4-6 M. SWELL SW 2-3 M. =
SCARBOROUGH= SW 6-7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL SW 2 M. =
PARACEL= SW 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. SWELL SW 2 M. =
TONKIN= S TO SW 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. =
DANANG= S TO SW 4-5. ISOL 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
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    • 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 16/Aug/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 4:30 p.m. on 16 August 2019

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

    Weather Situation:
    A southwesterly airstream is bringing thundery showers to the coastal waters of Guangdong.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    Southwest force 4 to 5.
    Isolated showers and squally thunderstorms. Showers will be heavy at times at first.
    Moderate seas.

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

    South of Hong Kong:
    Southwest force 4 to 5, occasionally force 6.
    Isolated showers and squally thunderstorms.
    Moderate to rough seas.

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

    Outlook for the next 48 hours
    Southwesterly winds of force 4 to 5, occasionally force 6. Scattered showers and squally thunderstorms.

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

    Waglan Island Wind southwest force 5
      Visibility 33 Kilometres

    Shantou Wind west force 2
      Visibility 26 Kilometres

    Dongsha Wind southwest force 4
      Visibility 10 Kilometres

    Huangmaozhou Wind southwest force 4

    Macau Wind south force 2
      Visibility 20 Kilometres

    Xisha Wind south-southwest force 4
      Visibility 10 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 16/AUG/2019
    (Next update at 01:30 HKT 17/AUG/2019)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     A SOUTHWESTERLY AIRSTREAM IS BRINGING THUNDERY
     SHOWERS TO THE COAST OF GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  220/10-15
                  TEMPO VRB/20G30 IN TS
       OFFSHORE:  220/15, OCNL 20                      31-27
   B.   2000 FT:  230/15                               25
   C.   5000 FT:  250/15                               20
   D.  10000 FT:  260/20                               12
   E.  18000 FT:  270/20                               MS2
   F.  24000 FT:  250/15                               MS11
   G.  30000 FT:  230/10                               MS23
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY CLOUDY WITH SHOWERS AND SQUALLY
      THUNDERSTORMS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT  SCT 3000 FT
      TEMPO FEW CB 1000 FT SCT 2000 FT BKN 4000 FT
   K. VISIBILITY    : 9 KM. TEMPO 4000 M IN SHOWERS. TEMPO 2000 M IN TS.
   L. 0 DEG. C LEVEL: 17000 FT      10 DEG. C LEVEL(S) : 11400 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS. MOD OFFSHORE AND  NEAR HILLS.
   N. SEA STATE     : 1.5-2.5 M     SEA TEMPERATURE    : 28 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE SOUTHWESTERLY WINDS. MAINLY CLOUDY WITH
     SHOWERS AND SQUALLY 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.

    The latest significant weather information
    issued by the Hong Kong Observatory at 17:20 HKT on 16 Aug 19

    VHHK SIGMET 3 VALID 160920/161320 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N1805 E11246 - N1930 E11130 - N2130 E11130 - N2400 E11730 - N2107 E11730 - N2028 E11323 - N1805 E11246 TOP FL450 MOV ENE 10KT NC=

    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 16/Aug/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     32.4 C
Minimum Air Temperature                     26.5 C
Grass Minimum Temperature                   24.9 C
Relative Humidity                        62 - 91 Percent
Rainfall                                     5.6 mm 
Total rainfall since 1st January          1643.5 mm
Against an average of                     1679.4 mm

Other Stations                Min                  Max
King's Park                  26.4 C               32.9 C
Wong Chuk Hang               25.3 C               31.5 C
Ta Kwu Ling                  26.7 C               34.6 C
Lau Fau Shan                 28.0 C               33.0 C
Tai Po                       28.0 C               34.0 C
Sha Tin                      29.2 C               33.5 C
Tuen Mun                     28.8 C               32.8 C
Tseung Kwan O                26.1 C               34.1 C
Sai Kung                     28.1 C               35.1 C
Cheung Chau                  26.4 C               32.3 C
Chek Lap Kok                 27.9 C               34.2 C
Tsing Yi                     28.0 C               33.0 C
Shek Kong                    27.4 C               33.2 C
Tsuen Wan Ho Koon            26.9 C               31.5 C
Tsuen Wan Shing Mun Valley   28.4 C               32.8 C
Hong Kong Park               25.0 C               32.7 C
Shau Kei Wan                 25.4 C               33.1 C
Kowloon City                 27.9 C               33.8 C
Happy Valley                 26.5 C               34.5 C
Wong Tai Sin                 28.5 C               33.7 C
Stanley                      25.8 C               31.9 C
Kwun Tong                    26.5 C               32.5 C
Sham Shui Po                 28.1 C               33.8 C
Kai Tak Runway Park          26.3 C               33.1 C
Yuen Long Park               28.3 C               34.7 C
Tai Mei Tuk               27.2 C               35.2 C

Duration of sunshine (King's Park):              8.6 H
The mean UV index recorded at King's Park yesterday was 5,
the UV intensity was Moderate.
The maximum UV index for yesterday was 9.
 

Yesterday's (15 Aug 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                               0.11
Yuen Ng Fan                         0.11
Tai Mei Tuk                         0.10
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                        0.12

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 15 Aug
     2003copy right image | Important notices | Privacy policy Last revision date: <16 Aug 2019> 

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