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Bulletin issued at 06:02 HKT 15/Oct/2016

At 6 a.m. at the Hong Kong Observatory the air temperature was 25 degrees Celsius and the relative humidity 82 per cent.

The air temperatures at other places were:

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


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


Climatological Information for 15 Oct

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


Local Weather Forecast
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Bulletin updated at 06:30 HKT 15/Oct/2016

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

The northeast monsoon is affecting the coast of Guangdong.

Severe Tropical Storm Sarika has intensified into a typhoon. At 6 a.m., Sarika was centred about 400 kilometres east of Manila. It is forecast to move west-northwest at about 18 kilometres per hour towards Luzon.

Weather forecast for today

Cloudy periods at first. Mainly fine during the day with a maximum temperature of around 30 degrees. Moderate to fresh east to northeasterly winds.

Outlook : Mainly fine tomorrow. Becoming cloudy on Monday. Windier with squally showers on Tuesday and Wednesday.


(The above forecast period is valid up to 23:59 HKT today, 15/10/2016; 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 14/Oct/2016

N0 WARNING.

GENERAL SITUATION AT 140900 UTC:
A NORTHEAST MONSOON IS GENERALLY AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 141300 UTC:

HONG KONG= E TO NE 5-6. CLD. SEA 2-3 M. TEMP 25-30 C. =
KWANGTUNG= E TO NE 5-6. CLD. SEA 2-3 M. SWELL NE 2 M. =
TAIWAN STRAIT= NE 6-7. CLD. SEA 3-4 M. SWELL NE 2 M. =
BASHI= E TO NE 6-7. ISOL SHOWERS AND SQUALLY TS. SEA 3-4 M. SWELL NE 2 M. =
PRATAS= E TO NE 5-6. ISOL SHOWERS. SEA 2-3 M. SWELL NE 2 M. =
BALINTANG= E TO NE 6-7. ISOL SHOWERS AND SQUALLY TS. SEA 3-4 M. SWELL NE 2 M. =
SCARBOROUGH= E TO NE 5-6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL NE 2 M. =
PARACEL= E 4-5, OCNL 6. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 2 M. SWELL NE 2 M. =
TONKIN= E TO NE 5-6. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 2-3 M. =
DANANG= E 4-5, OCNL 6. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 2 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 06:30 HKT 15/Oct/2016

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 6:30 a.m. on 15 October 2016

    Warnings:
    Strong winds in all areas.

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

    Severe Tropical Storm Sarika has intensified into a Typhoon. At 6 a.m., Sarika with maximum sustained winds of about 120 kilometres per hour near its centre was located at 14.2 degrees north, 124.7 degrees east. It is forecast to move west-northwest at about 18 kilometres per hour towards Luzon.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East to northeast force 5 to 6.
    Moderate to rough seas.

    Nan'ao, Shanwei, South of Hong Kong and Shangchuan Dao:
    East to northeast force 5 to 6.
    Moderate to rough seas.

    Outlook for the next 48 hours
    East to northeasterly winds of force 5 to 6, up to force 8 later. Isolated squally showers and thunderstorms.

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

    Waglan Island Wind northeast force 4
      Visibility 10 Kilometres

    Shantou Wind east-northeast force 1
      Visibility 10 Kilometres

    Dongsha Wind northeast force 4
      Visibility 10 Kilometres

    Huangmaozhou Wind east-northeast force 6

    Macau Wind north force 3
      Visibility 8 Kilometres

    Xisha Wind east-southeast force 3
      Visibility 7 Kilometres in mist

  • Explanation of Seas or Sea Waves
  • Explanation of Swells
  • Descriptive Terms of Wind Speeds
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  • Map showing forecast areas
  • Tidal Information

    • WEATHER FORECAST FOR LOCAL AVIATION
    Traditional Chinese Simplified Chinese

    Weather Forecast for Local Aviation

    Bulletin issued at 01:30 HKT 15/OCT/2016
    (Next update at 9:00-9:30 HKT 15/OCT/2016)
    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 COASTAL
     AREAS OF GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  050/10-15
       OFFSHORE:  080/20-25                            25-32
   B.   2000 FT:  080/15-20, OCNL 25                   20
   C.   5000 FT:  090/15                               18
   D.  10000 FT:  110/10                               11
   E.  18000 FT:  080/10                               MS4
   F.  24000 FT:  060/15                               MS13
   G.  30000 FT:  320/30                               MS29
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      4400 - 4800 FT
   I. WEATHER       : 
      CLOUDY PERIODS OVERNIGHT.  MAINLY FINE DURING
      THE DAY.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2200 FT SCT 4000 FT
   K. VISIBILITY    : 10 KM.
   L. 0 DEG. C LEVEL: 17000 FT      10 DEG. C LEVEL(S) : 10900 FT
   M. TURBULENCE    : MOD TO SEV OFFSHORE AND NEAR HILLS
   N. SEA STATE     : 3.0-4.0 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH EAST TO NORTHEASTERLY WINDS,
     OCCASIONALLY STRONG OFFSHORE AND ON HIGH GROUND.
     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 03:35 HKT on 15 Oct 16

    VHHK SIGMET 5 VALID 141935/142335 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N1742 E11448 - N1642 E11400 - N1900 E11154 - N1842 E11400 - N1742 E11448 TOP FL400 MOV W 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.

    The latest report on Tropical Cyclone Aere broadcast by Dr LEE TSZ CHEUNG , Senior Scientific Officer of the Hong Kong Observatory at 6:18 p.m. on 08 Oct 2016.
    Listen Listen

    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
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    Severe Weather Information Centre

    Bulletin issued at 06:31 HKT 15/Oct/2016


    Tropical Cyclone Warning

    Typhoon Sarika (1621) has entered the area of responsibility of the Hong Kong Observatory.

    Severe Tropical Storm Sarika (1621) has intensified into a Typhoon with central pressure 970 hectopascals. At 142100 UTC, it was centred within 60 nautical miles of one four point two degrees north (14.2 N) one two four point nine degrees east (124.9 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 65 knots.

    Radius of over 33 knot winds 90 nautical miles.
    Radius of over 47 knot winds 45 nautical miles.
    Radius of over 63 knot winds 30 nautical miles.
    Radius of over 2 metre waves 150 nautical miles.

    Forecast position and intensity at 152100 UTC
    One six point zero degrees north (16.0 N)
    One two one point zero degrees east (121.0 E)
    Maximum winds 75 knots.

    Forecast position and intensity at 162100 UTC
    One six point six degrees north (16.6 N)
    One one five point five degrees east (115.5 E)
    Maximum winds 75 knots.

    Forecast position and intensity at 172100 UTC
    One seven point four degrees north (17.4 N)
    One one one point four degrees east (111.4 E)
    Maximum winds 85 knots.

    Forecast position and intensity at 182100 UTC
    One nine point zero degrees north (19.0 N)
    One zero seven point nine degrees east (107.9 E)
    Maximum winds 55 knots.

    Forecast position and intensity at 192100 UTC
    Two zero point two degrees north (20.2 N)
    One zero five point seven degrees east (105.7 E)
    Maximum winds 40 knots.

    Bulletin issued at 09:30 HKT 14/Oct/2016


    Tropical Cyclone Warning

    At 140000 UTC,the tropical depression over central Vietnam with central pressure 1000 hectopascals was centred within 90 nautical miles of one six point eight degrees north (16.8 N) one zero six point seven degrees east (106.7 E) and is forecast to move west at about 8 knots for the next 24 hours.

    Maximum winds near the centre are estimated to be 25 knots.

    Radius of over 2 metre waves 120 nautical miles over northern semicircle, 90 nautical miles elsewhere.

    No further warnings on this Tropical Depression will be issued by the Hong Kong Observatory unless re-intensification takes place.

    Forecast position and intensity at 150000 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 15/Oct/2016 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     29.9 C
Minimum Air Temperature                     25.0 C
Grass Minimum Temperature                   25.1 C
Relative Humidity                        60 - 82 Percent
Rainfall                                      Trace 
Total rainfall since 1st January          2395.2 mm
Against an average of                     2292.4 mm

Other Stations                Min                  Max
King's Park                  24.1 C               30.1 C
Wong Chuk Hang               24.6 C               29.9 C
Ta Kwu Ling                  23.1 C               30.8 C
Lau Fau Shan                 23.1 C               29.8 C
Tai Po                       24.2 C               28.3 C
Sha Tin                      23.9 C               29.9 C
Tuen Mun                     24.0 C               31.3 C
Tseung Kwan O                23.6 C               30.7 C
Sai Kung                     23.9 C               28.6 C
Cheung Chau                  24.2 C               28.9 C
Chek Lap Kok                 24.9 C               32.3 C
Tsing Yi                     24.8 C               30.8 C
Shek Kong                    23.3 C               31.6 C
Tsuen Wan Ho Koon            23.4 C               30.5 C
Tsuen Wan Shing Mun Valley   24.0 C               30.8 C
Hong Kong Park               24.8 C               30.1 C
Shau Kei Wan                 23.9 C               29.6 C
Kowloon City                 23.8 C               31.3 C
Happy Valley                 25.1 C               30.3 C
Wong Tai Sin                 24.3 C               31.7 C
Stanley                      24.5 C               28.6 C
Kwun Tong                    23.9 C               29.8 C
Sham Shui Po                 24.2 C               30.8 C
Kai Tak Runway Park          24.7 C               30.2 C
Yuen Long Park               23.9 C               31.8 C

Duration of sunshine (King's Park):              9.0 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 9.
 

Yesterday's (14 Oct 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                               0.10
Yuen Ng Fan                         0.12
Tai Mei Tuk                         0.13
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 14 Oct
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