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Bulletin issued at 10:02 HKT 06/Jul/2018

At 10 a.m. at the Hong Kong Observatory the air temperature was 30 degrees Celsius and the relative humidity 79 per cent.
During the past hour the mean UV Index recorded at King's Park was 4. The intensity of UV radiation was moderate.

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

The air temperatures at other places were:

King's Park 31 degrees;
Wong Chuk Hang 30 degrees;
Ta Kwu Ling 32 degrees;
Lau Fau Shan 31 degrees;
Tai Po 30 degrees;
Sha Tin 31 degrees;
Tuen Mun 32 degrees;
Tseung Kwan O 31 degrees;
Sai Kung 32 degrees;
Cheung Chau 30 degrees;
Chek Lap Kok 32 degrees;
Tsing Yi 31 degrees;
Shek Kong 32 degrees;
Tsuen Wan Ho Koon 29 degrees;
Tsuen Wan Shing Mun Valley 31 degrees;
Hong Kong Park 30 degrees;
Shau Kei Wan 30 degrees;
Kowloon City 31 degrees;
Happy Valley 30 degrees;
Wong Tai Sin 31 degrees;
Stanley 30 degrees;
Kwun Tong 30 degrees;
Sham Shui Po 31 degrees;
Kai Tak Runway Park 30 degrees;
Yuen Long Park 32 degrees;
Tai Mei Tuk 33 degrees.


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


Climatological Information for 6 Jul

Regional Weather in Hong Kong

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Bulletin updated at 09:45 HKT 06/Jul/2018

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

The southwest monsoon is affecting the coast of Guangdong.

Weather forecast for today

Hot with sunny periods and isolated showers. Moderate south to southwesterly winds.

Outlook : Hot with sunny periods and isolated showers in the next couple of days.


(The above forecast period is valid up to 23:59 HKT today, 06/07/2018; 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 06/Jul/2018

N0 WARNING.

GENERAL SITUATION AT 052100 UTC:
THE SOUTHWEST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 060100 UTC:

HONG KONG= S TO SW 4, OCNL 5. ISOL SHOWERS AND TS. SEA UP TO 2 M. TEMP 32-29 C. =
KWANGTUNG= S TO SW 4-5, OCNL 6. ISOL SHOWERS AND TS. SEA UP TO 3 M. SWELL SW UP TO 2 M. =
TAIWAN STRAIT= S TO SW 5-6, OCNL 7. ISOL SHOWERS AND TS. SEA UP TO 4 M. SWELL SW UP TO 3 M. =
BASHI= S TO SW 5-6, OCNL 7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS IN E. SEA UP TO 4 M. SWELL SW UP TO 3 M. =
PRATAS= S TO SW 5, OCNL 6. ISOL SHOWERS AND TS. SEA UP TO 3 M. SWELL SW 2 M. =
BALINTANG= S TO SW 5-6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS IN E. SEA 2-3 M. SWELL SW UP TO 3 M. =
SCARBOROUGH= S TO SW 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. SWELL SW UP TO 3 M. =
PARACEL= S 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. SWELL SW UP TO 2 M. =
TONKIN= S 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. SWELL S UP TO 2 M. =
DANANG= S 5-6. ISOL SHOWERS AND TS. SEA 2-3 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 09:30 HKT 06/Jul/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 9:30 a.m. on 06 July 2018

    Warnings:
    Strong winds in Nan'ao.

    Weather Situation:
    The southwest monsoon is affecting the south China coastal waters.

    Area forecasts for the next 24 hours

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

    Nan'ao:
    South to southwest force 4 to 5, occasionally force 6.
    Isolated showers and thunderstorms.
    Moderate to rough seas.

    Shanwei, South of Hong Kong and Shangchuan Dao:
    South to southwest force 4 to 5.
    Isolated showers and thunderstorms.
    Moderate seas.

    Outlook for the next 48 hours
    South to southwesterly winds of force 5, becoming southeasterly winds of force 4 to 5. Isolated showers and thunderstorms.

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

    Waglan Island Wind south force 3
      Visibility 21 Kilometres

    Shantou Wind west-southwest force 2
      Visibility 27 Kilometres

    Huangmaozhou Wind south force 3

    Macau Wind south force 2
      Visibility 15 Kilometres

    Xisha Wind south force 2
      Visibility 19 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 09:30 HKT 06/JUL/2018
    (Next update at 12:30 HKT 06/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 SOUTHWEST MONSOON IS AFFECTING THE SOUTH
     CHINA COASTAL AREAS.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  210/10
                  TEMPO VRB/15G25 IN TS
       OFFSHORE:  210/15 OCNL 20                       29-32
   B.   2000 FT:  210/15 OCNL 20                       24
   C.   5000 FT:  220/20                               19
   D.  10000 FT:  230/10                               11
   E.  18000 FT:  060/10                               MS1
   F.  24000 FT:  070/15                               MS10
   G.  30000 FT:  060/25                               MS23
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      SUNNY PERIODS. A FEW ISOLATED SHOWERS AND
      THUNDERSTORMS OVER INLAND LATER.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT TEMPO FEW CB 1000 FT  SCT 2000 FT
      BKN 6000 FT.
   K. VISIBILITY    : 10 KM.  TEMPO 4000 M IN SHOWERS. TEMPO 2000 M IN TS.
   L. 0 DEG. C LEVEL: 17500 FT      10 DEG. C LEVEL(S) : 10800 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS. MOD OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 1.0-2.5 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE SOUTH TO SOUTHWESTERLY WINDS.  MAINLY
     CLOUDY.=

    ===================================================================
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 06/Jul/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     31.6 C
Minimum Air Temperature                     28.4 C
Grass Minimum Temperature                   27.8 C
Relative Humidity                        74 - 82 Percent
Rainfall                                     1.5 mm 
Total rainfall since 1st January           660.3 mm
Against an average of                     1152.1 mm

Other Stations                Min                  Max
King's Park                  28.1 C               31.2 C
Wong Chuk Hang               28.6 C               30.5 C
Ta Kwu Ling                  26.4 C               31.0 C
Lau Fau Shan                 26.0 C               30.1 C
Tai Po                       25.9 C               29.7 C
Sha Tin                      27.1 C               30.9 C
Tuen Mun                     26.8 C               30.1 C
Tseung Kwan O                27.8 C               30.7 C
Sai Kung                     27.9 C               30.4 C
Cheung Chau                  26.9 C               31.5 C
Chek Lap Kok                 27.7 C               33.4 C
Tsing Yi                     27.0 C               30.2 C
Shek Kong                    27.2 C               30.6 C
Tsuen Wan Ho Koon            25.3 C               27.9 C
Tsuen Wan Shing Mun Valley   26.4 C               29.0 C
Hong Kong Park               28.4 C               31.5 C
Shau Kei Wan                 27.4 C               31.1 C
Kowloon City                 27.7 C               31.7 C
Happy Valley                 29.1 C               31.6 C
Wong Tai Sin                 28.0 C               31.5 C
Stanley                      27.7 C               31.0 C
Kwun Tong                    28.9 C               31.1 C
Sham Shui Po                 28.2 C               31.6 C
Kai Tak Runway Park          28.5 C               31.0 C
Yuen Long Park               27.3 C               30.0 C
Tai Mei Tuk               25.7 C               28.9 C

Duration of sunshine (King's Park):              2.6 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 8.
 

Yesterday's (05 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                             0.09
Kat O                               0.10
Yuen Ng Fan                         0.12
Tai Mei Tuk                         0.12
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 05 Jul
     2003copy right image | Important notices | Privacy policy Last revision date: <06 Jul 2018> 

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