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Bulletin issued at 12:02 HKT 06/Oct/2018

At noon at the Hong Kong Observatory the air temperature was 29 degrees Celsius and the relative humidity 41 per cent.
During the past hour the mean UV Index recorded at King's Park was 7. The intensity of UV radiation was high.

Please be reminded that:

The Fire Danger Warning is Red and the fire risk is extreme.

The air temperatures at other places were:

King's Park 29 degrees;
Wong Chuk Hang 29 degrees;
Ta Kwu Ling 29 degrees;
Lau Fau Shan 27 degrees;
Tai Po 28 degrees;
Sha Tin 28 degrees;
Tuen Mun 29 degrees;
Tseung Kwan O 30 degrees;
Sai Kung 28 degrees;
Cheung Chau 31 degrees;
Chek Lap Kok 29 degrees;
Tsing Yi 30 degrees;
Shek Kong 30 degrees;
Tsuen Wan Ho Koon 28 degrees;
Tsuen Wan Shing Mun Valley 31 degrees;
Hong Kong Park 30 degrees;
Shau Kei Wan 30 degrees;
Kowloon City 30 degrees;
Happy Valley 31 degrees;
Wong Tai Sin 30 degrees;
Stanley 29 degrees;
Kwun Tong 29 degrees;
Sham Shui Po 30 degrees;
Kai Tak Runway Park 30 degrees;
Yuen Long Park 29 degrees;
Tai Mei Tuk 31 degrees.

No rainfall was recorded at the Hong Kong Observatory between midnight last night and midday today.


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


Climatological Information for 6 Oct

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 11:45 HKT 06/Oct/2018

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

The northeast monsoon is bringing fine and very dry weather to southern China. Locally, the relative humidity over most parts of the territory fell to 40 per cent or below around noon.

Weather forecast for this afternoon and tonight

Fine. Very dry in the afternoon. Moderate northerly winds, becoming light winds later.

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


(The above forecast period is valid up to 23:59 HKT today, 06/10/2018; 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 09:00 HKT 06/Oct/2018

N0 WARNING.

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

MARINE FORECAST FOR 24 HOURS FROM 060100 UTC:

HONG KONG= N 4-5, OCNL 6. FINE. SEA UP TO 3 M. SWELL NE UP TO 2 M. TEMP 31-24 C. =
KWANGTUNG= N TO NE 5-6, E 6 LATER. ISOL SHOWERS. SEA 2-3 M. SWELL N TO NE 2-3 M. =
TAIWAN STRAIT= NE 5-6, 7 LATER. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-3 M, 4 M LATER. SWELL N TO NE 3 M. =
BASHI= N TO NE 5-6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL N TO NE 3-4 M. =
PRATAS= N TO NE 4-5, E 6 LATER. ISOL SHOWERS AND TS. SEA 2 M, 3 M LATER. SWELL N TO NE 4 M. =
BALINTANG= N TO NE 5-6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL N TO NE 3-4 M. =
SCARBOROUGH= N TO NE 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. SWELL N TO NE 3 M. =
PARACEL= N TO NE 4-5, OCNL 6. FINE. SEA UP TO 3 M. SWELL NE 2-3 M. =
TONKIN= N TO NE 4-5, OCNL 6. FINE. SEA UP TO 3 M. SWELL NE UP TO 2 M. =
DANANG= N TO NE 4-5, OCNL 6. FINE. SEA UP TO 3 M. SWELL NE 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 06/Oct/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 12:30 p.m. on 06 October 2018

    Warnings:
    Strong winds in all areas.

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

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    North force 5 to 6, becoming east force 6 later.
    One or two rain patches later.
    Moderate to rough seas.

    Nan'ao, Shanwei, South of Hong Kong and Shangchuan Dao:
    North to northeast force 5 to 6, becoming east force 6 later.
    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-northeast force 2

    Shantou Wind east force 1
      Visibility 30 Kilometres

    Dongsha Wind north-northeast force 1
      Visibility 10 Kilometres

    Huangmaozhou Wind north-northeast force 2

    Macau Wind north-northeast force 3
      Visibility 22 Kilometres

    Xisha Wind northeast force 2
      Visibility 20 Kilometres

  • Explanation of Seas or Sea Waves
  • Explanation of Swells
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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 12:30 HKT 06/OCT/2018
    (Next update at 17:30 HKT 06/OCT/2018)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE NORTHEAST MONSOON 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:  360/10
                  BEC 090/5-10
       OFFSHORE:  360/15-20
                  BEC 090/10-15                        31-26
   B.   2000 FT:  060/10-15                            22
   C.   5000 FT:  010/10-15
                  BEC 070/10                           16
   D.  10000 FT:  330/15                               10
   E.  18000 FT:  320/20                               MS1
   F.  24000 FT:  280/15                               MS12
   G.  30000 FT:  270/10                               MS27
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      FINE.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      NO CLOUDS OF HEIGHT AT OR BELOW 10000FT.
   K. VISIBILITY    : 10 KM.
   L. 0 DEG. C LEVEL: 17000 FT      10 DEG. C LEVEL(S) : 10000 FT
   M. TURBULENCE    : MOD OFFSHORE.
   N. SEA STATE     : 1.0-2.0 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     LIGHT TO MODERATE EASTERLY WINDS. CLOUDY PERIODS.=

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

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

Hong Kong Observatory
Maximum Air Temperature                     31.4 C
Minimum Air Temperature                     23.6 C
Grass Minimum Temperature                   20.2 C
Relative Humidity                        32 - 47 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January          1976.2 mm
Against an average of                     2262.0 mm

Other Stations                Min                  Max
King's Park                  23.3 C               29.7 C
Wong Chuk Hang               21.8 C               30.7 C
Ta Kwu Ling                  16.4 C               30.3 C
Lau Fau Shan                 22.8 C               29.2 C
Tai Po                       20.6 C               29.8 C
Sha Tin                      20.8 C               30.3 C
Tuen Mun                     23.1 C               30.6 C
Tseung Kwan O                20.3 C               31.1 C
Sai Kung                     23.8 C               29.2 C
Cheung Chau                  21.7 C               31.9 C
Chek Lap Kok                 24.3 C               30.7 C
Tsing Yi                     21.5 C               30.4 C
Shek Kong                    18.1 C               31.5 C
Tsuen Wan Ho Koon            21.3 C               29.2 C
Tsuen Wan Shing Mun Valley   20.0 C               31.0 C
Hong Kong Park               23.3 C               29.9 C
Shau Kei Wan                 24.1 C               30.8 C
Kowloon City                 22.8 C               30.9 C
Happy Valley                 23.7 C               31.7 C
Wong Tai Sin                 23.0 C               31.4 C
Stanley                      23.6 C               31.5 C
Kwun Tong                    22.7 C               30.6 C
Sham Shui Po                 21.7 C               31.8 C
Kai Tak Runway Park          22.8 C               30.7 C
Yuen Long Park               20.6 C               31.1 C
Tai Mei Tuk               22.0 C               30.2 C

Duration of sunshine (King's Park):              10.8 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 8.
 

Yesterday's (05 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 05 Oct
     2003copy right image | Important notices | Privacy policy Last revision date: <06 Oct 2018> 

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