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Bulletin issued at 13:02 HKT 01/Nov/2019

At 1 p.m. at the Hong Kong Observatory the air temperature was 29 degrees Celsius and the relative humidity 60 per cent.
During the past hour the mean UV Index recorded at King's Park was 7. The intensity of UV radiation was high.

The air temperatures at other places were:

King's Park 29 degrees;
Wong Chuk Hang 28 degrees;
Ta Kwu Ling 30 degrees;
Lau Fau Shan 29 degrees;
Tai Po 27 degrees;
Sha Tin 28 degrees;
Tuen Mun 29 degrees;
Tseung Kwan O 29 degrees;
Sai Kung 27 degrees;
Cheung Chau 30 degrees;
Chek Lap Kok 29 degrees;
Tsing Yi 30 degrees;
Shek Kong 29 degrees;
Tsuen Wan Ho Koon 28 degrees;
Tsuen Wan Shing Mun Valley 29 degrees;
Hong Kong Park 29 degrees;
Shau Kei Wan 27 degrees;
Kowloon City 29 degrees;
Happy Valley 29 degrees;
Wong Tai Sin 29 degrees;
Stanley 27 degrees;
Kwun Tong 28 degrees;
Sham Shui Po 31 degrees;
Kai Tak Runway Park 28 degrees;
Yuen Long Park 30 degrees;
Tai Mei Tuk 30 degrees.


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


Climatological Information for 1 Nov

Regional Weather in Hong Kong

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Hong Kong Climatology


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Bulletin updated at 12:45 HKT 01/Nov/2019

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

The dry northeast monsoon is bringing generally fine weather to southeastern China.

Weather forecast for this afternoon and tonight

Mainly fine. Moderate to fresh easterly winds.

Outlook : Mainly fine and dry in the next few days. Slightly cooler midweek next week.


(The above forecast period is valid up to 23:59 HKT today, 01/11/2019; 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 01/Nov/2019

GALE WARNING AREA: TAIWAN STRAIT.

GENERAL SITUATION AT 312100 UTC:
THE NORTHEAST MONSOON IS GENERALLY AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 010100 UTC:

HONG KONG= E TO NE 5-6, OCNL 7. ONE OR TWO RAIN PATCHES. SEA UP TO 4 M. SWELL NE 2 M. TEMP 28-23 C. =
KWANGTUNG= E TO NE 5-6, OCNL 7. ISOL SHOWERS. SEA 3-4 M. SWELL NE 3 M. =
TAIWAN STRAIT= NE 6-7, OCNL 8. ISOL SHOWERS. SEA UP TO 6 M. SWELL NE 3 M. =
BASHI= E TO NE 6-7. ISOL SHOWERS. SEA 3-4 M. SWELL NE 3 M. =
PRATAS= NE 6-7. ISOL SHOWERS. SEA 3-4 M. SWELL NE 3 M. =
BALINTANG= E TO NE 6-7. ISOL SHOWERS. SEA 3-4 M. SWELL NE 3 M. =
SCARBOROUGH= NE 5-6, OCNL 7. ISOL SHOWERS AND TS. SEA UP TO 4 M. SWELL NE 2 M. =
PARACEL= E TO NE 5-6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL NE 2 M. =
TONKIN= NE 5-6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-3 M. =
DANANG= E 5-6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-3 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
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    Bulletin issued at 12:30 HKT 01/Nov/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 12:30 p.m. on 01 November 2019

    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, occasionally force 7.
    One or two rain patches.
    Moderate to rough seas.

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

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

    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 5 to 6, up to force 7 in east.

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

    Waglan Island Wind northeast force 5
      Visibility 32 Kilometres

    Shantou Wind east-southeast force 2
      Visibility 28 Kilometres

    Dongsha Wind northeast force 4
      Visibility 10 Kilometres

    Huangmaozhou Wind east force 5

    Macau Wind north-northeast force 3
      Visibility 12 Kilometres

    Xisha Wind east-northeast force 3
      Visibility 17 Kilometres

  • Explanation of Seas or Sea Waves
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    • WEATHER FORECAST FOR LOCAL AVIATION
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    Weather Forecast for Local Aviation

    Bulletin issued at 12:30 HKT 01/NOV/2019
    (Next update at 17:30 HKT 01/NOV/2019)
    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 SOUTHERN
     CHINA.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1300 TO 2300 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  070/10-15
       OFFSHORE:  080/20, OCNL 25                      30-25
   B.   2000 FT:  080/25                               19
   C.   5000 FT:  070/15                               17
   D.  10000 FT:  070/10                               11
   E.  18000 FT:  310/10                               MS6
   F.  24000 FT:  230/10                               MS14
   G.  30000 FT:  230/20                               MS27
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      2500-3700 FT.
   I. WEATHER       : 
      MAINLY FINE.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 3000 FT.
   K. VISIBILITY    : 10 KM.
   L. 0 DEG. C LEVEL: 15500 FT      10 DEG. C LEVEL(S) : 10400 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. CLOUDY PERIODS.=

    ===================================================================
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.

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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.

    There is no Significant Weather Information (SIGMET)

    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 01/Nov/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     27.2 C
Minimum Air Temperature                     23.2 C
Grass Minimum Temperature                   21.5 C
Relative Humidity                        57 - 80 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January          2382.7 mm
Against an average of                     2334.0 mm

Other Stations                Min                  Max
King's Park                  22.6 C               27.1 C
Wong Chuk Hang               23.3 C               27.0 C
Ta Kwu Ling                  18.7 C               28.4 C
Lau Fau Shan                 20.8 C               28.0 C
Tai Po                       21.1 C               26.4 C
Sha Tin                      22.7 C               27.3 C
Tuen Mun                     22.3 C               28.0 C
Tseung Kwan O                21.0 C               26.8 C
Sai Kung                     22.7 C               26.3 C
Cheung Chau                  21.8 C               28.4 C
Chek Lap Kok                 22.9 C               29.1 C
Tsing Yi                     23.3 C               28.2 C
Shek Kong                    20.7 C               28.6 C
Tsuen Wan Ho Koon            20.4 C               27.3 C
Tsuen Wan Shing Mun Valley   21.2 C               27.7 C
Hong Kong Park               22.9 C               28.0 C
Shau Kei Wan                 21.7 C               28.3 C
Kowloon City                 22.1 C               27.1 C
Happy Valley                 23.2 C               27.8 C
Wong Tai Sin                 22.9 C               28.8 C
Stanley                      23.1 C               26.7 C
Kwun Tong                    22.1 C               26.8 C
Sham Shui Po                 22.3 C               29.3 C
Kai Tak Runway Park          22.5 C               26.5 C
Yuen Long Park               21.7 C               28.3 C
Tai Mei Tuk               22.0 C               28.4 C

Duration of sunshine (King's Park):              5.1 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 (31 Oct 2019) 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                               0.11
Yuen Ng Fan                         0.12
Tai Mei Tuk                         0.12
Sha Tau Kok                         0.11
Kwun Tong                           0.13
Sai Wan Ho                          0.10
King's Park                         0.14
Tsim Bei Tsui                       0.13
Cape D'Aguilar                      0.13
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 31 Oct
     2003copy right image | Important notices | Privacy policy Last revision date: <01 Nov 2019> 

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