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Bulletin issued at 01:02 HKT 07/Oct/2018

At 1 a.m. at the Hong Kong Observatory the air temperature was 26 degrees Celsius and the relative humidity 71 per cent.

The air temperatures at other places were:

King's Park 25 degrees;
Wong Chuk Hang 24 degrees;
Ta Kwu Ling 21 degrees;
Lau Fau Shan 23 degrees;
Tai Po 23 degrees;
Sha Tin 23 degrees;
Tuen Mun 24 degrees;
Tseung Kwan O 24 degrees;
Sai Kung 25 degrees;
Cheung Chau 24 degrees;
Chek Lap Kok 26 degrees;
Tsing Yi 26 degrees;
Shek Kong 22 degrees;
Tsuen Wan Ho Koon 24 degrees;
Tsuen Wan Shing Mun Valley 23 degrees;
Hong Kong Park 26 degrees;
Shau Kei Wan 25 degrees;
Kowloon City 25 degrees;
Happy Valley 26 degrees;
Wong Tai Sin 25 degrees;
Stanley 24 degrees;
Kwun Tong 25 degrees;
Sham Shui Po 25 degrees;
Kai Tak Runway Park 26 degrees;
Yuen Long Park 22 degrees;
Tai Mei Tuk 24 degrees.


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


Climatological Information for 7 Oct

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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Bulletin updated at 00:45 HKT 07/Oct/2018

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

The northeast monsoon brought fine and very dry weather to southern China yesterday. Locally, it was fine and very dry. The relative humidity over most parts of the territory once fell below 40 per cent. An easterly airstream is expected to affect the coast of Guangdong early this week. It will be cloudier over the region.

Weather forecast for Hong Kong

One or two rain patches in the morning and at night. Mainly fine and dry during the day. Temperatures will range between 24 and 30 degrees. Moderate easterly winds, fresh at times.

Outlook : Sunny periods in the following couple of days. Slightly cooler in the middle and latter parts of this week.


(The above forecast period is valid up to 23:59 HKT today, 07/10/2018; 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 06/Oct/2018

GALE WARNING AREA: TAIWAN STRAIT.

GENERAL SITUATION AT 060900 UTC:
AN EASTERLY AIRSTREAM IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 061300 UTC:

HONG KONG= E 5-6. FINE. SEA 2-3 M. SWELL NE UP TO 2 M. TEMP 24-30 C. =
KWANGTUNG= E 5-6, UP TO 7 IN E. FINE. SEA 2-3 M, UP TO 4 M IN E. SWELL NE 2 M. =
TAIWAN STRAIT= E TO NE 7-8. ISOL SHOWERS AND TS. SEA 4-6 M. SWELL N TO NE 2-3 M, SW 2 M. =
BASHI= NE 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. SWELL N TO NE 3 M, SW 2 M. =
PRATAS= E 5-6, OCNL 7. FINE. SEA UP TO 4 M. SWELL N TO NE 2-3 M. =
BALINTANG= E TO NE 5-6. ISOL SHOWERS. SEA 2-3 M. SWELL N TO NE 3 M, SW 2 M. =
SCARBOROUGH= NE 4-5, OCNL 6. ISOL SHOWERS AND TS. SEA UP TO 3 M. SWELL N TO NE 2-3 M. =
PARACEL= E TO NE 5-6. FINE. SEA UP TO 3 M. SWELL NE 2 M. =
TONKIN= E TO NE 5-6. FINE. SEA 2-3 M. SWELL NE UP TO 2 M. =
DANANG= E TO NE 5-6. FINE. SEA 2-3 M. SWELL NE 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 23:30 HKT 06/Oct/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 11:30 p.m. on 06 October 2018

    Warnings:
    Strong winds in all areas.

    Weather Situation:
    An easterly airstream is affecting the south China coastal waters.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East force 5 to 6.
    A few rain patches.
    Moderate to rough seas.

    Nan'ao:
    East force 6 to 7.
    Rough seas.

    Shanwei:
    East force 5 to 6, occasionally force 7.
    Moderate to rough seas.

    South of Hong Kong and Shangchuan Dao:
    East force 5 to 6.
    Moderate to rough seas.

    Outlook for the next 48 hours
    Easterly winds of force 5 to 6.

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

    Waglan Island Wind north force 1
      Visibility 19 Kilometres

    Shantou Wind east-northeast force 2
      Visibility 29 Kilometres

    Dongsha Wind north force 2
      Visibility 10 Kilometres

    Huangmaozhou Wind east force 2

    Macau Wind south-southeast force 2
      Visibility 20 Kilometres

    Xisha Wind northeast force 1
      Visibility 17 Kilometres

  • Explanation of Seas or Sea Waves
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  • 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 01:30 HKT 07/OCT/2018
    (Next update at 9:00-9:30 HKT 07/OCT/2018)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AN EASTERLY AIRSTREAM IS AFFECTING 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:  090/5-10
       OFFSHORE:  090/10-15, OCNL 20                   24-30
   B.   2000 FT:  070/10-15                            21
   C.   5000 FT:  080/15                               16
   D.  10000 FT:  360/15                               10
   E.  18000 FT:  320/15                               MS1
   F.  24000 FT:  300/15                               MS12
   G.  30000 FT:  270/10                               MS27
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      ONE OR TWO RAIN PATCHES IN THE MORNING. MAINLY
      FINE DURING THE DAY.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 3000 FT.
   K. VISIBILITY    : 10 KM.
   L. 0 DEG. C LEVEL: 17000 FT      10 DEG. C LEVEL(S) : 10200 FT
   M. TURBULENCE    : MOD OFFSHORE.
   N. SEA STATE     : 1.0-2.0 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EASTERLY WINDS, OCCASIONALLY FRESH.
     MAINLY FINE.=

    ===================================================================
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 10:00 HKT on 02 Oct 18

    VHHK SIGMET 1 VALID 020200/020600 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N1800 E11506 - N1642 E11400 - N1754 E11254 - N1800 E11506 TOP FL400 MOV W 5KT 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/Oct/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     30.9 C
Minimum Air Temperature                     23.5 C
Grass Minimum Temperature                   19.9 C
Relative Humidity                        37 - 71 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January          1976.2 mm
Against an average of                     2268.3 mm

Other Stations                Min                  Max
King's Park                  23.1 C               30.7 C
Wong Chuk Hang               23.3 C               30.5 C
Ta Kwu Ling                  18.8 C               31.1 C
Lau Fau Shan                 21.5 C               30.0 C
Tai Po                       20.7 C               29.1 C
Sha Tin                      19.5 C               30.3 C
Tuen Mun                     22.3 C               30.9 C
Tseung Kwan O                20.3 C               31.0 C
Sai Kung                     23.6 C               28.9 C
Cheung Chau                  21.7 C               32.7 C
Chek Lap Kok                 22.6 C               30.2 C
Tsing Yi                     21.1 C               30.8 C
Shek Kong                    20.1 C               31.7 C
Tsuen Wan Ho Koon            21.2 C               30.3 C
Tsuen Wan Shing Mun Valley   19.0 C               32.1 C
Hong Kong Park               22.7 C               30.5 C
Shau Kei Wan                 23.8 C               31.0 C
Kowloon City                 22.9 C               31.6 C
Happy Valley                 22.1 C               31.9 C
Wong Tai Sin                 22.9 C               30.8 C
Stanley                      24.2 C               30.0 C
Kwun Tong                    23.0 C               30.1 C
Sham Shui Po                 22.7 C               31.6 C
Kai Tak Runway Park          22.7 C               30.2 C
Yuen Long Park               18.6 C               31.7 C
Tai Mei Tuk               22.2 C               31.5 C

Duration of sunshine (King's Park):              10.9 H
The mean UV index recorded at King's Park yesterday was 4,
the UV intensity was Moderate.
The maximum UV index for yesterday was 7.
 

Yesterday's (06 Oct 2018) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.09 to
0.15 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                          0.09
King's Park                         0.15
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 Oct
     2003copy right image | Important notices | Privacy policy Last revision date: <07 Oct 2018> 

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