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Bulletin issued at 17:02 HKT 16/Oct/2018

At 5 p.m. at the Hong Kong Observatory the air temperature was 24 degrees Celsius and the relative humidity 95 per cent.
During the past hour the mean UV Index recorded at King's Park was 0.0. The intensity of UV radiation was low.

The air temperatures at other places were:

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

Between 3:45 and 4:45 p.m., the rainfall recorded in various regions were:

Eastern District 0 to 1 mm;
Islands District 0 to 1 mm;
Yuen Long 0 to 1 mm;
Sai Kung 0 to 1 mm;
Tuen Mun 0 to 1 mm;
Southern District 0 to 1 mm;
Yau Tsim Mong 1 mm.


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


Climatological Information for 16 Oct

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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Bulletin updated at 16:45 HKT 16/Oct/2018

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

The northeast monsoon is bringing rainy and slightly cooler weather to the coast of Guangdong.

Weather forecast for tonight and tomorrow

Mainly cloudy with a few rain patches and relatively low visibility. It will be slightly cooler. Temperatures will range between 21 and 25 degrees. Moderate north to northeasterly winds.

Outlook : Still a few rain patches on Thursday. The weather will improve gradually in the following couple of days, but it will be windier.


(The above forecast period is valid up to 23:59 HKT tomorrow, 17/10/2018; 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 09:35 HKT 16/Oct/2018

N0 WARNING.

GENERAL SITUATION AT 152100 UTC:
COLD FRONT 20N 108E 22N 113E 24N 120E S SLOWLY.

MARINE FORECAST FOR 24 HOURS FROM 160135 UTC:

HONG KONG= N TO NE 4-5. 4000 M IN ISOL SHOWERS AND SQUALLY TS. SEA UP TO 2 M. TEMP 26-21 C. =
KWANGTUNG= NE 5, OCNL 6. 4000 M IN ISOL SHOWERS AND SQUALLY TS. SEA 2 M. SWELL E TO NE 2 M. =
TAIWAN STRAIT= NE 5-6, 7 LATER. 4000 M IN ISOL SHOWERS AND SQUALLY TS. SEA 2 M, 3-4 M LATER. SWELL NE 2-3 M. =
BASHI= E TO NE 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. SWELL NE 2 M. =
PRATAS= E TO NE 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. SWELL NE 2 M. =
BALINTANG= E TO NE 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. SWELL NE 2 M. =
SCARBOROUGH= NE 4-5. 4000 M IN ISOL SHOWERS AND SQUALLY TS. SEA UP TO 2 M. SWELL NE 2 M. =
PARACEL= E 4-5. ISOL SHOWERS. SEA UP TO 2 M. SWELL E TO NE 2 M. =
TONKIN= NE 4-5. 4000 M IN MIST PATCHES. ISOL SHOWERS AND SQUALLY TS. SEA UP TO 2 M. =
DANANG= E TO NE 4-5. 4000 M IN ISOL SHOWERS AND SQUALLY TS. SEA UP TO 2 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.


  • Map showing the 10 forecast areas
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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 16/Oct/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 4:30 p.m. on 16 October 2018

    Warnings:
    Strong winds in Nan'ao, Shanwei, south of Hong Kong and Shangchuan Dao.

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

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    North to northeast force 4 to 5.
    A few rain patches. Visibility relatively low in some areas.
    Moderate seas.

    Nan'ao and Shanwei:
    Northeast force 5 to 6, up to force 7 later.
    Moderate to rough seas.

    South of Hong Kong and Shangchuan Dao:
    Northeast force 4 to 5, up to force 6 later.
    Moderate seas, becoming rough later.

    Outlook for the next 48 hours
    East to northeasterly winds of force 6 to 7. Isolated showers and thunderstorms.

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

    Waglan Island Wind north-northeast force 3
      Visibility 3900 Metres

    Shantou Wind west force 1
      Visibility 4900 Metres in mist

    Dongsha Wind north-northeast force 2
      Visibility 10 Kilometres

    Huangmaozhou Wind north-northwest force 4

    Macau Wind north-northeast force 3
      Visibility 5000 Metres

    Xisha Wind east-northeast force 2
      Visibility 30 Kilometres

  • Explanation of Seas or Sea Waves
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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 17:30 HKT 16/OCT/2018
    (Next update at 01:30 HKT 17/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 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  020/10
       OFFSHORE:  020/10-15                            23-21
   B.   2000 FT:  020/10-15                            19
   C.   5000 FT:  260/5                                17
   D.  10000 FT:  280/15                               9
   E.  18000 FT:  270/30                               MS4
   F.  24000 FT:  280/40                               MS16
   G.  30000 FT:  280/45                               MS28
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      CLOUDY WITH A FEW RAIN PATCHES. LOCALISED MIST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1000 FT  SCT 2000 FT  BKN 6000 FT
   K. VISIBILITY    : 7 KM.  TEMPO 2500 M IN RAIN/MIST.
   L. 0 DEG. C LEVEL: 15500 FT      10 DEG. C LEVEL(S) : 9600 FT
   M. TURBULENCE    : NIL
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE NORTH TO NORTHEASTERLY WINDS. MAINLY
     CLOUDY WITH A FEW RAIN PATCHES. LOCALISED MIST.=

    ===================================================================
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 02:40 HKT on 16 Oct 18

    VHHK SIGMET 1 VALID 151840/152240 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2130 E11148 - N2200 E11330 - N2112 E11342 - N2042 E11212 - N2130 E11148 TOP FL380 MOV S 05KT 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 16/Oct/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     27.9 C
Minimum Air Temperature                     24.3 C
Grass Minimum Temperature                   23.4 C
Relative Humidity                        74 - 97 Percent
Rainfall                                    31.4 mm 
Total rainfall since 1st January          2054.3 mm
Against an average of                     2300.6 mm

Other Stations                Min                  Max
King's Park                  23.6 C               27.9 C
Wong Chuk Hang               24.4 C               28.9 C
Ta Kwu Ling                  23.8 C               28.3 C
Lau Fau Shan                 22.9 C               30.8 C
Tai Po                       23.4 C               26.1 C
Sha Tin                      23.7 C               26.8 C
Tuen Mun                     24.1 C               28.6 C
Tseung Kwan O                23.6 C               25.4 C
Sai Kung                     24.3 C               26.1 C
Cheung Chau                  24.1 C               30.3 C
Chek Lap Kok                 25.2 C               31.0 C
Tsing Yi                     24.2 C               28.1 C
Shek Kong                    22.8 C               28.9 C
Tsuen Wan Ho Koon            22.3 C               27.0 C
Tsuen Wan Shing Mun Valley   22.9 C               27.8 C
Hong Kong Park               23.8 C               27.7 C
Shau Kei Wan                 24.0 C               25.7 C
Kowloon City                 23.6 C               27.8 C
Happy Valley                 24.0 C               28.6 C
Wong Tai Sin                 23.9 C               26.8 C
Stanley                      24.8 C               29.0 C
Kwun Tong                    23.9 C               26.8 C
Sham Shui Po                 24.0 C               28.8 C
Kai Tak Runway Park          24.2 C               26.1 C
Yuen Long Park               23.2 C               29.7 C
Tai Mei Tuk               23.4 C               26.9 C

Duration of sunshine (King's Park):              2.8 H
The mean UV index recorded at King's Park yesterday was 2,
the UV intensity was Low.
The maximum UV index for yesterday was 6.
 

Yesterday's (15 Oct 2018) 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                           0.09
Tap Mun                             0.08
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 15 Oct
     2003copy right image | Important notices | Privacy policy Last revision date: <16 Oct 2018> 

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