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Automatic Regional Weather Forecast in Hong Kong & Pearl River Delta Region

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9-day Weather Forecast | UV Index Forecast
Weather Information for South China Coastal Waters

Bulletin issued at 18:11 HKT 12/Sep/2016

At 6 p.m. at the Hong Kong Observatory the air temperature was 30 degrees Celsius and the relative humidity 78 per cent.
During the past hour the mean UV Index recorded at King's Park was 0.4. The intensity of UV radiation was low.

Tropical Cyclone Meranti is expected to edge closer to the coast of southern China mid-week this week, bringing windy weather and squally showers to the region during the Mid-Autumn Festival and the day after. There will also be swells. Please note that the change in weather may affect the outdoor activities during the Mid-Autumn Festival and the day after. Please refer to the latest weather forecast issued by the Observatory.

The air temperatures at other places were:

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

Between 4:45 and 5:45 p.m., the rainfall recorded in various regions were:

Yuen Long 0 to 5 mm.

Here is the information on Tropical Depression at 4 p.m.:
Location: 14.5 degrees north, 110.7 degrees east.


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


Climatological Information for 12 Sep

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


Local Weather Forecast
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Local Weather Forecast

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 18:15 HKT 12/Sep/2016

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

The anticyclone over southern China is bringing generally fine weather to the region. Locally, temperatures over many places rose to around 33 degrees in the afternoon.

Severe Typhoon Meranti has intensified into a super typhoon. At 4 p.m., Meranti was centred about 1000 kilometres east-southeast of Gaoxiong. It is forecast to move west-northwest at about 26 kilometres per hour in the general direction of the seas east of Luzon to Taiwan. Meanwhile, the tropical depression over the central part of the South China Sea was centred about 320 kilometres east-southeast of Da Nang. It is forecast to move west-northwest at about 18 kilometres per hour towards the central part of Vietnam.

Weather forecast for tonight and tomorrow

Mainly fine apart from isolated showers. One or two thunderstorms later tomorrow. Very hot during the day tomorrow. Temperatures will range between 27 and 33 degrees. Moderate easterly winds, occasionally fresh offshore overnight.

Outlook : Very hot on Wednesday. Windy with squally showers during the Mid-Autumn Festival and the day after.


(The above forecast period is valid up to 23:59 HKT tomorrow, 13/09/2016; Regular update at : around 45 minutes past each hour, 16:15 HKT and 23:15 HKT)

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MARINE FORECAST
Traditional Chinese Simplified Chinese

Marine Forecast

Weather Information for the Marine Community

Bulletin issued at 09:20 HKT 12/Sep/2016

N0 WARNING.

GENERAL SITUATION AT 112100 UTC:
LOW 1004 HPA 13N 113E WNW SLOWLY INTSF.

MARINE FORECAST FOR 24 HOURS FROM 120120 UTC:

HONG KONG= E 4-5. ISOL SHOWERS. SEA UP TO 2 M. TEMP 32-26 C. =
KWANGTUNG= E 4-5, 6 IN W LATER. ISOL SHOWERS AND TS IN W. SEA UP TO 3 M IN W LATER. =
TAIWAN STRAIT= NE 5-6, OCNL 7. ISOL SHOWERS. SEA 3 M. =
BASHI= E TO NE 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. SWELL E TO NE 2 M. =
PRATAS= E TO NE 4-5. ISOL SHOWERS. SEA UP TO 2 M. =
BALINTANG= E TO NE 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. SWELL E TO NE 2 M. =
SCARBOROUGH= SE 4, NE 4-5 LATER. ISOL SHOWERS. SEA UP TO 2 M. =
PARACEL= E 5-6, BEC 7. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 2-3 M, BEC 4 M. SWELL E 2 M. =
TONKIN= E TO NE 5-6, BEC 7. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 2-3 M, BEC 4 M. =
DANANG= E TO NE 6-7. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL E 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.


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    • 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 16:30 HKT 12/Sep/2016

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 4:30 p.m. on 12 September 2016

    Warnings:
    Strong winds in Shangchuan Dao.

    Weather Situation:
    At 4 p.m., the tropical depression over the central part of the South China Sea with maximum sustained winds of about 55 kilometres per hour near its centre was located at 14.5 degrees north, 110.7 degrees east, it is forecast to move west-northwest at about 18 kilometres per hour towards the central part of Vietnam. Severe Typhoon Meranti has intensified into a super typhoon. At 4 p.m., Meranti with maximum sustained winds of about 185 kilometres per hour near its centre was located at 18.6 degrees north, 128.9 degrees east, it is forecast to move west-northwest at about 26 kilometres per hour in the general direction of the seas east of Luzon to Taiwan.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East force 4 to 5.
    Isolated showers, one or two thunderstorms later.
    Moderate seas.

    Nan'ao, Shanwei and South of Hong Kong:
    East to northeast force 4 to 5.
    Moderate seas.

    Shangchuan Dao:
    East to northeast force 4 to 5, occasionally force 6 later.
    Isolated showers and thunderstorms.
    Moderate to rough seas.

    Outlook for the next 48 hours
    Easterly winds of force 5 to 6, becoming north to northwesterly winds of force 7 to 8 later, cyclonic winds up to force 12 in east. Squally showers and thunderstorms.

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

    Waglan Island Wind east force 2
      Visibility 32 Kilometres

    Shantou Wind southeast force 2
      Visibility 30 Kilometres

    Dongsha Wind east force 3
      Visibility 10 Kilometres

    Huangmaozhou Wind east force 4

    Macau Wind east force 1
      Visibility 16 Kilometres

    Xisha Wind east force 3
      Visibility 29 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
    Traditional Chinese Simplified Chinese

    Weather Forecast for Local Aviation

    Bulletin issued at 17:30 HKT 12/SEP/2016
    (Next update at 01:30 HKT 13/SEP/2016)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AN EASTERLY AIRSTREAM IS AFFECTING THE SOUTH
     CHINA COASTAL AREAS.
     AT 4 P.M., THE TROPICAL DEPRESSION OVER THE
     CENTRAL PART OF THE SOUTH CHINA SEA WAS CENTRED
     NEAR 14.5 DEGREES NORTH, 110.7 DEGREES EAST. IT
     IS FORECAST TO MOVE WEST-NORTHWEST AT ABOUT 10
     KNOTS TOWARDS THE CENTRAL PART OF VIETNAM.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  090/10-15
                  TEMPO VRB/20G30 IN TS
       OFFSHORE:  090/15-20                            31-27
   B.   2000 FT:  100/15-20                            21
   C.   5000 FT:  090/15-20                            19
   D.  10000 FT:  090/15                               13
   E.  18000 FT:  110/15                               MS2
   F.  24000 FT:  130/15                               MS14
   G.  30000 FT:  150/20                               MS26
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY FINE.  ISOLATED SHOWERS AND
      THUNDERSTORMS AT FIRST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT  SCT 3000 FT.
      TEMPO FEW CB 1500 FT SCT 2500 FT BKN 5000 FT.
      
   K. VISIBILITY    : 9 KM.  TEMPO 4000 M IN SHOWERS. 
                      TEMPO 2000 M IN TS.
   L. 0 DEG. C LEVEL: 17000 FT      10 DEG. C LEVEL(S) : 11800 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS.
                      MOD OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 1.5-2.0 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EASTERLY WINDS, OCCASIONALLY FRESH
     OFFSHORE AT FIRST.  MAINLY FINE APART FROM
     ISOLATED SHOWERS.=

    ===================================================================
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 15:45 HKT on 12 Sep 16

    VHHK SIGMET 2 VALID 120745/121145 VHHH- VHHK HONG KONG FIR EMBD TS FCST S OF N2018 AND W OF E11354 TOP FL400 STNR 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

    Tropical Cyclone Warning |  Track and Positions of Tropical Cyclones
    Current Weather |  Local Weather Forecast |  9-day Weather Forecast
    South China Coastal Waters |  Marine Forecast
    Severe Weather Information Centre

    Bulletin issued at 18:30 HKT 12/Sep/2016


    Tropical Cyclone Warning

    At 120900 UTC, the tropical depression over the central part of South China Sea with central pressure 998 hectopascals was centred within 90 nautical miles of one four point seven degrees north (14.7 N) one one zero point five degrees east (110.5 E) and is forecast to move west-northwest at about 10 knots for the next 24 hours.

    Maximum winds near the centre are estimated to be 30 knots.

    Radius of over 2 metre waves 120 nautical miles.

    Forecast position and intensity at 130900 UTC
    One six point one degrees north (16.1 N)
    One zero six point two degrees east (106.2 E)
    Maximum winds 30 knots.

    Forecast position and intensity at 140900 UTC
    Dissipated over land.



    The Hong Kong Observatory's tropical cyclone warnings for shipping are issued about one and a half hours after the time of observation. They incorporate additional information derived from surface and upper-air data and may therefore be slightly different from the real-time satellite or radar-based positions given in the hourly bulletins for public.

    While the forecast positions and track indicate the most likely future path of the tropical cyclone, they may deviate from the actual path taken by the storm.

    Tropical Cyclone Track
    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 12/Sep/2016 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     31.6 C
Minimum Air Temperature                     25.9 C
Grass Minimum Temperature                   24.7 C
Relative Humidity                        73 - 96 Percent
Rainfall                                     6.6 mm 
Total rainfall since 1st January          2208.8 mm
Against an average of                     2031.2 mm

Other Stations                Min                  Max
King's Park                  25.0 C               31.6 C
Ta Kwu Ling                  24.1 C               31.9 C
Lau Fau Shan                 24.1 C               31.2 C
Tai Po                       24.3 C               30.1 C
Sha Tin                      23.8 C               30.9 C
Tuen Mun                     24.9 C               31.5 C
Tseung Kwan O                24.4 C               31.6 C
Sai Kung                     24.5 C               29.9 C
Cheung Chau                  24.8 C               29.4 C
Chek Lap Kok                 26.0 C               32.5 C
Tsing Yi                     24.8 C               32.2 C
Shek Kong                    23.7 C               33.3 C
Tsuen Wan Ho Koon            24.0 C               30.0 C
Tsuen Wan Shing Mun Valley   24.2 C               32.4 C
Hong Kong Park               24.8 C               30.9 C
Shau Kei Wan                 25.3 C               30.2 C
Kowloon City                 25.3 C               32.6 C
Happy Valley                 24.7 C               33.0 C
Wong Tai Sin                 24.7 C               33.3 C
Stanley                      25.6 C               31.4 C
Kwun Tong                    25.4 C               32.0 C
Sham Shui Po                 25.6 C               32.7 C
Kai Tak Runway Park          26.0 C               30.7 C
Yuen Long Park               23.9 C               32.4 C

Duration of sunshine (King's Park):              6.4 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 12.
 

Yesterday's (11 Sep 2016) 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                           0.08
Tap Mun                             0.09
Kat O                               0.09
Yuen Ng Fan                         0.11
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 during
the period 1987-2015, the background ambient gamma radiation
levels may vary between 0.06 and 0.30 microsievert per hour.

    2. The extent of health effects to a person as a result of
exposure to radiation is expressed by a physical quantity
called equivalent dose, in unit of sievert.  Protective
action may be required if there is an increase in the
ambient gamma dose rate above background such that the total
additional dose is expected to exceed 5000 microsieverts in
a relatively short period of time. For example, a dose of
5000 microsieverts may be reached when the ambient gamma
dose rate is 1000 microsieverts per hour (several thousand
times above background) and lasts for 5 hours.

    3. The readings of ambient gamma radiation level from
instrument are expressed in unit of gray, which is
numerically equal to the gamma dose expressed in sievert.
    Climatological Information for 11 Sep
     2003copy right image | Important notices | Privacy policy Last revision date: <12 Sep 2016> 

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