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Bulletin issued at 17:02 HKT 14/Oct/2018

At 5 p.m. at the Hong Kong Observatory the air temperature was 25 degrees Celsius and the relative humidity 78 per cent.
During the past hour the mean UV Index recorded at King's Park was 0.6. The intensity of UV radiation was low.

Please be reminded that:

The Fire Danger Warning is Yellow and the fire risk is high.

The air temperatures at other places were:

King's Park 25 degrees;
Wong Chuk Hang 25 degrees;
Ta Kwu Ling 25 degrees;
Lau Fau Shan 26 degrees;
Tai Po 25 degrees;
Sha Tin 25 degrees;
Tuen Mun 26 degrees;
Tseung Kwan O 25 degrees;
Sai Kung 25 degrees;
Cheung Chau 25 degrees;
Chek Lap Kok 27 degrees;
Tsing Yi 26 degrees;
Shek Kong 26 degrees;
Tsuen Wan Ho Koon 25 degrees;
Tsuen Wan Shing Mun Valley 25 degrees;
Hong Kong Park 25 degrees;
Shau Kei Wan 24 degrees;
Kowloon City 25 degrees;
Happy Valley 25 degrees;
Wong Tai Sin 25 degrees;
Stanley 25 degrees;
Kwun Tong 25 degrees;
Sham Shui Po 26 degrees;
Kai Tak Runway Park 25 degrees;
Yuen Long Park 26 degrees;
Tai Mei Tuk 25 degrees.


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


Climatological Information for 14 Oct

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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Local Weather Forecast

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

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Bulletin updated at 16:45 HKT 14/Oct/2018

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

The northeast monsoon is affecting the south China coast. Besides, a trough of low pressure has formed over the northern part of Guangdong. It will bring unsettled weather to Guangdong in the next couple of days.

Weather forecast for tonight and tomorrow

Mainly cloudy with a few showers. There will be isolated thunderstorms later tomorrow. Temperatures will range between 24 and 27 degrees. Moderate easterly winds, fresh at first.

Outlook : There will be showers on Tuesday. Weather will improve gradually midweek this week.


(The above forecast period is valid up to 23:59 HKT tomorrow, 15/10/2018; 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 09:00 HKT 14/Oct/2018

GALE WARNING AREAS: KWANGTUNG, TAIWAN STRAIT AND BASHI.

GENERAL SITUATION AT 132100 UTC:
AN EASTERLY AIRSTREAM IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 140100 UTC:

HONG KONG= E 5-6, OCNL 7. RAIN PATCHES. SEA UP TO 4 M. SWELL E TO NE 2 M. TEMP 27-24 C. =
KWANGTUNG= E 6-7, OCNL 8 IN E. RAIN PATCHES. SEA UP TO 6 M. SWELL E TO NE 2-3 M. =
TAIWAN STRAIT= NE 7-8. RAIN PATCHES. SEA 4-6 M. SWELL NE 3 M. =
BASHI= E TO NE 7-8. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 4-6 M. SWELL NE 3 M. =
PRATAS= E TO NE 6-7. RAIN PATCHES. SEA 3-4 M. SWELL NE 2-3 M. =
BALINTANG= E TO NE 6-7. ISOL SHOWERS AND TS. SEA 3-4 M. SWELL NE 3 M. =
SCARBOROUGH= E TO NE 5-6, OCNL 7. ISOL SHOWERS AND TS. SEA UP TO 4 M. SWELL NE 3 M. =
PARACEL= E 5-6, OCNL 7. ISOL SHOWERS AND TS. SEA UP TO 4 M. SWELL E TO NE 2-3 M. =
TONKIN= SE 4-5, N 4-5 LATER. DOWN TO 4000 M IN MIST OR RAIN PATCHES. SEA UP TO 2 M. SWELL NE UP TO 2 M. =
DANANG= E TO SE 4-5, OCNL 6. ISOL SHOWERS AND TS. SEA UP TO 3 M. SWELL E TO NE 2-3 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 14/Oct/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 4:30 p.m. on 14 October 2018

    Warnings:
    Strong winds in all areas.

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

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East force 5 to 6, occasionally force 7.
    A few rain patches.
    Moderate to rough seas.

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

    South of Hong Kong:
    East force 5 to 6, occasionally force 7.
    Moderate to rough seas.

    Shangchuan Dao:
    East to southeast force 4 to 5, occasionally force 6.
    Moderate to rough seas.

    Outlook for the next 48 hours
    Easterly winds of force 5 to 6, north to northeasterly winds of force 5 to 6 later. Isolated showers and thunderstorms.

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

    Waglan Island Wind east-northeast force 4
      Visibility 14 Kilometres

    Shantou Wind northeast force 2
      Visibility 30 Kilometres

    Dongsha Wind northeast force 3
      Visibility 10 Kilometres

    Huangmaozhou Wind east force 5

    Macau Wind east force 2
      Visibility 13 Kilometres

    Xisha Wind east force 3
      Visibility 27 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
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    Weather Forecast for Local Aviation

    Bulletin issued at 17:30 HKT 14/OCT/2018
    (Next update at 01:30 HKT 15/OCT/2018)
    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 SOUTH
     CHINA COAST.  BESIDES, A TROUGH OF LOW PRESSURE
     HAS FORMED OVER THE NORTHERN PART OF GUANGDONG.
     IT WILL BRING UNSETTLED WEATHER TO GUANGDONG IN
     THE NEXT COUPLE OF DAYS.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  100/10-15
       OFFSHORE:  100/15-20, OCNL 25                   27-23
   B.   2000 FT:  140/15-20                            20
   C.   5000 FT:  200/10                               16
   D.  10000 FT:  270/15                               10
   E.  18000 FT:  270/25                               MS6
   F.  24000 FT:  280/30                               MS15
   G.  30000 FT:  290/35                               MS29
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY CLOUDY WITH A FEW SHOWERS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT  SCT 4000 FT.
   K. VISIBILITY    : 9 KM.  TEMPO 4000 M IN SHOWERS.
   L. 0 DEG. C LEVEL: 15000 FT      10 DEG. C LEVEL(S) : 10000 FT
   M. TURBULENCE    : MOD TO SEV OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 2.0-3.0 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EASTERLY WINDS, FRESH AT FIRST.  MAINLY
     CLOUDY WITH A FEW 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 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 14/Oct/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     26.8 C
Minimum Air Temperature                     22.7 C
Grass Minimum Temperature                   22.1 C
Relative Humidity                        63 - 89 Percent
Rainfall                                     0.4 mm 
Total rainfall since 1st January          2022.3 mm
Against an average of                     2286.4 mm

Other Stations                Min                  Max
King's Park                  22.2 C               26.8 C
Wong Chuk Hang               22.8 C               26.8 C
Ta Kwu Ling                  21.3 C               27.6 C
Lau Fau Shan                 21.0 C               28.3 C
Tai Po                       21.3 C               25.7 C
Sha Tin                      22.1 C               27.0 C
Tuen Mun                     22.2 C               27.2 C
Tseung Kwan O                21.1 C               26.6 C
Sai Kung                     22.5 C               25.2 C
Cheung Chau                  21.5 C               27.4 C
Chek Lap Kok                 22.6 C               28.7 C
Tsing Yi                     22.4 C               26.9 C
Shek Kong                    22.2 C               27.5 C
Tsuen Wan Ho Koon            21.4 C               27.0 C
Tsuen Wan Shing Mun Valley   22.0 C               27.8 C
Hong Kong Park               21.8 C               26.4 C
Shau Kei Wan                 21.8 C               26.3 C
Kowloon City                 22.1 C               27.6 C
Happy Valley                 22.6 C               27.6 C
Wong Tai Sin                 22.4 C               26.7 C
Stanley                      22.8 C               26.3 C
Kwun Tong                    22.0 C               26.1 C
Sham Shui Po                 22.1 C               28.1 C
Kai Tak Runway Park          22.7 C               25.5 C
Yuen Long Park               22.0 C               28.1 C
Tai Mei Tuk               21.8 C               27.5 C

Duration of sunshine (King's Park):              5.5 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 8.
 

Yesterday's (13 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 13 Oct
     2003copy right image | Important notices | Privacy policy Last revision date: <14 Oct 2018> 

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