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Bulletin issued at 17:02 HKT 22/Nov/2019

At 5 p.m. at the Hong Kong Observatory the air temperature was 24 degrees Celsius and the relative humidity 57 per cent.
During the past hour the mean UV Index recorded at King's Park was 0.5. 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 25 degrees;
Tai Po 25 degrees;
Sha Tin 25 degrees;
Tuen Mun 24 degrees;
Tseung Kwan O 22 degrees;
Sai Kung 23 degrees;
Cheung Chau 23 degrees;
Chek Lap Kok 25 degrees;
Tsing Yi 23 degrees;
Shek Kong 25 degrees;
Tsuen Wan Ho Koon 23 degrees;
Tsuen Wan Shing Mun Valley 25 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 25 degrees;
Kai Tak Runway Park 24 degrees;
Yuen Long Park 25 degrees;
Tai Mei Tuk 23 degrees.


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


Climatological Information for 22 Nov

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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Bulletin updated at 16:45 HKT 22/Nov/2019

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

A dry northeast monsoon is bringing generally fine weather to southern China. Locally, the relative humidity over the territory fell below 50 per cent in the afternoon.

Severe Tropical Storm Fung-wong has weakened into a tropical storm. At 4 p.m., Fung-wong was centred about 420 kilometres east-southeast of Taibei. It is forecast to move north or north-northeast at about 15 kilometres per hour towards the East China Sea and weaken.

Weather forecast for tonight and tomorrow

Mainly fine and dry. The minimum temperature will be about 21 degrees in the urban areas tomorrow, and a couple of degrees lower in the New Territories. The maximum temperature will be around 26 degrees during the day. Moderate east to northeasterly winds.

Outlook : Fine on Sunday. Cloudier in the following couple of days. Slightly cooler on Tuesday.


(The above forecast period is valid up to 23:59 HKT tomorrow, 23/11/2019; 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 22/Nov/2019

STORM WARNING AREA: BASHI.
GALE WARNING AREA: TAIWAN STRAIT.

GENERAL SITUATION AT 212100 UTC:
FOR DETAILS ON SEVERE TROPICAL STORM FUNG-WONG (1927), PLEASE REFER TO THE 3-HRLY SHIPPING WARNINGS. THE NORTHEAST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 220100 UTC:

HONG KONG= NE 4-5. FINE. SEA UP TO 2 M. SWELL NE 2-3 M. TEMP 26-21 C. =
KWANGTUNG= E TO NE 4-5, UP TO 6 IN E. FINE. SEA UP TO 3 M. SWELL NE 3-4 M. =
TAIWAN STRAIT= NE 7-8. CLD. SEA 4-6 M. SWELL NE 4-6 M. =
BASHI= N TO NE 8-9, OCNL 10. DOWN TO 500 M IN FRQ HEAVY SQUALLY SHOWERS AND TS. SEA UP TO 10 M. SWELL NE 4-6 M. =
PRATAS= NE 5-6, OCNL 7. ISOL SHOWERS. SEA UP TO 4 M. SWELL NE 3-4 M. =
BALINTANG= N TO NW 6-7. DOWN TO 500 M IN FRQ HEAVY SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL NE 4-6 M. =
SCARBOROUGH= N TO NE 6-7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL NE 4-6 M. =
PARACEL= E TO NE 4-5, OCNL 6. ISOL SHOWERS. SEA UP TO 3 M. SWELL NE 2-3 M. =
TONKIN= NE 4-5. FINE. SEA UP TO 2 M. =
DANANG= E TO NE 4-5. CLD. SEA UP TO 2 M. SWELL 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
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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 22/Nov/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 4:30 p.m. on 22 November 2019

    Warnings:
    Strong winds in Nan'ao.

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

    Severe Tropical Storm Fung-wong has weakened into a Tropical Storm. At 4 p.m., Fung-wong with maximum sustained winds of about 85 kilometres per hour near its centre was located at 23.9 degrees north, 125.5 degrees east. It is forecast to move north or north-northeast at about 15 kilometres per hour towards the East China Sea and weaken.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East to northeast force 4 to 5.
    Moderate seas.

    Nan'ao:
    Northeast force 4 to 5, occasionally force 6.
    Moderate to rough seas.

    Shanwei, South of Hong Kong and Shangchuan Dao:
    East to northeast force 4 to 5.
    Moderate seas.

    Outlook for the next 48 hours
    East to northeasterly winds of force 4 to 5, force 6 to 7 later.

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

    Waglan Island Wind east force 2
      Visibility 36 Kilometres

    Shantou Wind south-southeast force 2
      Visibility 25 Kilometres

    Dongsha Wind north-northeast force 4
      Visibility 10 Kilometres

    Huangmaozhou Wind east force 2

    Macau Wind north-northeast force 2
      Visibility 12 Kilometres

    Xisha Wind northeast force 3
      Visibility 19 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 22/NOV/2019
    (Next update at 01:30 HKT 23/NOV/2019)
    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 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  090/5-10
       OFFSHORE:  070/10-15                            25-19
   B.   2000 FT:  090/10-15                            18
   C.   5000 FT:  060/10-15                            15
   D.  10000 FT:  240/10                               9
   E.  18000 FT:  230/25                               MS2
   F.  24000 FT:  240/40                               MS15
   G.  30000 FT:  240/45                               MS28
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY FINE.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 3000 FT.
   K. VISIBILITY    : 10 KM.
   L. 0 DEG. C LEVEL: 17000 FT      10 DEG. C LEVEL(S) : 7400 FT
   M. TURBULENCE    : NIL.
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 24 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EAST TO NORTHEASTERLY WINDS. 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.

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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

    Tropical Cyclone Warning |  Track and Positions of Tropical Cyclones
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    Bulletin issued at 12:30 HKT 22/Nov/2019


    Tropical Cyclone Warning

    At 220300 UTC, Severe Tropical Storm Fung-wong (1927) with central pressure 984 hectopascals was centred within 60 nautical miles of two three point three degrees north (23.3 N) one two five point one degrees east (125.1 E) and is forecast to move north or north-northeast at about 8 knots for the next 24 hours.

    Maximum winds near the centre are estimated to be 50 knots.

    Radius of over 33 knot winds 60 nautical miles.
    Radius of over 47 knot winds 30 nautical miles.
    Radius of over 2 metre waves 120 nautical miles.

    No further warnings on this Severe Tropical Storm will be issued by the Hong Kong Observatory unless it re-enters the Hong Kong area of responsibility.

    Forecast position and intensity at 230300 UTC
    Two six point three degrees north (26.3 N)
    One two five point three degrees east (125.3 E)
    Maximum winds 25 knots.

    Forecast position and intensity at 240300 UTC
    Dissipated over sea.



    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 22/Nov/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     25.2 C
Minimum Air Temperature                     19.2 C
Grass Minimum Temperature                   17.0 C
Relative Humidity                        49 - 78 Percent
Rainfall                                      Trace 
Total rainfall since 1st January          2382.7 mm
Against an average of                     2364.2 mm

Other Stations                Min                  Max
King's Park                  18.6 C               25.3 C
Wong Chuk Hang               17.3 C               24.6 C
Ta Kwu Ling                  13.1 C               26.0 C
Lau Fau Shan                 16.2 C               25.2 C
Tai Po                       16.6 C               25.4 C
Sha Tin                      16.6 C               25.5 C
Tuen Mun                     17.4 C               25.9 C
Tseung Kwan O                16.8 C               25.8 C
Sai Kung                     18.4 C               23.9 C
Cheung Chau                  17.8 C               27.4 C
Chek Lap Kok                 19.0 C               25.4 C
Tsing Yi                     17.6 C               26.0 C
Shek Kong                    14.8 C               26.2 C
Tsuen Wan Ho Koon            15.4 C               24.8 C
Tsuen Wan Shing Mun Valley   16.7 C               27.0 C
Hong Kong Park               19.1 C               26.2 C
Shau Kei Wan                 18.0 C               25.0 C
Kowloon City                 18.1 C               27.3 C
Happy Valley                 17.6 C               26.7 C
Wong Tai Sin                 18.2 C               27.2 C
Stanley                      19.2 C               24.6 C
Kwun Tong                    18.1 C               26.1 C
Sham Shui Po                 17.6 C               27.2 C
Kai Tak Runway Park          19.4 C               25.4 C
Yuen Long Park               15.1 C               27.5 C
Tai Mei Tuk               17.1 C               27.9 C

Duration of sunshine (King's Park):              10.0 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 (21 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                         0.12
Sha Tau Kok                         0.10
Kwun Tong                           0.13
Sai Wan Ho                          0.09
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 21 Nov
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