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Bulletin issued at 04:02 HKT 20/Oct/2019

At 4 a.m. at the Hong Kong Observatory the air temperature was 24 degrees Celsius and the relative humidity 93 per cent.

The air temperatures at other places were:

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

Between 2:45 and 3:45 a.m., the rainfall recorded in various regions were:

Kwun Tong 2 to 28 mm;
Kowloon City 0 to 11 mm;
Sai Kung 0 to 9 mm;
Wan Chai 3 to 6 mm;
Southern District 0 to 5 mm;
Eastern District 0 to 5 mm;
Central & Western District 0 to 3 mm;
Yau Tsim Mong 1 to 2 mm;
Tai Po 0 to 2 mm;
Sham Shui Po 0 to 1 mm;
Wong Tai Sin 0 to 1 mm;
Islands District 0 to 1 mm.


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


Climatological Information for 20 Oct

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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Bulletin updated at 03:45 HKT 20/Oct/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.

Typhoon Neoguri has intensified into a severe typhoon. At 3 a.m., Neoguri was centred about 380 kilometres south of Okinawa. It is forecast to move north or north-northeast at about 14 kilometres per hour across the seas east of Taiwan.

Weather forecast for today

Mainly fine. One or two rain patches in the morning. Dry during the day. Temperatures will range between 24 and 29 degrees. Moderate easterly winds, fresh offshore at first.

Outlook : Mainly fine in the following couple of days. Cloudier with one or two showers in the middle and latter parts of this week.


(The above forecast period is valid up to 23:59 HKT today, 20/10/2019; 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 21:00 HKT 19/Oct/2019

GALE WARNING AREAS: BASHI AND BALINTANG.

GENERAL SITUATION AT 190900 UTC:
THE NORTHEAST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 191300 UTC:

HONG KONG= E TO NE 4-5. RAIN PATCHES AT FIRST. SEA UP TO 2 M. SWELL NE 2 M. TEMP 24-29 C. =
KWANGTUNG= E TO NE 5-6, OCNL 7 IN E. RAIN PATCHES AT FIRST. SEA 2-3 M, UP TO 4 M IN E. SWELL NE 2 M. =
TAIWAN STRAIT= NE 6-7. CLD. SEA 3-4 M. SWELL NE 2-3 M. =
BASHI= N 6-7, OCNL 8. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 6 M. SWELL NE 3 M. =
PRATAS= NE 5-6. RAIN PATCHES. SEA 2-3 M. SWELL NE 2-3 M. =
BALINTANG= N 6-7, OCNL 8. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 6 M. SWELL NE 3 M. =
SCARBOROUGH= N TO NE 5-6. ISOL SHOWERS. SEA 2-3 M. SWELL NE 2 M. =
PARACEL= NE 4-5, OCNL 6. ISOL SHOWERS. SEA UP TO 3 M. SWELL NE 2 M. =
TONKIN= E TO NE 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. =
DANANG= E TO NE 4-5, OCNL 6. ISOL SHOWERS AND TS. SEA UP TO 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.


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    • SOUTH CHINA COASTAL WATERS
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    South China Coastal Waters

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    Bulletin issued at 03:30 HKT 20/Oct/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 3:30 a.m. on 20 October 2019

    Warnings:
    Strong winds in Nan'ao and Shanwei.

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

    Typhoon Neoguri has intensified into a severe typhoon. At 3 a.m., Neoguri with maximum sustained winds of about 165 kilometres per hour near its centre was located at 22.8 degrees north, 127.6 degrees east. It is forecast to move north or north-northeast at about 14 kilometres per hour across the seas east of Taiwan.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East to northeast force 4 to 5.
    One or two rain patches in the morning.
    Moderate seas.

    Nan'ao:
    Northeast force 5 to 6, occasionally force 7.
    Moderate to rough seas.

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

    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 5 to 6, up to force 7 in east at first.

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

    Waglan Island Wind east force 5
      Visibility 20 Kilometres

    Shantou Wind east force 2
      Visibility 30 Kilometres

    Dongsha Wind north-northeast force 4
      Visibility 10 Kilometres

    Huangmaozhou Wind east-southeast force 3

    Macau Wind east force 2
      Visibility 11 Kilometres

    Xisha Wind east-northeast force 2
      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 01:30 HKT 20/OCT/2019
    (Next update at 9:00-9:30 HKT 20/OCT/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 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  070/10, OCNL 15
       OFFSHORE:  070/15-20                            24-28
   B.   2000 FT:  090/15-20                            20
   C.   5000 FT:  360/15-20                            14
   D.  10000 FT:  270/10                               10
   E.  18000 FT:  290/25                               MS6
   F.  24000 FT:  270/35                               MS19
   G.  30000 FT:  280/45                               MS31
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY FINE. A FEW RAIN PATCHES IN THE MORNING.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 3000 FT
   K. VISIBILITY    : 10 KM. TEMPO 4000 M IN RAIN.
   L. 0 DEG. C LEVEL: 15500 FT      10 DEG. C LEVEL(S) : 10000 FT
   M. TURBULENCE    : MOD OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 2.0-2.5 M     SEA TEMPERATURE    : 28 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EASTERLY WINDS, FRESH 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)

    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 20/Oct/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     29.6 C
Minimum Air Temperature                     24.2 C
Grass Minimum Temperature                   23.7 C
Relative Humidity                        61 - 80 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January          2379.2 mm
Against an average of                     2310.5 mm

Other Stations                Min                  Max
King's Park                  23.8 C               28.9 C
Wong Chuk Hang               22.1 C               28.9 C
Ta Kwu Ling                  19.2 C               30.1 C
Lau Fau Shan                 21.4 C               29.3 C
Tai Po                       21.8 C               28.3 C
Sha Tin                      22.2 C               29.3 C
Tuen Mun                     22.8 C               30.3 C
Tseung Kwan O                21.6 C               28.9 C
Sai Kung                     23.5 C               28.0 C
Cheung Chau                  22.6 C               29.8 C
Chek Lap Kok                 24.1 C               29.2 C
Tsing Yi                     23.0 C               29.8 C
Shek Kong                    20.8 C               30.3 C
Tsuen Wan Ho Koon            21.0 C               28.2 C
Tsuen Wan Shing Mun Valley   21.2 C               30.2 C
Hong Kong Park               23.7 C               29.8 C
Shau Kei Wan                 23.4 C               29.0 C
Kowloon City                 23.4 C               29.4 C
Happy Valley                 22.9 C               29.2 C
Wong Tai Sin                 23.4 C               29.4 C
Stanley                      23.5 C               27.8 C
Kwun Tong                    23.4 C               28.2 C
Sham Shui Po                 23.0 C               30.7 C
Kai Tak Runway Park          24.0 C               28.0 C
Yuen Long Park               21.4 C               31.2 C
Tai Mei Tuk               23.0 C               30.4 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 (19 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                         0.11
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 19 Oct
     2003copy right image | Important notices | Privacy policy Last revision date: <20 Oct 2019> 

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