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Bulletin issued at 13:02 HKT 05/Oct/2018

At 1 p.m. at the Hong Kong Observatory the air temperature was 30 degrees Celsius and the relative humidity 35 per cent.
During the past hour the mean UV Index recorded at King's Park was 8. The intensity of UV radiation was very 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 28 degrees;
Wong Chuk Hang 29 degrees;
Ta Kwu Ling 29 degrees;
Lau Fau Shan 28 degrees;
Tai Po 28 degrees;
Sha Tin 29 degrees;
Tuen Mun 29 degrees;
Tseung Kwan O 30 degrees;
Sai Kung 27 degrees;
Cheung Chau 31 degrees;
Chek Lap Kok 30 degrees;
Tsing Yi 29 degrees;
Shek Kong 30 degrees;
Tsuen Wan Ho Koon 28 degrees;
Tsuen Wan Shing Mun Valley 30 degrees;
Hong Kong Park 29 degrees;
Shau Kei Wan 29 degrees;
Kowloon City 29 degrees;
Happy Valley 30 degrees;
Wong Tai Sin 30 degrees;
Stanley 30 degrees;
Kwun Tong 29 degrees;
Sham Shui Po 30 degrees;
Kai Tak Runway Park 30 degrees;
Yuen Long Park 30 degrees;
Tai Mei Tuk 30 degrees.


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


Climatological Information for 5 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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UV Index Forecast |  Weather Information for South China Coastal Waters

Bulletin updated at 12:45 HKT 05/Oct/2018

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

The northeast monsoon is bringing fine and dry weather to Guangdong. Locally, the relative humidity over the territory generally fell to 40 per cent or below around noon.

At noon, Typhoon Kong-rey was centred about 520 kilometres south of Jeju. It is forecast to move north at about 30 kilometres per hour across the East China Sea towards the vicinity of the southern part of the Korean Peninsula.

Weather forecast for this afternoon and tonight

Sunny and very dry. Moderate northerly winds, occasionally fresh.

Outlook : Remaining fine and very dry tomorrow. Sunny periods in the following 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, 05/10/2018; 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 05/Oct/2018

GALE WARNING AREAS: TAIWAN STRAIT AND BASHI.

GENERAL SITUATION AT 042100 UTC:
THE NORTHEAST MONSOON IS GENERALLY AFFECTING THE FORECAST AREAS. TYPHOON KONG-REY (1825) 970 HPA 27N 126E NNW 14KT INTST NC.

MARINE FORECAST FOR 24 HOURS FROM 050100 UTC:

HONG KONG= N 4-5, OCNL 6. FINE. SEA UP TO 3 M. SWELL NE UP TO 2 M. TEMP 30-23 C. =
KWANGTUNG= N 6-7. FINE. SEA 3-4 M. SWELL N TO NE 2-3 M. =
TAIWAN STRAIT= N 6-7, OCNL 8. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA UP TO 6 M. SWELL N TO NE 3 M. =
BASHI= N TO NW 6-7, OCNL 8. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA UP TO 6 M. SWELL N TO NE 3-5 M. =
PRATAS= N 6-7. FINE. SEA 3-4 M. SWELL N TO NE 3 M. =
BALINTANG= N TO NW 6-7. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL N TO NE 3-5 M. =
SCARBOROUGH= N 5-6. FINE. SEA 2-3 M. SWELL N TO NE 3 M. =
PARACEL= N 5-6. FINE. SEA 2-3 M. SWELL NE 2-3 M. =
TONKIN= N 5-6. ISOL SHOWERS. SEA 2-3 M. SWELL NE UP TO 2 M. =
DANANG= N 5-6. ISOL SHOWERS. SEA 2-3 M. SWELL NE 2 M, 3 M LATER. =
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 05/Oct/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 12:30 p.m. on 05 October 2018

    Warnings:
    Strong winds in all areas.

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

    At noon, Typhoon Kong-rey with maximum sustained winds of about 120 kilometres per hour near its centre was located near 28.9 degrees north, 125.5 degrees east. It is forecast to move north at about 30 kilometres per hour across the East China Sea towards the vicinity of the southern part of the Korean Peninsula.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    North force 5 to 6, occasionally force 7.
    Moderate to rough seas.

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

    Shanwei and South of Hong Kong:
    North force 5 to 6, occasionally force 7.
    Moderate to rough seas.

    Shangchuan Dao:
    North force 5 to 6.
    Moderate to rough seas.

    Outlook for the next 48 hours
    North to northeasterly winds of force 5 to 6, becoming easterly winds of force 6 later.

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

    Waglan Island Wind north force 5
      Visibility 29 Kilometres

    Shantou Wind west force 2
      Visibility 30 Kilometres

    Dongsha Wind north force 1
      Visibility 10 Kilometres

    Huangmaozhou Wind north-northwest force 4

    Macau Wind north-northeast force 3
      Visibility 24 Kilometres

    Xisha Wind northeast force 2
      Visibility 19 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 05/OCT/2018
    (Next update at 17:30 HKT 05/OCT/2018)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB.
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:  360/10-15
       OFFSHORE:  360/15-20, OCNL 25                   31-26
   B.   2000 FT:  010/15-20, OCNL 25                   19
   C.   5000 FT:  010/20                               17
   D.  10000 FT:  320/25                               11
   E.  18000 FT:  310/25                               MS2
   F.  24000 FT:  360/15                               MS12
   G.  30000 FT:  340/15                               MS25
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      3700-4000 FT
   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) : 10400 FT
   M. TURBULENCE    : MOD TO SEV OFFSHORE AND NEAR HILLS
   N. SEA STATE     : 2.0-2.5 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE NORTHERLY WINDS. 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 05/Oct/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     30.5 C
Minimum Air Temperature                     24.2 C
Grass Minimum Temperature                   22.3 C
Relative Humidity                        37 - 76 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January          1976.2 mm
Against an average of                     2248.4 mm

Other Stations                Min                  Max
King's Park                  23.2 C               30.1 C
Wong Chuk Hang               21.0 C               30.3 C
Ta Kwu Ling                  19.2 C               31.2 C
Lau Fau Shan                 21.7 C               30.0 C
Tai Po                       21.6 C               29.4 C
Sha Tin                      21.0 C               30.6 C
Tuen Mun                     21.9 C               31.1 C
Tseung Kwan O                20.5 C               31.1 C
Sai Kung                     22.7 C               29.4 C
Cheung Chau                  21.9 C               32.5 C
Chek Lap Kok                 23.3 C               30.9 C
Tsing Yi                     22.3 C               31.1 C
Shek Kong                    20.2 C               31.9 C
Tsuen Wan Ho Koon            20.4 C               29.7 C
Tsuen Wan Shing Mun Valley   20.3 C               32.0 C
Hong Kong Park               23.0 C               30.9 C
Shau Kei Wan                 23.5 C               31.2 C
Kowloon City                 23.1 C               31.0 C
Happy Valley                 22.2 C               31.9 C
Wong Tai Sin                 22.5 C               31.4 C
Stanley                      22.8 C               31.3 C
Kwun Tong                    22.4 C               31.1 C
Sham Shui Po                 22.5 C               31.6 C
Kai Tak Runway Park          23.4 C               31.0 C
Yuen Long Park               20.4 C               31.6 C
Tai Mei Tuk               22.6 C               30.2 C

Duration of sunshine (King's Park):              10.7 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 (04 Oct 2018) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.09 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                          0.09
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 04 Oct
     2003copy right image | Important notices | Privacy policy Last revision date: <05 Oct 2018> 

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