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Bulletin issued at 11:02 HKT 04/Nov/2018

At 11 a.m. at the Hong Kong Observatory the air temperature was 24 degrees Celsius and the relative humidity 81 per cent.
During the past hour the mean UV Index recorded at King's Park was 3. The intensity of UV radiation was moderate.

The air temperatures at other places were:

King's Park 24 degrees;
Wong Chuk Hang 25 degrees;
Ta Kwu Ling 25 degrees;
Lau Fau Shan 23 degrees;
Tai Po 23 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 24 degrees;
Tsuen Wan Ho Koon 24 degrees;
Tsuen Wan Shing Mun Valley 25 degrees;
Hong Kong Park 24 degrees;
Shau Kei Wan 23 degrees;
Kowloon City 25 degrees;
Happy Valley 24 degrees;
Wong Tai Sin 24 degrees;
Stanley 24 degrees;
Kwun Tong 23 degrees;
Sham Shui Po 25 degrees;
Kai Tak Runway Park 24 degrees;
Yuen Long Park 23 degrees;
Tai Mei Tuk 25 degrees.


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


Climatological Information for 4 Nov

Regional Weather in Hong Kong

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Hong Kong Climatology


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

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Bulletin updated at 10:45 HKT 04/Nov/2018

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

The northeast monsoon is affecting the coast of Guangdong. Meanwhile, clouds covering the region thin out slightly.

Weather forecast for today

Mainly cloudy. Sunny intervals during the day. Moderate east to northeasterly winds.

Outlook : The weather improving in the next couple of days.


(The above forecast period is valid up to 23:59 HKT today, 04/11/2018; 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 04/Nov/2018

N0 WARNING.

GENERAL SITUATION AT 032100 UTC:
THE NORTHEAST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 040100 UTC:

HONG KONG= E TO NE 5-6. LGT RAIN PATCHES. SEA 2-3 M. SWELL NE UP TO 2 M. TEMP 26-23 C. =
KWANGTUNG= E TO NE 5-6, OCNL 7 IN E. LGT RAIN PATCHES. SEA 2-3 M, UP TO 4 M IN E. SWELL NE 2 M. =
TAIWAN STRAIT= NE 5-6, OCNL 7. LGT RAIN PATCHES. SEA UP TO 4 M. SWELL NE 2 M. =
BASHI= E 5-6. FINE. SEA 2-3 M. SWELL NE 2 M. =
PRATAS= E TO NE 5-6, OCNL 7. LGT RAIN PATCHES. SEA UP TO 4 M. SWELL NE 2 M. =
BALINTANG= E 5-6. FINE. SEA 2-3 M. SWELL NE 2 M. =
SCARBOROUGH= NE 5-6, OCNL 7. FINE. SEA UP TO 4 M. SWELL NE 2 M. =
PARACEL= E TO NE 5-6. LGT RAIN PATCHES. SEA 2-3 M. SWELL NE 2 M. =
TONKIN= E TO NE 4-5. FINE. SEA UP TO 2 M. =
DANANG= E TO NE 4-5. LGT RAIN PATCHES. SEA UP TO 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 09:30 HKT 04/Nov/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 9:30 a.m. on 04 November 2018

    Warnings:
    Strong winds in all areas.

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

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East to northeast force 5 to 6.
    A few light rain patches.
    Moderate to rough seas.

    Nan'ao and Shanwei:
    East to northeast force 5 to 6, occasionally force 7.
    Moderate to rough seas.

    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 6 to 7.

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

    Waglan Island Wind northeast force 4
      Visibility 18 Kilometres

    Shantou Wind east force 2
      Visibility 24 Kilometres

    Huangmaozhou Wind northeast force 4

    Macau Wind north force 2
      Visibility 6 Kilometres

    Xisha Wind north-northeast force 2
      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
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    • WEATHER FORECAST FOR LOCAL AVIATION
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    Weather Forecast for Local Aviation

    Bulletin issued at 09:30 HKT 04/NOV/2018
    (Next update at 12:30 HKT 04/NOV/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 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  070/5-10
       OFFSHORE:  070/10-15                            22-26
   B.   2000 FT:  080/10-15                            19
   C.   5000 FT:  140/10                               15
   D.  10000 FT:  240/10                               12
   E.  18000 FT:  240/25                               MS4
   F.  24000 FT:  240/25                               MS16
   G.  30000 FT:  240/40                               MS29
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      3400-3900 FT
   I. WEATHER       : 
      MAINLY CLOUDY. A FEW LIGHT RAIN PATCHES AT
      FIRST. LOCALIZED MIST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT SCT 3000 FT BKN 8000 FT
   K. VISIBILITY    : 8 KM. TEMPO 4000 M IN RAIN/MIST.
   L. 0 DEG. C LEVEL: 16000 FT      10 DEG. C LEVEL(S) : 7000,11400 FT
   M. TURBULENCE    : MOD OFFSHORE AND  NEAR HILLS
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 25 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EAST TO NORTHEASTERLY WINDS. MAINLY
     CLOUDY. A FEW RAIN PATCHES.=

    ===================================================================
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 09:45 HKT on 02 Nov 18

    VHHK SIGMET 1 VALID 020140/020600 VHHH- VHHK HONG KONG FIR TC YUTU PSN N2048 E11636 CB OBS AT 00Z WI 120NM OF TC CENTRE TOP FL400 WKN FCST AT 0600Z TC CENTRE PSN N2054 E11636= VHHK SIGMET 3 VALID 020150/020600 VHHH- VHHK HONG KONG FIR TC YUTU PSN N2048 E11636 CB OBS AT 0000Z WI 120NM OF TC CENTRE TOP FL400 WKN FCST AT 0600Z TC CENTRE PSN N2054 E11636=

    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 04/Nov/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     23.4 C
Minimum Air Temperature                     19.4 C
Grass Minimum Temperature                   19.5 C
Relative Humidity                        76 - 95 Percent
Rainfall                                     8.3 mm 
Total rainfall since 1st January          2086.0 mm
Against an average of                     2338.6 mm

Other Stations                Min                  Max
King's Park                  18.9 C               23.1 C
Wong Chuk Hang               19.1 C               23.5 C
Ta Kwu Ling                  18.4 C               22.6 C
Lau Fau Shan                 18.5 C               22.5 C
Tai Po                       17.4 C               21.8 C
Sha Tin                      18.3 C               22.8 C
Tuen Mun                     19.2 C               22.9 C
Tseung Kwan O                18.9 C               23.5 C
Sai Kung                     19.3 C               22.9 C
Cheung Chau                  19.1 C               22.8 C
Chek Lap Kok                 18.9 C               23.9 C
Tsing Yi                     18.7 C               23.5 C
Shek Kong                    18.1 C               22.7 C
Tsuen Wan Ho Koon            17.7 C               21.9 C
Tsuen Wan Shing Mun Valley   18.5 C               23.0 C
Hong Kong Park               18.8 C               23.5 C
Shau Kei Wan                 18.7 C               23.6 C
Kowloon City                 18.3 C               23.0 C
Happy Valley                 19.3 C               23.9 C
Wong Tai Sin                 18.7 C               23.0 C
Stanley                      19.8 C               23.9 C
Kwun Tong                    18.7 C               23.6 C
Sham Shui Po                 18.5 C               22.9 C
Kai Tak Runway Park          18.8 C               23.9 C
Yuen Long Park               18.3 C               22.6 C
Tai Mei Tuk               18.1 C               22.5 C

Duration of sunshine (King's Park):              0.0 H
The mean UV index recorded at King's Park yesterday was 1,
the UV intensity was Low.
The maximum UV index for yesterday was 3.
 

Yesterday's (03 Nov 2018) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.09 to
0.15 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                         0.11
Kwun Tong                           0.13
Sai Wan Ho                          0.09
King's Park                         0.15
Tsim Bei Tsui                       0.13
Cape D'Aguilar                      0.14
Chek Lap Kok                        0.15

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 03 Nov
     2003copy right image | Important notices | Privacy policy Last revision date: <04 Nov 2018> 

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