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Bulletin issued at 22:02 HKT 13/Oct/2019

At 10 p.m. at the Hong Kong Observatory the air temperature was 26 degrees Celsius and the relative humidity 93 per cent.

Gusts reaching 70 kilometres per hour or above may continue to affect Hong Kong.

Please be reminded that:

The Thunderstorm Warning has been issued. It will remain effective until 11:00 p.m. today. Isolated squally thunderstorms are expected to occur over Lantau, New Territories East, Hong Kong Island and Kowloon.

The air temperatures at other places were:

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

Between 8:45 and 9:45 p.m., lightning was detected within Lantau, New Territories East, Hong Kong and Kowloon. The rainfall recorded in various regions were:

Islands District 0 to 20 mm;
Sham Shui Po 2 to 9 mm;
Kowloon City 1 to 8 mm;
Kwai Tsing 0 to 7 mm;
Kwun Tong 1 to 5 mm;
Wong Tai Sin 2 to 4 mm;
Sha Tin 0 to 4 mm;
Sai Kung 0 to 3 mm;
Eastern District 1 to 2 mm;
Yau Tsim Mong 1 mm;
Wan Chai 0 to 1 mm;
Southern District 0 to 1 mm;
Tai Po 0 to 1 mm.


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


Climatological Information for 13 Oct

Regional Weather in Hong Kong

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Bulletin updated at 21:45 HKT 13/Oct/2019

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

Thundery showers are affecting the coastal areas of Guangdong.

Weather forecast for tonight and tomorrow

Mainly cloudy with a few showers. There will be more showers and isolated squally thunderstorms tonight and tomorrow morning. Temperatures will range between 25 and 28 degrees. Moderate east to northeasterly winds, fresh offshore later tomorrow.

Outlook : Becoming fine and dry with slightly cooler mornings in the following few days. Windy on Tuesday.


(The above forecast period is valid up to 23:59 HKT tomorrow, 14/10/2019; 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 13/Oct/2019

GALE WARNING AREAS: KWANGTUNG AND TAIWAN STRAIT.

GENERAL SITUATION AT 130900 UTC:
THE NORTHEAST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 131300 UTC:

HONG KONG= E TO NE 4-5, BEC 6. ISOL SHOWERS AND TS. SEA UP TO 2 M, BEC 3 M. TEMP 29-24 C. =
KWANGTUNG= E TO NE 5-6, BEC 7-8 IN E. ISOL SHOWERS AND TS. SEA 2-3 M, BEC 4-6 M IN E. SWELL NE 2-3 M. =
TAIWAN STRAIT= NE 6-7, BEC 8. FINE. SEA 3-4 M, BEC 6 M. SWELL NE 2-3 M. =
BASHI= E TO NE 5-6, BEC 7. ISOL SHOWERS. SEA 2-3 M, BEC 4 M. SWELL NE 2-3 M. =
PRATAS= E TO NE 5-6, BEC 7. ISOL SHOWERS AND TS. SEA 2-3 M, BEC 4 M. SWELL NE 2 M. =
BALINTANG= E TO NE 5-6, BEC 7. ISOL SHOWERS. SEA 2-3 M, BEC 4 M. SWELL NE 2-3 M. =
SCARBOROUGH= NE 4-5, OCNL 6. FINE. SEA UP TO 3 M. SWELL NE 2 M. =
PARACEL= E TO NE 4-5, OCNL 6. ISOL SHOWERS AND TS. SEA UP TO 3 M. SWELL NE 2 M. =
TONKIN= E TO NE 4-5, OCNL 6. ISOL SHOWERS AND TS. SEA UP TO 3 M. =
DANANG= E TO NE 4-5, OCNL 6. ISOL SHOWERS AND TS. SEA UP TO 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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  • Tidal Information

    • SOUTH CHINA COASTAL WATERS
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    South China Coastal Waters

    Current Weather | Local Weather Forecast | Regional Temperature Forecast in HK
    9-day Weather Forecast | UV Index Forecast | Weather Information for Fishermen

    Bulletin issued at 21:15 HKT 13/Oct/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 9:15 p.m. on 13 October 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.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East to northeast force 4 to 5, becoming force 6.
    Isolated showers and squally thunderstorms.
    Moderate seas, becoming rough seas.

    Nan'ao:
    East to northeast force 5 to 6, becoming force 7 to 8.
    Isolated showers and thunderstorms.
    Moderate to rough seas, becoming rough to very rough seas.

    Shanwei:
    East to northeast force 5 to 6, becoming force 7.
    Isolated showers and thunderstorms.
    Moderate to rough seas.

    South of Hong Kong:
    East to northeast force 4 to 5, becoming force 6 to 7.
    Isolated showers and squally thunderstorms.
    Moderate seas, becoming rough seas.

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

    Outlook for the next 48 hours
    East to northeasterly winds of force 6 to 7, up to force 8 in east. Isolated showers and thunderstorms.

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

    Waglan Island Wind northeast force 4
      Visibility 13 Kilometres

    Shantou Wind east force 2
      Visibility 19 Kilometres

    Huangmaozhou Wind east force 4

  • 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 13/OCT/2019
    (Next update at 01:30 HKT 14/OCT/2019)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     A WEAK NORTHEAST MONSOON IS AFFECTING SOUTHERN
     CHINA. MEANWHILE, THERE ARE SHOWERS OVER THE
     COAST OF GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  070/10-15
                  TEMPO VRB/15G25 IN TS
       OFFSHORE:  070/15-20                            28-24
   B.   2000 FT:  090/10-15, 20 LATER                  22
   C.   5000 FT:  090/10-15                            17
   D.  10000 FT:  090/10                               9
   E.  18000 FT:  070/10                               MS4
   F.  24000 FT:  360/10                               MS14
   G.  30000 FT:  360/15                               MS27
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY CLOUDY. ISOLATED SHOWERS AND
      THUNDERSTORMS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT SCT 3000 FT.
      TEMPO FEW CB 1000 FT SCT 2000 FT BKN 4000 FT.
   K. VISIBILITY    : 8 KM. TEMPO 4000 M IN SHOWERS. 
                      TEMPO 2000 M IN TS.
   L. 0 DEG. C LEVEL: 14500 FT      10 DEG. C LEVEL(S) : 9000 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS. 
                      MOD OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 2.0-2.5 M     SEA TEMPERATURE    : 29 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EAST TO NORTHEASTERLY WINDS, FRESH
     OFFSHORE.
     MAINLY CLOUDY. ISOLATED SHOWERS. ISOLATED
     THUNDERSTORMS AT FIRST.=

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

    The latest significant weather information
    issued by the Hong Kong Observatory at 21:30 HKT on 13 Oct 19

    VHHK SIGMET 1 VALID 131330/131730 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2148 E11214 - N2307 E11522 - N2213 E11553 - N2058 E11237 - N2148 E11214 TOP FL360 MOV SW 15KT NC=

    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 13/Oct/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     31.5 C
Minimum Air Temperature                     27.4 C
Grass Minimum Temperature                   26.0 C
Relative Humidity                        68 - 84 Percent
Rainfall                                     0.3 mm 
Total rainfall since 1st January          2303.1 mm
Against an average of                     2282.3 mm

Other Stations                Min                  Max
King's Park                  26.2 C               30.6 C
Wong Chuk Hang               25.1 C               30.8 C
Ta Kwu Ling                  23.2 C               33.0 C
Lau Fau Shan                 25.6 C               31.9 C
Tai Po                       25.1 C               31.0 C
Sha Tin                      25.3 C               32.6 C
Tuen Mun                     25.9 C               32.4 C
Tseung Kwan O                24.6 C               32.0 C
Sai Kung                     25.9 C               32.3 C
Cheung Chau                  25.0 C               33.6 C
Chek Lap Kok                 26.4 C               32.8 C
Tsing Yi                     25.3 C               31.3 C
Shek Kong                    24.2 C               32.4 C
Tsuen Wan Ho Koon            24.0 C               30.6 C
Tsuen Wan Shing Mun Valley   24.1 C               32.3 C
Hong Kong Park               25.7 C               31.2 C
Shau Kei Wan                 26.5 C               31.7 C
Kowloon City                 24.5 C               33.4 C
Happy Valley                 25.8 C               32.6 C
Wong Tai Sin                 26.0 C               33.0 C
Stanley                      25.8 C               31.9 C
Kwun Tong                    26.5 C               32.0 C
Sham Shui Po                 25.9 C               33.3 C
Kai Tak Runway Park          27.0 C               31.4 C
Yuen Long Park               24.7 C               32.6 C
Tai Mei Tuk               25.7 C               34.1 C

Duration of sunshine (King's Park):              4.8 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 4.
 

Yesterday's (12 Oct 2019) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.09 to
0.14 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                        0.14

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 12 Oct
     2003copy right image | Important notices | Privacy policy Last revision date: <13 Oct 2019> 

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