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Bulletin issued at 13:02 HKT 21/Nov/2019

At 1 p.m. at the Hong Kong Observatory the air temperature was 25 degrees Celsius and the relative humidity 49 per cent.
During the past hour the mean UV Index recorded at King's Park was 5. The intensity of UV radiation was moderate.

The air temperatures at other places were:

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

Here is the information on Severe Tropical Storm Fung-wong at noon:
Location: 20.7 degrees north, 124.3 degrees east.


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


Climatological Information for 21 Nov

Regional Weather in Hong Kong

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Bulletin updated at 12:45 HKT 21/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.

At noon, Severe Tropical Storm Fung-wong was centred about 470 kilometres east-southeast of Gaoxiong. It is forecast to move northwest or north-northwest at about 12 kilometres per hour towards the seas east of Taiwan.

Weather forecast for this afternoon and tonight

Fine and dry. Moderate east to northeasterly winds.

Outlook : Fine with temperatures rising gradually in the next couple of days. Temperature difference between day and night will be relatively large over inland areas.


(The above forecast period is valid up to 23:59 HKT today, 21/11/2019; 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 21/Nov/2019

STORM WARNING AREA: BASHI.
GALE WARNING AREAS: TAIWAN STRAIT, PRATAS, BALINTANG AND SCARBOROUGH.

GENERAL SITUATION AT 202100 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 210100 UTC:

HONG KONG= E TO NE 4-5, OCNL 6. FINE. SEA UP TO 3 M. SWELL NE 2-3 M. TEMP 25-20 C. =
KWANGTUNG= E TO NE 5-6, UP TO 7 IN E AT FIRST. CLD. SEA 2-3 M, UP TO 4 M IN E AT FIRST. SWELL NE 3 M. =
TAIWAN STRAIT= NE 7-8. CLD. SEA 4-6 M. SWELL NE 3-5 M. =
BASHI= N TO NE 8-9, BEC CYCLONIC 9-10. DOWN TO 500 M IN FRQ HEAVY SQUALLY SHOWERS AND TS. SEA 6-8 M, BEC 8-10 M. SWELL N TO NE 3-5 M. =
PRATAS= NE 6-7, OCNL 8 AT FIRST. ISOL SHOWERS. SEA 3-4 M, UP TO 6 M AT FIRST. SWELL NE 3-5 M. =
BALINTANG= N TO NE 7-8, BEC N TO NW 8-9. DOWN TO 500 M IN FRQ HEAVY SQUALLY SHOWERS AND TS. SEA 4-6 M, BEC 6-8 M. SWELL N TO NE 3-5 M. =
SCARBOROUGH= N TO NE 7-8, BEC 6-7. DOWN TO 1000 M IN OCNL SQUALLY SHOWERS AND TS. SEA 4-6 M, BEC 3-4 M. SWELL N TO NE 3-5 M. =
PARACEL= NE 6-7, BEC 5-6. ISOL SHOWERS. SEA 3-4 M, BEC 2-3 M. SWELL NE 3-5 M. =
TONKIN= NE 4-5, OCNL 6. CLD. SEA UP TO 3 M. =
DANANG= NE 4-5, OCNL 6. CLD. SEA UP TO 3 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.


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    • SOUTH CHINA COASTAL WATERS
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    South China Coastal Waters

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    Bulletin issued at 12:30 HKT 21/Nov/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 12:30 p.m. on 21 November 2019

    Warnings:
    Strong winds in all areas.

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

    At noon, Severe Tropical Storm Fung-wong with maximum sustained winds of about 105 kilometres per hour near its centre was located at 20.7 degrees north, 124.3 degrees east. It is forecast to move northwest or north-northwest at about 12 kilometres per hour towards the seas east of Taiwan.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East to northeast force 4 to 5, occasionally force 6.
    Moderate to rough seas.

    Nan'ao:
    Northeast force 5 to 6.
    Rough seas.

    Shanwei and South of Hong Kong:
    East to northeast force 5 to 6.
    Moderate to rough seas.

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

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

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

    Waglan Island Wind north-northeast force 2

    Shantou Wind east-northeast force 2
      Visibility 30 Kilometres

    Dongsha Wind north-northeast force 5
      Visibility 10 Kilometres

    Huangmaozhou Wind north-northeast force 3

    Xisha Wind north-northeast force 3
      Visibility 12 Kilometres

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    • WEATHER FORECAST FOR LOCAL AVIATION
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    Weather Forecast for Local Aviation

    Bulletin issued at 12:30 HKT 21/NOV/2019
    (Next update at 17:30 HKT 21/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.
     AT NOON., SEVERE TROPICAL STORM FUNG-WONG WAS
     CENTRED ABOUT 20.7 DEGREES NORTH, 124.3 DEGREES
     EAST. IT IS FORECAST TO MOVE NORTHWEST OR
     NORTH-NORTHWEST AT ABOUT 6 KNOTS TOWARDS THE
     SEAS EAST OF TAIWAN.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1300 TO 2300 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  080/10
       OFFSHORE:  080/10-15                            26-19
   B.   2000 FT:  040/10-15                            15
   C.   5000 FT:  020/20                               13
   D.  10000 FT:  340/15                               5
   E.  18000 FT:  290/20                               MS2
   F.  24000 FT:  260/30                               MS14
   G.  30000 FT:  270/40                               MS28
   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) : 7600 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.

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    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 12:30 HKT 21/Nov/2019


    Tropical Cyclone Warning

    At 210300 UTC, Severe Tropical Storm Fung-wong (1927) with central pressure 975 hectopascals was centred within 60 nautical miles of two zero point six degrees north (20.6 N) one two four point four degrees east (124.4 E) and is forecast to move northwest or north-northwest at about 6 knots for the next 24 hours.

    Maximum winds near the centre are estimated to be 60 knots.

    Radius of over 33 knot winds 120 nautical miles.
    Radius of over 47 knot winds 60 nautical miles.
    Radius of over 2 metre waves 240 nautical miles.

    Forecast position and intensity at 220300 UTC
    Two two point five degrees north (22.5 N)
    One two three point one degrees east (123.1 E)
    Maximum winds 45 knots.

    Forecast position and intensity at 230300 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 21/Nov/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     24.0 C
Minimum Air Temperature                     19.4 C
Grass Minimum Temperature                   17.2 C
Relative Humidity                        55 - 74 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January          2382.7 mm
Against an average of                     2361.0 mm

Other Stations                Min                  Max
King's Park                  18.8 C               24.2 C
Wong Chuk Hang               18.1 C               24.0 C
Ta Kwu Ling                  14.9 C               24.9 C
Lau Fau Shan                 16.1 C               24.5 C
Tai Po                       16.7 C               23.1 C
Sha Tin                      17.2 C               24.1 C
Tseung Kwan O                16.7 C               24.6 C
Sai Kung                     18.4 C               23.0 C
Cheung Chau                  17.0 C               25.4 C
Chek Lap Kok                 18.8 C               23.6 C
Tsing Yi                     18.7 C               25.6 C
Shek Kong                    16.8 C               25.0 C
Tsuen Wan Ho Koon            16.1 C               22.9 C
Tsuen Wan Shing Mun Valley   17.5 C               25.5 C
Hong Kong Park               18.7 C               25.4 C
Shau Kei Wan                 18.3 C               23.8 C
Kowloon City                 18.3 C               24.7 C
Happy Valley                 18.1 C               25.2 C
Wong Tai Sin                 18.7 C               25.1 C
Stanley                      19.3 C               22.8 C
Kwun Tong                    18.3 C               23.6 C
Sham Shui Po                 18.3 C               26.3 C
Kai Tak Runway Park          18.8 C               25.3 C
Yuen Long Park               16.7 C               25.4 C
Tai Mei Tuk               17.8 C               25.1 C

Duration of sunshine (King's Park):              6.3 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 (20 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                         0.11
Kwun Tong                           0.13
Sai Wan Ho                          0.10
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 20 Nov
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