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Bulletin issued at 17:02 HKT 05/Nov/2019

At 5 p.m. at the Hong Kong Observatory the air temperature was 25 degrees Celsius and the relative humidity 60 per cent.
During the past hour the mean UV Index recorded at King's Park was 0.4. The intensity of UV radiation was low.

Please be reminded that:

The Fire Danger Warning is Red and the fire risk is extreme.

The air temperatures at other places were:

King's Park 24 degrees;
Wong Chuk Hang 25 degrees;
Ta Kwu Ling 26 degrees;
Lau Fau Shan 27 degrees;
Tai Po 25 degrees;
Sha Tin 25 degrees;
Tuen Mun 25 degrees;
Tseung Kwan O 22 degrees;
Sai Kung 24 degrees;
Cheung Chau 24 degrees;
Chek Lap Kok 26 degrees;
Tsing Yi 25 degrees;
Shek Kong 26 degrees;
Tsuen Wan Ho Koon 25 degrees;
Tsuen Wan Shing Mun Valley 26 degrees;
Hong Kong Park 24 degrees;
Shau Kei Wan 23 degrees;
Kowloon City 25 degrees;
Happy Valley 24 degrees;
Wong Tai Sin 25 degrees;
Stanley 24 degrees;
Kwun Tong 24 degrees;
Sham Shui Po 26 degrees;
Kai Tak Runway Park 25 degrees;
Yuen Long Park 26 degrees;
Tai Mei Tuk 25 degrees.

Here is the information on Tropical Depression at 4 p.m.:
Location: 13.6 degrees north, 115.3 degrees east.


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


Climatological Information for 5 Nov

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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Bulletin updated at 16:45 HKT 05/Nov/2019

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

A dry northeast monsoon is bringing fine weather to southern China.

Besides, the area of low pressure over the central and southern parts of the South China Sea has intensified into a tropical depression. At 4 p.m., the tropical depression was centred about 370 kilometres north-northeast of Nansha. It is forecast to move east slowly and intensify gradually.

Weather forecast for tonight and tomorrow

Fine. Very dry in the afternoon. Moderate to fresh northeasterly winds, strengthening from the east tonight.

Outlook : Mainly fine and dry, and it will be windy in the next few days. Slightly cooler in the morning and at night.


(The above forecast period is valid up to 23:59 HKT tomorrow, 06/11/2019; 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 05/Nov/2019

GALE WARNING AREAS: KWANGTUNG, TAIWAN STRAIT, BASHI, PRATAS, BALINTANG, SCARBOROUGH AND PARACEL.

GENERAL SITUATION AT 042100 UTC:
LOW 1004 HPA 15N 115E QSTNR INTST INTSF. THE NORTHEAST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 050100 UTC:

HONG KONG= N 5-6, BEC E TO NE 5-6, OCNL 7. FINE. SEA 2-3 M, BEC 4 M. SWELL NE 2-3 M. TEMP 27-22 C. =
KWANGTUNG= NE 6-7, OCNL 8. FINE. SEA UP TO 6 M. SWELL NE 3 M. =
TAIWAN STRAIT= NE 7-8, OCNL 9. CLD. SEA UP TO 8 M. SWELL NE 3-4 M. =
BASHI= NE 7-8, OCNL 9. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA UP TO 8 M. SWELL NE 3-4 M. =
PRATAS= NE 7-8, OCNL 9. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA UP TO 8 M. SWELL NE 3 M. =
BALINTANG= E TO NE 7-8, OCNL 9. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA UP TO 8 M. SWELL NE 3-4 M. =
SCARBOROUGH= N TO NE 7-8. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 4-6 M. SWELL NE 3-4 M. =
PARACEL= N TO NE 7-8. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 4-6 M. SWELL NE 3-4 M. =
TONKIN= NE 5-6. ISOL SHOWERS. SEA 2-3 M. =
DANANG= N TO NE 6-7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL NE 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.


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    • SOUTH CHINA COASTAL WATERS
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    South China Coastal Waters

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    Bulletin issued at 16:30 HKT 05/Nov/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 4:30 p.m. on 05 November 2019

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

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

    At 4 p.m., the tropical depression over the central and southern parts of the South China Sea with maximum sustained winds of about 55 kilometres per hour near its centre was located at 13.6 degrees north, 115.3 degrees east. It is forecast to move east slowly and intensify gradually.

    Area forecasts for the next 24 hours

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

    Nan'ao and Shanwei:
    Northeast force 7 to 8.
    Rough to very rough seas.

    South of Hong Kong and Shangchuan Dao:
    Northeast force 6 to 7.
    Rough seas.

    Outlook for the next 48 hours
    North to northeasterly winds of force 6 to 7, up to force 8 in east.

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

    Waglan Island Wind east force 4
      Visibility 20 Kilometres

    Shantou Wind east-southeast force 2
      Visibility 30 Kilometres

    Dongsha Wind north-northeast force 5
      Visibility 10 Kilometres

    Huangmaozhou Wind east-northeast force 5

    Macau Wind north-northeast force 3
      Visibility 14 Kilometres

    Xisha Wind north-northeast force 4
      Visibility 11 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 17:30 HKT 05/NOV/2019
    (Next update at 01:30 HKT 06/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 THE SOUTH
     CHINA COASTAL AREAS.
     
     AT 4 P.M., THE TROPICAL DEPRESSION OVER THE
     CENTRAL AND SOUTHERN PARTS OF THE SOUTH CHINA
     SEA WAS LOCATED AT 13.6 DEGREES NORTH, 115.3
     DEGREES EAST. IT IS FORECAST TO MOVE EAST SLOWLY
     AND INTENSIFY GRADUALLY.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  080/10-15, OCNL 20 LATER
       OFFSHORE:  080/15-20, 25 LATER                  26-23
   B.   2000 FT:  040/10-15
                  BECMG 080/20-25                      17
   C.   5000 FT:  080/20                               13
   D.  10000 FT:  040/10                               9
   E.  18000 FT:  270/20                               MS2
   F.  24000 FT:  280/25                               MS14
   G.  30000 FT:  270/35                               MS26
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY FINE.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 4000 FT
   K. VISIBILITY    : 10 KM.
   L. 0 DEG. C LEVEL: 17000 FT      10 DEG. C LEVEL(S) : 9600 FT
   M. TURBULENCE    : MOD TO SEV
   N. SEA STATE     : 2.0-3.5 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH EAST TO NORTHEASTERLY WINDS,
     STRONG OFFSHORE. MAINLY FINE.=

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

    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

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    Bulletin issued at 15:30 HKT 05/Nov/2019


    Tropical Cyclone Warning

    An area of low pressure over the South China Sea has intensified into a Tropical Depression with central pressure 998 hectopascals. At 050600 UTC, it was centred within 60 nautical miles of one three point six degrees north (13.6 N) one one five point two degrees east (115.2 E) and is forecast to move east slowly for the next 24 hours.

    Maximum winds near the centre are estimated to be 30 knots.

    Radius of over 2 metre waves 210 nautical miles.

    Forecast position and intensity at 060600 UTC
    One three point three degrees north (13.3 N)
    One one six point six degrees east (116.6 E)
    Maximum winds 35 knots.

    Forecast position and intensity at 070600 UTC
    One three point one degrees north (13.1 N)
    One one six point six degrees east (116.6 E)
    Maximum winds 45 knots.

    Forecast position and intensity at 080600 UTC
    One three point zero degrees north (13.0 N)
    One one six point zero degrees east (116.0 E)
    Maximum winds 45 knots.

    Forecast position and intensity at 090600 UTC
    One three point one degrees north (13.1 N)
    One one three point five degrees east (113.5 E)
    Maximum winds 45 knots.

    Forecast position and intensity at 100600 UTC
    One three point nine degrees north (13.9 N)
    One one zero point six degrees east (110.6 E)
    Maximum winds 40 knots.



    The Hong Kong Observatory's tropical cyclone warnings for shipping are issued about one and a half hours after the time of observation. They incorporate additional information derived from surface and upper-air data and may therefore be slightly different from the real-time satellite or radar-based positions given in the hourly bulletins for public.

    While the forecast positions and track indicate the most likely future path of the tropical cyclone, they may deviate from the actual path taken by the storm.

    Tropical Cyclone Track
    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 05/Nov/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     28.6 C
Minimum Air Temperature                     22.8 C
Grass Minimum Temperature                   20.6 C
Relative Humidity                        44 - 75 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January          2382.7 mm
Against an average of                     2341.9 mm

Other Stations                Min                  Max
King's Park                  22.4 C               28.1 C
Wong Chuk Hang               21.3 C               28.5 C
Ta Kwu Ling                  22.1 C               29.1 C
Lau Fau Shan                 21.9 C               28.8 C
Tai Po                       21.5 C               27.5 C
Sha Tin                      22.9 C               28.5 C
Tuen Mun                     22.7 C               29.1 C
Tseung Kwan O                20.5 C               29.0 C
Sai Kung                     22.0 C               27.5 C
Cheung Chau                  21.1 C               28.9 C
Chek Lap Kok                 23.5 C               29.9 C
Tsing Yi                     22.4 C               29.2 C
Shek Kong                    20.2 C               29.1 C
Tsuen Wan Ho Koon            20.2 C               27.0 C
Tsuen Wan Shing Mun Valley   20.7 C               28.8 C
Hong Kong Park               22.7 C               28.8 C
Shau Kei Wan                 21.9 C               29.1 C
Kowloon City                 22.0 C               28.5 C
Happy Valley                 22.2 C               29.0 C
Wong Tai Sin                 22.5 C               29.1 C
Stanley                      22.7 C               29.1 C
Kwun Tong                    22.0 C               28.0 C
Sham Shui Po                 22.7 C               30.6 C
Kai Tak Runway Park          22.7 C               28.8 C
Yuen Long Park               22.0 C               29.8 C
Tai Mei Tuk               21.9 C               28.7 C

Duration of sunshine (King's Park):              9.5 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 6.
 

Yesterday's (04 Nov 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                         0.11
Sha Tau Kok                         0.10
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 04 Nov
     2003copy right image | Important notices | Privacy policy Last revision date: <05 Nov 2019> 

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