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Bulletin issued at 18:02 HKT 15/Oct/2016

At 6 p.m. at the Hong Kong Observatory the air temperature was 28 degrees Celsius and the relative humidity 69 per cent.
During the past hour the mean UV Index recorded at King's Park was 0.1. The intensity of UV radiation was low.

The air temperatures at other places were:

King's Park 28 degrees;
Wong Chuk Hang 29 degrees;
Ta Kwu Ling 28 degrees;
Lau Fau Shan 28 degrees;
Tai Po 28 degrees;
Sha Tin 29 degrees;
Tuen Mun 28 degrees;
Tseung Kwan O 26 degrees;
Sai Kung 28 degrees;
Cheung Chau 27 degrees;
Chek Lap Kok 30 degrees;
Tsing Yi 29 degrees;
Shek Kong 28 degrees;
Tsuen Wan Ho Koon 26 degrees;
Tsuen Wan Shing Mun Valley 28 degrees;
Hong Kong Park 27 degrees;
Shau Kei Wan 27 degrees;
Kowloon City 28 degrees;
Happy Valley 29 degrees;
Wong Tai Sin 28 degrees;
Stanley 28 degrees;
Kwun Tong 28 degrees;
Sham Shui Po 29 degrees;
Kai Tak Runway Park 29 degrees;
Yuen Long Park 29 degrees.

Here is the information on Typhoon Sarika at 4 p.m.:
Location: 14.9 degrees north, 123.5 degrees east.


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 17:45 HKT 15/Oct/2016

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

The northeast monsoon is bringing generally fine weather to the coast of Guangdong.

At 4 p.m., Typhoon Sarika was centred about 270 kilometres east of Manila. It is forecast to move west-northwest at about 25 kilometres per hour towards Luzon.

Weather forecast for tonight and tomorrow

Cloudy periods overnight. Mainly fine during the day tomorrow. Temperatures will range between 25 and 31 degrees. Moderate northeasterly winds, fresh offshore and on high ground later.

Outlook : Winds will strengthen gradually with squally showers in the following couple of days.


(The above forecast period is valid up to 23:59 HKT tomorrow, 16/10/2016; 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 09:05 HKT 15/Oct/2016

STORM WARNING AREA: SCARBOROUGH.
GALE WARNING AREAS: BASHI AND BALINTANG.

GENERAL SITUATION AT 142100 UTC:
FOR DETAILS ON TYPHOON SARIKA (1621), PLEASE REFER TO THE 3-HRLY SHIPPING WARNINGS.

MARINE FORECAST FOR 24 HOURS FROM 150105 UTC:

HONG KONG= E TO NE 5-6. FINE. SEA 2-3 M. TEMP 30-25 C. =
KWANGTUNG= E TO NE 5-6. FINE. 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 5-6, 7-8 LATER. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS LATER. SEA 2-3, 4-6 M LATER. SWELL NE 2-3 M. =
PRATAS= E TO NE 5-6, 7 LATER. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS LATER. SEA 2-3 M, 4 M LATER. SWELL NE 2 M. =
BALINTANG= E TO NE 6-7, 8-9 LATER. DOWN TO 500 M IN FRQ HEAVY SQUALLY SHOWERS AND TS LATER. SEA 3-4 M, 6-8 M LATER. SWELL E TO NE 2-3 M. =
SCARBOROUGH= NE 6-7, CYCLONIC 10 LATER. DOWN TO 500 M IN FRQ HEAVY SQUALLY SHOWERS AND TS LATER. SEA 3-4 M, 12 M LATER. SWELL NE 2 M. =
PARACEL= E 4-5, NE 6 LATER. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL NE 2 M. =
TONKIN= E TO NE 5-6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-3 M. =
DANANG= E TO NE 4-5. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 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 16:30 HKT 15/Oct/2016

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 4:30 p.m. on 15 October 2016

    Warnings:
    Strong winds in all areas.

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

    At 4 p.m., Typhoon Sarika with maximum sustained winds of about 140 kilometres per hour near its centre was located at 14.9 degrees north, 123.5 degrees east. It is forecast to move west-northwest at about 25 kilometres per hour towards Luzon.

    Area forecasts for the next 24 hours

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

    Nan'ao and Shanwei:
    Northeast force 6 to 7.
    Rough seas.

    South of Hong Kong and Shangchuan Dao:
    Northeast force 5 to 6, occasionally force 7.
    Moderate to rough seas.

    Outlook for the next 48 hours
    East to northeasterly winds of force 6 to 7, occasionally force 8. Squally showers and thunderstorms.

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

    Waglan Island Wind east-northeast force 3
      Visibility 16 Kilometres

    Shantou Wind east force 1
      Visibility 30 Kilometres

    Dongsha Wind northeast force 4
      Visibility 10 Kilometres

    Huangmaozhou Wind northeast force 4

    Macau Wind north-northeast force 3
      Visibility 9 Kilometres

    Xisha Wind northeast force 2
      Visibility 30 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
  • Tidal Information

    • WEATHER FORECAST FOR LOCAL AVIATION
    Traditional Chinese Simplified Chinese

    Weather Forecast for Local Aviation

    Bulletin issued at 17:30 HKT 15/OCT/2016
    (Next update at 01:30 HKT 16/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 BRINGING GENERALLY FINE
     WEATHER TO THE COAST OF GUANGDONG. AT 4 P.M.,
     SARIKA CENTRED NEAR 14.9 DEGREES NORTH, 123.5
     DEGREES EAST IS FORECAST TO MOVE WEST-NORTHWEST
     AT ABOUT 12 KNOTS TOWARDS LUZON.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  040/10
       OFFSHORE:  060/15-20, OCNL 25                   30-26
   B.   2000 FT:  060/15-20                            22
   C.   5000 FT:  060/15-20                            17
   D.  10000 FT:  060/15                               11
   E.  18000 FT:  060/15                               MS4
   F.  24000 FT:  020/10                               MS13
   G.  30000 FT:  100/10                               MS28
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      4400 - 5000 FT
   I. WEATHER       : 
      CLOUDY PERIODS OVERNIGHT.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 3000 FT SCT 5000 FT
   K. VISIBILITY    : 9 KM.
   L. 0 DEG. C LEVEL: 17000 FT      10 DEG. C LEVEL(S) : 10200 FT
   M. TURBULENCE    : OCNL  MOD TO SEV
   N. SEA STATE     : 2.0-3.0 M     SEA TEMPERATURE    : 28 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE NORTHEASTERLY WINDS, FRESH OFFSHORE.
     MAINLY FINE DURING THE DAY TOMORROW.=

    ===================================================================
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 13:33 HKT on 15 Oct 16

    VHHK SIGMET 1 VALID 150533/150930 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N1800 E11506 - N1642 E11400 - N1742 E11306 - N1842 E11424 - N1800 E11506 TOP FL420 MOV SW 15KT 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.

    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
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    Severe Weather Information Centre

    Bulletin issued at 18:31 HKT 15/Oct/2016


    Tropical Cyclone Warning

    At 150900 UTC, Typhoon Sarika (1621) with central pressure 955 hectopascals was centred within 60 nautical miles of one five point zero degrees north (15.0 N) one two three point four degrees east (123.4 E) and is forecast to move west-northwest at about 14 knots for the next 24 hours.

    Maximum winds near the centre are estimated to be 80 knots.

    Radius of over 33 knot winds 120 nautical miles over northern semicircle, 90 nautical miles elsewhere.
    Radius of over 47 knot winds 45 nautical miles.
    Radius of over 63 knot winds 30 nautical miles.
    Radius of over 2 metre waves 180 nautical miles over northern semicircle, 120 nautical miles elsewhere.

    Forecast position and intensity at 160900 UTC
    One six point five degrees north (16.5 N)
    One one seven point nine degrees east (117.9 E)
    Maximum winds 65 knots.

    Forecast position and intensity at 170900 UTC
    One seven point one degrees north (17.1 N)
    One one two point eight degrees east (112.8 E)
    Maximum winds 85 knots.

    Forecast position and intensity at 180900 UTC
    One eight point four degrees north (18.4 N)
    One zero nine point three degrees east (109.3 E)
    Maximum winds 85 knots.

    Forecast position and intensity at 190900 UTC
    One nine point six degrees north (19.6 N)
    One zero six point five degrees east (106.5 E)
    Maximum winds 60 knots.

    Forecast position and intensity at 200900 UTC
    Two zero point six degrees north (20.6 N)
    One zero four point six degrees east (104.6 E)
    Maximum winds 35 knots.



    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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