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Bulletin issued at 03:26 HKT 16/Aug/2019

At 3 a.m. at the Hong Kong Observatory the air temperature was 29 degrees Celsius and the relative humidity 83 per cent.

Please be reminded that:

The Thunderstorm Warning was issued at 3:25 a.m. It will remain effective until 5:15 a.m. today. Isolated thunderstorms are expected to occur over Lantau, Hong Kong Island and Kowloon.

The air temperatures at other places were:

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


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


Climatological Information for 16 Aug

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


Local Weather Forecast
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Bulletin updated at 02:45 HKT 16/Aug/2019

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

A southwesterly airstream is bringing showers to the coast of Guangdong.

Weather forecast for today

Mainly cloudy with a few showers and thunderstorms. The minimum temperature will be about 27 degrees. Hot with sunny periods during the day. The maximum temperature will be around 32 degrees. Moderate southwesterly winds, occasionally fresh offshore.

Outlook : Showers and squally thunderstorms over the weekend. Weather remaining unsettled early next week.


(The above forecast period is valid up to 23:59 HKT today, 16/08/2019; 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 21:00 HKT 15/Aug/2019

GALE WARNING AREAS: BASHI AND BALINTANG.

GENERAL SITUATION AT 150900 UTC:
A SOUTHWESTERLY AIRSTREAM IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 151300 UTC:

HONG KONG= SW 4-5, OCNL 6. ISOL SHOWERS AND TS. SEA UP TO 3 M. SWELL SW 2 M. TEMP 32-27 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. ISOL 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= SW 4-5, OCNL 6. ISOL SHOWERS AND TS. SEA UP TO 3 M. =
DANANG= SW 4-5, OCNL 6. ISOL SHOWERS AND TS. SEA UP TO 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 03:30 HKT 16/Aug/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 3:30 a.m. on 16 August 2019

    Warnings:
    Strong winds in all areas.

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

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    Southwest force 4 to 5, occasionally force 6.
    Isolated showers and thunderstorms.
    Moderate to rough seas.

    Nan'ao, Shanwei and South of Hong Kong:
    Southwest force 5 to 6.
    Isolated showers and squally thunderstorms.
    Moderate to rough seas.

    Shangchuan Dao:
    Southwest force 4 to 5, occasionally force 6.
    Isolated showers and thunderstorms.
    Moderate to rough seas.

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

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

    Waglan Island Wind southwest force 4
      Visibility 24 Kilometres

    Shantou Wind west force 1
      Visibility 9 Kilometres

    Dongsha Wind southwest force 4
      Visibility 10 Kilometres

    Huangmaozhou Wind west-southwest force 5

    Xisha Wind south-southwest force 4
      Visibility 13 Kilometres

  • Explanation of Seas or Sea Waves
  • Explanation of Swells
  • Descriptive Terms of Wind Speeds
  • Visibility Readings in Hong Kong Waters
  • Map showing forecast areas
  • Tidal Information

    • WEATHER FORECAST FOR LOCAL AVIATION
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    Weather Forecast for Local Aviation

    Bulletin issued at 01:30 HKT 16/AUG/2019
    (Next update at 9:00-9:30 HKT 16/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 SHOWERS TO
     THE COASTAL AREAS OF GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  240/10-15
                  TEMPO VRB/15G25 IN TS
       OFFSHORE:  240/15-20                            31-27
   B.   2000 FT:  250/15-20                            25
   C.   5000 FT:  270/20                               20
   D.  10000 FT:  270/20                               12
   E.  18000 FT:  270/15                               MS1
   F.  24000 FT:  240/15                               MS11
   G.  30000 FT:  270/10                               MS23
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY CLOUDY WITH A FEW SHOWERS AND
      THUNDERSTORMS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 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     : 2.0-2.5 M     SEA TEMPERATURE    : 29 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE SOUTHWESTERLY WINDS, OCCASIONALLY FRESH
     OFFSHORE. MAINLY CLOUDY WITH A FEW SHOWERS AND
     THUNDERSTORMS. SUNNY PERIODS DURING THE DAY.=

    ===================================================================
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 02:14 HKT on 16 Aug 19

    VHHK SIGMET 5 VALID 151820/152220 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2258 E11501 - N2400 E11730 - N2159 E11730 - N2158 E11454 - N2258 E11501 TOP FL380 MOV E 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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