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Bulletin issued at 17:02 HKT 07/Nov/2019

At 5 p.m. at the Hong Kong Observatory the air temperature was 25 degrees Celsius and the relative humidity 43 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 25 degrees;
Wong Chuk Hang 26 degrees;
Ta Kwu Ling 26 degrees;
Lau Fau Shan 26 degrees;
Tai Po 25 degrees;
Sha Tin 26 degrees;
Tuen Mun 25 degrees;
Tseung Kwan O 23 degrees;
Sai Kung 26 degrees;
Cheung Chau 24 degrees;
Chek Lap Kok 27 degrees;
Tsing Yi 26 degrees;
Shek Kong 26 degrees;
Tsuen Wan Ho Koon 25 degrees;
Tsuen Wan Shing Mun Valley 25 degrees;
Hong Kong Park 25 degrees;
Shau Kei Wan 25 degrees;
Kowloon City 25 degrees;
Happy Valley 26 degrees;
Wong Tai Sin 26 degrees;
Stanley 25 degrees;
Kwun Tong 25 degrees;
Sham Shui Po 26 degrees;
Kai Tak Runway Park 26 degrees;
Yuen Long Park 26 degrees;
Tai Mei Tuk 25 degrees.

Here is the information on Severe Tropical Storm Nakri at 4 p.m.:
Location: 13.5 degrees north, 117.2 degrees east.


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


Climatological Information for 7 Nov

Regional Weather in Hong Kong

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Hong Kong Climatology


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Bulletin updated at 16:45 HKT 07/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 many places stayed around 40 per cent in the afternoon.

At 4 p.m., Severe Tropical Storm Nakri was centred about 460 kilometres northeast of Nansha. It is forecast to be slow-moving, lingering over the central and southern parts of the South China Sea.

Weather forecast for tonight and tomorrow

Fine and dry. The minimum temperature tomorrow morning will be about 21 degrees in the urban areas, and a couple of degrees lower in the New Territories. The maximum temperature will be around 27 degrees during the day. Moderate north to northeasterly winds, occasionally strong offshore later tomorrow.

Outlook : Mainly fine in the following few days. Windy and slightly cooler in the morning and at night over the weekend.


(The above forecast period is valid up to 23:59 HKT tomorrow, 08/11/2019; 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 07/Nov/2019

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

GENERAL SITUATION AT 062100 UTC:
FOR DETAILS ON TROPICAL STORM NAKRI (1924), PLEASE REFER TO THE 3-HRLY SHIPPING WARNINGS. THE NORTHEAST MONSOON IS GENERALLY AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 070100 UTC:

HONG KONG= N TO NE 5-6, UP TO 7 LATER. FINE. SEA 2-3 M, UP TO 4 M LATER. SWELL NE 3 M, SE 2-3 M. TEMP 27-21 C. =
KWANGTUNG= N TO NE 6-7, UP TO 8 IN E. FINE. SEA 3-4 M, UP TO 6 M IN E. SWELL NE 3 M, SE 3 M. =
TAIWAN STRAIT= NE 7-8. RAIN PATCHES. SEA 4-6 M. SWELL NE 3-4 M. =
BASHI= NE 7-8. ISOL SHOWERS AND TS. SEA 4-6 M. SWELL NE 3-4 M. =
PRATAS= NE 7-8. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 4-6 M. SWELL NE 3-4 M, SE 3 M. =
BALINTANG= NE 7-8. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 4-6 M. SWELL NE 3-4 M. =
SCARBOROUGH= NE 7-8, 9 LATER. DOWN TO 500 M IN FRQ HEAVY SQUALLY SHOWERS AND TS. SEA 4-6 M, 8 M LATER. SWELL NE 4-5 M, SE 4 M. =
PARACEL= N TO NE 7-8, 9 LATER. DOWN TO 500 M IN FRQ HEAVY SQUALLY SHOWERS AND TS. SEA 4-6 M, 8 M LATER. SWELL NE 4-5 M, SE 4 M. =
TONKIN= N TO NE 5-6. FINE. SEA 2-3 M. =
DANANG= N 6-7. ISOL SHOWERS AND TS. SEA 3-4 M. SWELL NE 4 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 07/Nov/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 4:30 p.m. on 07 November 2019

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

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

    At 4 p.m., Severe Tropical Storm Nakri with maximum sustained winds of about 90 kilometres per hour near its centre was located at 13.5 degrees north, 117.2 degrees east. It is forecast to be slow-moving, lingering over the central part of the South China Sea.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    North to northeast force 5 to 6, up to force 7 later.
    Moderate to rough seas.

    Nan'ao:
    Northeast force 6 to 7, occasionally force 8.
    Rough to very rough seas.

    Shanwei, South of Hong Kong and Shangchuan Dao:
    North to northeast force 6 to 7.
    Rough seas.

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

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

    Waglan Island Wind north-northeast force 3
      Visibility 32 Kilometres

    Shantou Wind southeast force 2
      Visibility 30 Kilometres

    Dongsha Wind north-northeast force 4
      Visibility 10 Kilometres

    Huangmaozhou Wind east force 3

    Macau Wind north-northeast force 3
      Visibility 14 Kilometres

    Xisha Wind north-northeast force 3
      Visibility 14 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 07/NOV/2019
    (Next update at 01:30 HKT 08/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., SEVERE TROPICAL STORM NAKRI WAS
     LOCATED AT 13.5 DEGREES NORTH, 117.2 DEGREES
     EAST. IT IS FORECAST TO BE SLOW-MOVING,
     LINGERING OVER THE CENTRAL AND SOUTHERN PARTS OF
     THE SOUTH CHINA SEA.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  020/10-15, 20 LATER
       OFFSHORE:  020/15-20, 25 LATER                  26-19
   B.   2000 FT:  020/15-20, 25 LATER                  17
   C.   5000 FT:  070/20                               12
   D.  10000 FT:  350/20                               9
   E.  18000 FT:  320/30                               MS5
   F.  24000 FT:  270/30                               MS11
   G.  30000 FT:  270/30                               MS25
   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: 15000 FT      10 DEG. C LEVEL(S) : 9800 FT
   M. TURBULENCE    : MOD TO SEV
   N. SEA STATE     : 2.0-3.5 M     SEA TEMPERATURE    : 25 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH NORTH 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.

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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)

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    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 07/Nov/2019


    Tropical Cyclone Warning

    At 070600 UTC, Severe Tropical Storm Nakri (1924) with central pressure 984 hectopascals was centred within 90 nautical miles of one three point five degrees north (13.5 N) one one seven point two degrees east (117.2 E) and is forecast to be slow moving for the next 24 hours.

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

    Radius of over 33 knot winds 150 nautical miles.
    Radius of over 47 knot winds 60 nautical miles.
    Radius of over 2 metre waves 300 nautical miles.

    Forecast position and intensity at 080600 UTC
    One three point two degrees north (13.2 N)
    One one six point four degrees east (116.4 E)
    Maximum winds 60 knots.

    Forecast position and intensity at 090600 UTC
    One three point one degrees north (13.1 N)
    One one three point six degrees east (113.6 E)
    Maximum winds 65 knots.

    Forecast position and intensity at 100600 UTC
    One three point five degrees north (13.5 N)
    One one zero point six degrees east (110.6 E)
    Maximum winds 60 knots.

    Forecast position and intensity at 110600 UTC
    One four point one degrees north (14.1 N)
    One zero seven point eight degrees east (107.8 E)
    Maximum winds 25 knots.

    Forecast position and intensity at 120600 UTC
    Dissipated over land.



    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 07/Nov/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     26.5 C
Minimum Air Temperature                     22.3 C
Grass Minimum Temperature                   20.3 C
Relative Humidity                        58 - 77 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January          2382.7 mm
Against an average of                     2345.1 mm

Other Stations                Min                  Max
King's Park                  21.4 C               26.2 C
Wong Chuk Hang               20.6 C               25.7 C
Ta Kwu Ling                  16.5 C               27.8 C
Lau Fau Shan                 19.3 C               27.1 C
Tai Po                       19.9 C               25.8 C
Sha Tin                      19.2 C               26.5 C
Tuen Mun                     20.1 C               27.6 C
Tseung Kwan O                20.3 C               26.3 C
Sai Kung                     21.2 C               24.7 C
Cheung Chau                  20.5 C               27.4 C
Chek Lap Kok                 22.2 C               27.4 C
Tsing Yi                     21.9 C               27.4 C
Shek Kong                    18.2 C               27.7 C
Tsuen Wan Ho Koon            19.0 C               26.3 C
Tsuen Wan Shing Mun Valley   19.0 C               27.9 C
Hong Kong Park               21.7 C               26.8 C
Shau Kei Wan                 21.4 C               26.0 C
Kowloon City                 20.7 C               27.3 C
Happy Valley                 21.5 C               27.0 C
Wong Tai Sin                 21.4 C               26.4 C
Stanley                      22.1 C               25.0 C
Kwun Tong                    21.3 C               25.5 C
Sham Shui Po                 21.2 C               28.7 C
Kai Tak Runway Park          22.4 C               25.2 C
Yuen Long Park               18.7 C               28.4 C
Tai Mei Tuk               20.2 C               28.3 C

Duration of sunshine (King's Park):              9.0 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 (06 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                          0.09
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 06 Nov
     2003copy right image | Important notices | Privacy policy Last revision date: <07 Nov 2019> 

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