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Bulletin issued at 15:02 HKT 08/Jul/2018

At 3 p.m. at the Hong Kong Observatory the air temperature was 29 degrees Celsius and the relative humidity 85 per cent.
During the past hour the mean UV Index recorded at King's Park was 5. The intensity of UV radiation was moderate.

Hot weather might cause adverse health effects. The Observatory advises the public to stay on the alert.

Please be reminded that:

The Thunderstorm Warning has been issued. It will remain effective until 4:30 p.m. today. Isolated thunderstorms are expected to occur over Eastern Waters of Hong Kong.

The air temperatures at other places were:

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


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


Climatological Information for 8 Jul

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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

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Bulletin updated at 14:45 HKT 08/Jul/2018

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

A southerly airstream is bringing showers to the coast of Guangdong. Locally, showers before noon brought a few millimetres of rainfall over Lantau Island.

At noon, Super Typhoon Maria was centred about 1830 kilometres east-southeast of Taibei. It is forecast to move west-northwest at about 20 kilometres per hour towards the vicinity of north of Taiwan.

Weather forecast for this afternoon and tonight

Mainly cloudy with a few showers and isolated thunderstorms. Hot with sunny intervals in the afternoon. Moderate southeasterly winds.

Outlook : A few showers in the next couple of days. It will be very hot midweek this week.


(The above forecast period is valid up to 23:59 HKT today, 08/07/2018; 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 09:00 HKT 08/Jul/2018

N0 WARNING.

GENERAL SITUATION AT 072100 UTC:
A SOUTHERLY AIRSTREAM IS GENERALLY AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 080100 UTC:

HONG KONG= SE 4, OCNL 5, E TO SE UP TO 6 LATER. ISOL SHOWERS AND TS. SEA UP TO 2 M, 3 M LATER. SWELL S UP TO 2 M. TEMP 32-27 C. =
KWANGTUNG= SE 4-5, E TO SE UP TO 6 LATER. ISOL SHOWERS AND TS. SEA UP TO 2 M, 3 M LATER. SWELL S UP TO 2 M. =
TAIWAN STRAIT= SE 4-5, NE 6 LATER. ISOL SHOWERS AND TS. SEA UP TO 2 M, 3 M LATER. SWELL SW 2 M. =
BASHI= E TO SE 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. SWELL S TO SE 2-3 M. =
PRATAS= E TO SE 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. SWELL S 2 M. =
BALINTANG= E TO SE 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. SWELL S TO SE 2-3 M. =
SCARBOROUGH= SE 4-5, OCNL 6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 3 M. SWELL SW 2-3 M. =
PARACEL= SE 4-5, OCNL 6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 3 M. SWELL S TO SW 2-3 M. =
TONKIN= SE 4-5. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 2 M. SWELL S UP TO 2 M. =
DANANG= S TO SW 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.


  • 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 12:30 HKT 08/Jul/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 12:30 p.m. on 08 July 2018

    Warnings:
    Strong winds in all areas.

    Weather Situation:
    The southerly airstream is affecting the south China coastal waters.

    At noon, Super Typhoon Maria with maximum sustained winds of about 195 kilometres per hour near its centre was located near 19.5 degrees north, 138.3 degrees east. It is forecast to move west-northwest at about 20 kilometres per hour towards the vicinity of north of Taiwan.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    Southeast force 4, occasionally force 5. Becoming east to southeast up to force 6.
    Isolated showers and thunderstorms.
    Moderate seas, becoming rough.

    Nan'ao, Shanwei, South of Hong Kong and Shangchuan Dao:
    Southeast force 4 to 5, becoming east to southeast up to force 6.
    Isolated showers and thunderstorms.
    Moderate seas, becoming rough.

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

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

    Waglan Island Wind east force 1
      Visibility 39 Kilometres

    Shantou Wind east-northeast force 2
      Visibility 30 Kilometres

    Huangmaozhou Wind southeast force 3

    Macau Wind east force 2
      Visibility 21 Kilometres

    Xisha Wind southwest force 2
      Visibility 30 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
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    • WEATHER FORECAST FOR LOCAL AVIATION
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    Weather Forecast for Local Aviation

    Bulletin issued at 12:30 HKT 08/JUL/2018
    (Next update at 17:30 HKT 08/JUL/2018)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
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 1300 TO 2300 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  110/10
                  TEMPO VRB/15G25 IN TS
       OFFSHORE:  110/10-15                            33-29
   B.   2000 FT:  140/15-20                            23
   C.   5000 FT:  130/10                               19
   D.  10000 FT:  130/10                               12
   E.  18000 FT:  100/10                               0
   F.  24000 FT:  090/10                               MS11
   G.  30000 FT:  080/15                               MS25
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      SUNNY PERIODS WITH A FEW SHOWERS AND ISOLATED THUNDERSTORMS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT  SCT 3000 FT.  
      TEMPO FEW CB 1000 FT  SCT 2500 FT  BKN 5000 FT.
   K. VISIBILITY    : 10 KM.  TEMPO 3500 M IN SHOWERS. 
                      TEMPO 2000 M IN TS.
   L. 0 DEG. C LEVEL: 18000 FT      10 DEG. C LEVEL(S) : 11400 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS. 
                      MOD OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EAST TO SOUTHEASTERLY WINDS. MAINLY
     CLOUDY. A FEW 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.

    The latest significant weather information
    issued by the Hong Kong Observatory at 14:18 HKT on 08 Jul 18

    VHHK SIGMET 1 VALID 080620/081020 VHHH- VHHK HONG KONG FIR EMBD TS FCST AT 0559Z WI N2100 E11636 - N2018 E11600 - N2230 E11400 - N2254 E11448 - N2300 E11530 - N2312 E11636 - N2100 E11636 TOP FL350 MOV WNW 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 08/Jul/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     30.0 C
Minimum Air Temperature                     26.4 C
Grass Minimum Temperature                   27.0 C
Relative Humidity                        77 - 94 Percent
Rainfall                                     5.2 mm 
Total rainfall since 1st January           670.5 mm
Against an average of                     1176.7 mm

Other Stations                Min                  Max
King's Park                  26.2 C               30.0 C
Wong Chuk Hang               27.7 C               29.7 C
Ta Kwu Ling                  26.4 C               31.6 C
Lau Fau Shan                 26.2 C               30.2 C
Tai Po                       26.2 C               29.7 C
Sha Tin                      25.1 C               30.0 C
Tuen Mun                     27.7 C               31.1 C
Tseung Kwan O                26.5 C               31.3 C
Sai Kung                     26.4 C               30.7 C
Cheung Chau                  27.3 C               29.7 C
Chek Lap Kok                 29.2 C               32.8 C
Tsing Yi                     27.4 C               30.7 C
Shek Kong                    27.7 C               31.9 C
Tsuen Wan Shing Mun Valley   27.1 C               30.6 C
Hong Kong Park               25.4 C               29.5 C
Shau Kei Wan                 27.3 C               31.4 C
Kowloon City                 24.5 C               29.9 C
Happy Valley                 28.4 C               30.8 C
Wong Tai Sin                 26.3 C               30.7 C
Stanley                      27.8 C               30.9 C
Kwun Tong                    26.9 C               30.8 C
Sham Shui Po                 26.4 C               30.4 C
Kai Tak Runway Park          26.6 C               31.4 C
Yuen Long Park               27.2 C               31.7 C
Tai Mei Tuk               26.4 C               29.9 C

Duration of sunshine (King's Park):              0.2 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 4.
 

Yesterday's (07 Jul 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                             0.08
Kat O                               0.10
Yuen Ng Fan                         0.11
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 07 Jul
     2003copy right image | Important notices | Privacy policy Last revision date: <08 Jul 2018> 

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