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Bulletin issued at 04:02 HKT 08/Jul/2018

At 4 a.m. at the Hong Kong Observatory the air temperature was 27 degrees Celsius and the relative humidity 94 per cent.

The air temperatures at other places were:

King's Park 27 degrees;
Wong Chuk Hang 27 degrees;
Ta Kwu Ling 26 degrees;
Lau Fau Shan 26 degrees;
Tai Po 27 degrees;
Sha Tin 26 degrees;
Tuen Mun 27 degrees;
Tseung Kwan O 26 degrees;
Sai Kung 26 degrees;
Cheung Chau 27 degrees;
Chek Lap Kok 29 degrees;
Tsing Yi 26 degrees;
Shek Kong 27 degrees;
Tsuen Wan Ho Koon 26 degrees;
Tsuen Wan Shing Mun Valley 26 degrees;
Hong Kong Park 27 degrees;
Shau Kei Wan 27 degrees;
Kowloon City 27 degrees;
Happy Valley 27 degrees;
Wong Tai Sin 27 degrees;
Stanley 27 degrees;
Kwun Tong 27 degrees;
Sham Shui Po 27 degrees;
Kai Tak Runway Park 27 degrees;
Yuen Long Park 27 degrees;
Tai Mei Tuk 27 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


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Bulletin updated at 03:45 HKT 08/Jul/2018

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

A southerly airstream is affecting the coast of Guangdong.

At 4 a.m., Super Typhoon Maria near Guam was centred about 1490 kilometres southeast of Okinawa. It is forecast to move northwest at about 18 kilometres per hour towards the vicinity of north of Taiwan to Ryukyu Islands.

Weather forecast for today

Mainly cloudy with a few showers. Sunny intervals during the day. Temperatures will range between 27 and 32 degrees. Moderate south to southeasterly winds.

Outlook : Still a few showers in the following couple of days.


(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 21:00 HKT 07/Jul/2018

N0 WARNING.

GENERAL SITUATION AT 070900 UTC:
A SOUTHERLY AIRSTREAM IS AFFECTING THE FORECAST AREAS. TROUGH 22N 106E 23N 110E 26N 113E QSTNR.

MARINE FORECAST FOR 24 HOURS FROM 071300 UTC:

HONG KONG= S TO SE 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. SWELL S UP TO 2 M. TEMP 28-32 C. =
KWANGTUNG= S TO SE 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. SWELL S UP TO 2 M. =
TAIWAN STRAIT= S TO SE 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. SWELL SW 2 M. =
BASHI= SE 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. SWELL SW 2-3 M. =
PRATAS= SE 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. SWELL SW 2 M. =
BALINTANG= SE 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. SWELL SW 2-3 M. =
SCARBOROUGH= S TO SE 4-5, OCNL 6. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA UP TO 3 M. SWELL SW 3 M. =
PARACEL= S TO SE 4-5, OCNL 6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS IN S. SEA UP TO 3 M. SWELL S TO SW 2-3 M. =
TONKIN= S TO SE 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. SWELL S UP TO 2 M. =
DANANG= S TO SE 4-5, OCNL 6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS IN S. SEA UP TO 3 M. SWELL S 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 03:30 HKT 08/Jul/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 3:30 a.m. on 08 July 2018

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

    Area forecasts for the next 24 hours

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

    Nan'ao, Shanwei, South of Hong Kong and Shangchuan Dao:
    South to southeast force 4 to 5.
    Isolated showers and thunderstorms.
    Moderate 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 variable force 1
      Visibility 33 Kilometres

    Shantou Wind northeast force 1
      Visibility 26 Kilometres

    Huangmaozhou Wind east-southeast force 3

    Macau Wind south force 1
      Visibility 26 Kilometres

    Xisha Wind south-southeast force 1
      Visibility 28 Kilometres

  • Explanation of Seas or Sea Waves
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    • WEATHER FORECAST FOR LOCAL AVIATION
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    Weather Forecast for Local Aviation

    Bulletin issued at 01:30 HKT 08/JUL/2018
    (Next update at 9:00-9:30 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 :
     THE SOUTHERLY AIRSTREAM IS AFFECTING THE SOUTH
     CHINA COASTAL WATERS.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  140/5-10
                  TEMPO VRB/15G25 IN TS
       OFFSHORE:  150/10-15                            28-31
   B.   2000 FT:  150/10-15                            23
   C.   5000 FT:  150/10                               19
   D.  10000 FT:  140/10                               11
   E.  18000 FT:  140/10                               MS3
   F.  24000 FT:  110/10                               MS12
   G.  30000 FT:  050/15                               MS27
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY CLOUDY WITH A FEW SHOWERS AND ISOLATED
      THUNDERSTORMS. SUNNY INTERVALS DURING THE DAY.
   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 4000 M IN SHOWERS. TEMPO 2000 M IN TS.
   L. 0 DEG. C LEVEL: 18000 FT      10 DEG. C LEVEL(S) : 11600 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS.
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE SOUTHEASTERLY WINDS. SUNNY INTERVALS. 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 17:45 HKT on 03 Jul 18

    VHHK SIGMET 1 VALID 030556/030956 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2300 E11730 - N2200 E11542 - N2242 E11424 - N2400 E11730 - N2300 E11730 TOP FL420 MOV NE 10KT NC= VHHK SIGMET 2 VALID 030956/031315 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2230 E11730 - N2206 E11554 - N2242 E11518 - N2354 E11730 - N2230 E11730 TOP FL380 MOV NE 10KT WKN=

    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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