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Bulletin issued at 23:02 HKT 15/Oct/2018

At 11 p.m. at the Hong Kong Observatory the air temperature was 24 degrees Celsius and the relative humidity 97 per cent.

The air temperatures at other places were:

King's Park 24 degrees;
Wong Chuk Hang 25 degrees;
Ta Kwu Ling 24 degrees;
Lau Fau Shan 24 degrees;
Tai Po 23 degrees;
Sha Tin 24 degrees;
Tuen Mun 25 degrees;
Tseung Kwan O 24 degrees;
Sai Kung 24 degrees;
Cheung Chau 25 degrees;
Chek Lap Kok 27 degrees;
Tsing Yi 24 degrees;
Shek Kong 25 degrees;
Tsuen Wan Ho Koon 23 degrees;
Tsuen Wan Shing Mun Valley 24 degrees;
Hong Kong Park 24 degrees;
Shau Kei Wan 24 degrees;
Kowloon City 24 degrees;
Happy Valley 24 degrees;
Wong Tai Sin 24 degrees;
Stanley 25 degrees;
Kwun Tong 24 degrees;
Sham Shui Po 24 degrees;
Kai Tak Runway Park 24 degrees;
Yuen Long Park 25 degrees;
Tai Mei Tuk 24 degrees.

Between 9:45 and 10:45 p.m., the rainfall recorded in various regions were:

Wong Tai Sin 0 to 16 mm;
Tai Po 0 to 1 mm;
Eastern District 0 to 1 mm;
Sham Shui Po 1 mm;
Kwai Tsing 0 to 1 mm;
Central & Western District 0 to 1 mm;
North District 0 to 1 mm;
Wan Chai 1 mm;
Sai Kung 0 to 1 mm;
Kowloon City 0 to 1 mm;
Sha Tin 1 mm;
Kwun Tong 1 mm.


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


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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 23:15 HKT 15/Oct/2018

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

An easterly airstream affected the coast of Guangdong today. Locally, it was mainly cloudy with sunny intervals and a few showers. The trough of low pressure over inland Guangdong developed into a weak cold front in the afternoon. It will move across the coast of Guangdong and bring unsettled weather tomorrow. Under the influence of its associated northeast monsoon, the weather will be slightly cooler over Guangdong midweek this week and it will be windier in the latter part of this week.

Weather forecast for Hong Kong (Tuesday, 16 Oct 2018)

Cloudy with a few showers. Showers will be heavier in the morning with isolated thunderstorms. Slightly cooler with temperatures ranging between 22 and 26 degrees. Moderate easterly winds, becoming northeasterlies.

Outlook : Slightly cooler with a few showers on Chung Yeung Festival. The weather will improve gradually in the middle and latter parts of this week, but it will be windier.


(The above forecast period is valid up to 23:59 HKT tomorrow, 16/10/2018; 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 21:00 HKT 15/Oct/2018

N0 WARNING.

GENERAL SITUATION AT 150900 UTC:
COLD FRONT 22N 106E 23N 112E 25N 117E S SLOWLY.

MARINE FORECAST FOR 24 HOURS FROM 151300 UTC:

HONG KONG= E TO NE 4-5. 2000 M IN SCT SHOWERS AND SQUALLY TS. SEA UP TO 2 M. SWELL E UP TO 2 M. TEMP 22-26 C. =
KWANGTUNG= E TO NE 5-6. 2000 M IN SCT SHOWERS AND SQUALLY TS. SEA 2-3 M. SWELL E TO NE 2-3 M. =
TAIWAN STRAIT= NE 5-6, OCNL 7 LATER. 4000 M IN ISOL SHOWERS AND SQUALLY TS. SEA 2-3 M, UP TO 4 M LATER. SWELL NE 2-3 M. =
BASHI= E TO NE 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. SWELL NE 2-3 M. =
PRATAS= E TO NE 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. SWELL NE 2-3 M. =
BALINTANG= E TO NE 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. SWELL NE 2-3 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= E TO SE 4-5. 4000 M IN MIST PATCHES. ISOL SHOWERS AND SQUALLY TS. SEA UP TO 2 M. =
DANANG= E TO SE 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
  • 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 23:30 HKT 15/Oct/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 11:30 p.m. on 15 October 2018

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

    Weather Situation:
    An easterly airstream is affecting the south China coastal waters.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East to northeast force 4 to 5.
    Isolated showers and squally thunderstorms, Showers will be heavy at times in the morning.
    Moderate seas.

    Nan'ao and Shanwei:
    East to northeast force 5 to 6.
    Isolated showers and squally thunderstorms.
    Moderate to rough seas.

    South of Hong Kong:
    East force 5 to 6.
    Isolated showers and squally thunderstorms.
    Moderate to rough seas.

    Shangchuan Dao:
    East force 4 to 5.
    Isolated showers and squally thunderstorms.
    Moderate seas.

    Outlook for the next 48 hours
    Northeasterly winds of force 5 to 6, force 7 to 8 in east later. Isolated showers and thunderstorms.

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

    Waglan Island Wind east force 4
      Visibility 15 Kilometres

    Shantou Wind east-southeast force 2
      Visibility 30 Kilometres

    Dongsha Wind north-northeast force 3
      Visibility 10 Kilometres

    Huangmaozhou Wind east-southeast force 4

    Macau Wind east-southeast force 2
      Visibility 13 Kilometres

    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
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    • WEATHER FORECAST FOR LOCAL AVIATION
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    Weather Forecast for Local Aviation

    Bulletin issued at 17:30 HKT 15/OCT/2018
    (Next update at 01:30 HKT 16/OCT/2018)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE TROUGH OF LOW PRESSURE OVER INLAND GUANGDONG
     HAS DEVELOPED INTO A WEAK COLD FRONT.  IT WILL
     EDGE SOUTHWARDS CLOSER AND BRING SHOWERS TO THE
     COASTAL AREAS.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  120/10 BEC 040/10
                  TEMPO VRB/20G30 IN TS
       OFFSHORE:  100/15 BEC 040/15                    27-22
   B.   2000 FT:  140/15-20 BEC 020/15                 19
   C.   5000 FT:  240/10                               16
   D.  10000 FT:  280/15                               10
   E.  18000 FT:  280/25                               MS5
   F.  24000 FT:  290/30                               MS15
   G.  30000 FT:  290/40                               MS28
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      CLOUDY WITH A FEW SHOWERS AND THUNDERSTORMS.
      SHOWERS WILL BE HEAVIER LATER.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT  SCT 4000 FT  BKN 8000 FT.  TEMPO
      FEW CB 800 FT  SCT 1500 FT  BKN 4000 FT.
   K. VISIBILITY    : 9 KM.  TEMPO 3500 M IN SHOWERS.
                      TEMPO 1500 M IN TS.
   L. 0 DEG. C LEVEL: 15500 FT      10 DEG. C LEVEL(S) : 10000 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS.
                      MOD OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 2.0 M         SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE NORTHEASTERLY WINDS.  CLOUDY WITH A FEW
     SHOWERS AND THUNDERSTORMS.  SHOWERS WILL BE
     HEAVIER AT FIRST.=

    ===================================================================
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 15/Oct/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     27.3 C
Minimum Air Temperature                     23.6 C
Grass Minimum Temperature                   22.6 C
Relative Humidity                        72 - 83 Percent
Rainfall                                     0.6 mm 
Total rainfall since 1st January          2022.9 mm
Against an average of                     2292.4 mm

Other Stations                Min                  Max
King's Park                  23.0 C               27.0 C
Wong Chuk Hang               24.2 C               27.1 C
Ta Kwu Ling                  23.1 C               27.6 C
Lau Fau Shan                 22.2 C               28.5 C
Tai Po                       23.9 C               25.3 C
Sha Tin                      23.9 C               26.7 C
Tuen Mun                     23.4 C               28.5 C
Tseung Kwan O                22.5 C               25.4 C
Sai Kung                     24.4 C               25.5 C
Cheung Chau                  23.6 C               28.8 C
Chek Lap Kok                 24.8 C               29.1 C
Tsing Yi                     24.5 C               27.2 C
Shek Kong                    22.8 C               28.4 C
Tsuen Wan Ho Koon            21.8 C               26.9 C
Tsuen Wan Shing Mun Valley   23.1 C               27.0 C
Hong Kong Park               23.4 C               26.8 C
Shau Kei Wan                 23.9 C               25.4 C
Kowloon City                 23.6 C               27.9 C
Happy Valley                 24.2 C               26.3 C
Wong Tai Sin                 23.4 C               27.4 C
Stanley                      24.3 C               26.2 C
Kwun Tong                    23.4 C               26.2 C
Sham Shui Po                 23.9 C               28.3 C
Kai Tak Runway Park          24.0 C               25.8 C
Yuen Long Park               22.4 C               27.2 C
Tai Mei Tuk               23.1 C               26.4 C

Duration of sunshine (King's Park):              2.7 H
The mean UV index recorded at King's Park yesterday was 3,
the UV intensity was Moderate.
The maximum UV index for yesterday was 7.
 

Yesterday's (14 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 14 Oct
     2003copy right image | Important notices | Privacy policy Last revision date: <15 Oct 2018> 

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