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Automatic Regional Weather Forecast in Hong Kong & Pearl River Delta Region

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Weather Information for South China Coastal Waters

Bulletin issued at 21:02 HKT 07/Aug/2018

At 9 p.m. at the Hong Kong Observatory the air temperature was 30 degrees Celsius and the relative humidity 77 per cent.

Please be reminded that:

The Very Hot Weather Warning is now in force. Very hot weather might cause adverse health effects. Members of the public should take care to avoid heatstroke.

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 29 degrees;
Sha Tin 28 degrees;
Tuen Mun 27 degrees;
Tseung Kwan O 28 degrees;
Sai Kung 29 degrees;
Cheung Chau 28 degrees;
Chek Lap Kok 29 degrees;
Tsing Yi 28 degrees;
Tsuen Wan Ho Koon 26 degrees;
Tsuen Wan Shing Mun Valley 26 degrees;
Hong Kong Park 29 degrees;
Shau Kei Wan 29 degrees;
Kowloon City 29 degrees;
Happy Valley 30 degrees;
Wong Tai Sin 29 degrees;
Stanley 29 degrees;
Kwun Tong 29 degrees;
Sham Shui Po 29 degrees;
Kai Tak Runway Park 30 degrees;
Yuen Long Park 27 degrees;
Tai Mei Tuk 29 degrees.


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


Climatological Information for 7 Aug

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


Local Weather Forecast
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Local Weather Forecast

Automatic Regional Weather Forecast in Hong Kong & Pearl River Delta Region

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UV Index Forecast |  Weather Information for South China Coastal Waters

Bulletin updated at 20:45 HKT 07/Aug/2018

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

Showers are affecting the coastal areas of Guangdong. Meanwhile, a broad area of low pressure over the central part of the South China Sea is bringing unsettled weather to the region.

At 8 p.m., the tropical depression east of the Philippines over the western North Pacific was centred about 960 kilometres south-southeast of Okinawa. It is forecast to move north slowly, lingering over the western North Pacific.

Weather forecast for tonight and tomorrow

Mainly cloudy with isolated showers. Very hot with sunny periods tomorrow. Temperatures will range between 28 and 33 degrees. Moderate easterly winds, occasionally fresh later.

Outlook : More showers in the following few days.


(The above forecast period is valid up to 23:59 HKT tomorrow, 08/08/2018; 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 07/Aug/2018

N0 WARNING.

GENERAL SITUATION AT 070900 UTC:
AN EASTERLY AIRSTREAM IS GENERALLY AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 071300 UTC:

HONG KONG= E 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. TEMP 28-33 C. =
KWANGTUNG= E 4-5, OCNL 6. ISOL SHOWERS AND TS. SEA UP TO 3 M. =
TAIWAN STRAIT= E TO NE 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. =
BASHI= E 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. SWELL E UP TO 2 M. =
PRATAS= E 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. SWELL E UP TO 2 M. =
BALINTANG= E 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. SWELL E UP TO 2 M. =
SCARBOROUGH= SE 5-6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL SW 2 M. =
PARACEL= E TO NE 4-5, OCNL 6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 3 M. =
TONKIN= E TO NE 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. =
DANANG= N TO NW 4-5. DOWN TO 4000 M IN ISOL 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 07/Aug/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 7:30 p.m. on 07 August 2018

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

    Weather Situation:
    An easterly airstream is affecting the south China coastal waters. Besides, a broad area of low pressure over the central part of the South China Sea is bringing unsettled weather to the region.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East force 4 to 5.
    Isolated showers and thunderstorms.
    Moderate seas.

    Nan'ao, Shanwei, South of Hong Kong and Shangchuan Dao:
    East force 4 to 5, occasionally force 6.
    Isolated showers and thunderstorms.
    Moderate to rough seas.

    Outlook for the next 48 hours
    East to southeasterly winds of force 4 to 5, occasionally force 6. Isolated showers and thunderstorms.

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

    Waglan Island Wind east-northeast force 2
      Visibility 30 Kilometres

    Shantou Wind east-southeast force 2
      Visibility 30 Kilometres

    Huangmaozhou Wind east-southeast force 3

    Macau Wind north-northeast force 1
      Visibility 30 Kilometres

    Xisha Wind northeast force 3
      Visibility 22 Kilometres

  • Explanation of Seas or Sea Waves
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  • 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 17:30 HKT 07/AUG/2018
    (Next update at 01:30 HKT 08/AUG/2018)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AN EASTERLY AIRSTREAM IS AFFECTING THE SOUTH
     CHINA COASTAL AREAS.  BESIDES, A BROAD AREA OF
     LOW PRESSURE OVER THE CENTRAL PART OF THE SOUTH
     CHINA SEA IS BRINGING UNSETTLED WEATHER TO THE
     REGION.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  100/5-10
                  TEMPO VRB/15G25 IN TS
       OFFSHORE:  100/10-15                            30-27
   B.   2000 FT:  120/10-15                            24
   C.   5000 FT:  090/15                               20
   D.  10000 FT:  090/15                               12
   E.  18000 FT:  100/15                               MS2
   F.  24000 FT:  140/10                               MS13
   G.  30000 FT:  290/10                               MS25
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY CLOUDY WITH ISOLATED SHOWERS.  A FEW
      THUNDERSTORMS AT FIRST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT  SCT 4000 FT.  TEMPO FEW CB 1000 FT
      SCT 2000 FT  BKN 4000 FT.
   K. VISIBILITY    : 10 KM.  TEMPO 4000 M IN SHOWERS.
                      TEMPO 2000 M IN TS.
   L. 0 DEG. C LEVEL: 17000 FT      10 DEG. C LEVEL(S) : 11000 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS.
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 29 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EASTERLY WINDS, OCCASIONALLY FRESH
     OFFSHORE LATER.  SUNNY PERIODS AND ISOLATED
     SHOWERS.=

    ===================================================================
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 05:45 HKT on 07 Aug 18

    VHHK SIGMET 4 VALID 062145/070145 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2242 E11654 - N2054 E11200 - N2136 E11136 - N2330 E11618 - N2242 E11654 TOP FL350 STNR 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 07/Aug/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     33.8 C
Minimum Air Temperature                     28.8 C
Grass Minimum Temperature                   27.7 C
Relative Humidity                        61 - 84 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January           989.2 mm
Against an average of                     1562.4 mm

Other Stations                Min                  Max
King's Park                  28.2 C               33.3 C
Wong Chuk Hang               27.3 C               32.5 C
Ta Kwu Ling                  26.0 C               34.1 C
Lau Fau Shan                 25.2 C               32.7 C
Tai Po                       26.8 C               32.8 C
Sha Tin                      26.7 C               33.1 C
Tuen Mun                     25.3 C               32.7 C
Tseung Kwan O                26.5 C               33.9 C
Sai Kung                     28.0 C               33.1 C
Cheung Chau                  27.3 C               31.7 C
Chek Lap Kok                 27.8 C               34.7 C
Tsing Yi                     26.3 C               33.1 C
Tsuen Wan Ho Koon            26.0 C               31.3 C
Tsuen Wan Shing Mun Valley   26.7 C               33.5 C
Hong Kong Park               27.8 C               32.9 C
Shau Kei Wan                 27.7 C               32.6 C
Kowloon City                 28.4 C               32.5 C
Happy Valley                 27.9 C               35.8 C
Wong Tai Sin                 28.2 C               33.9 C
Stanley                      27.6 C               32.9 C
Kwun Tong                    28.5 C               34.0 C
Sham Shui Po                 25.9 C               33.0 C
Kai Tak Runway Park          27.8 C               32.0 C
Yuen Long Park               26.4 C               32.2 C
Tai Mei Tuk               27.8 C               34.0 C

Duration of sunshine (King's Park):              5.1 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 10.
 

Yesterday's (06 Aug 2018) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.08 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                           0.12
Sai Wan Ho                          0.08
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 06 Aug
     2003copy right image | Important notices | Privacy policy Last revision date: <07 Aug 2018> 

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