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Bulletin issued at 04:02 HKT 14/Oct/2019

At 4 a.m. at the Hong Kong Observatory the air temperature was 24 degrees Celsius and the relative humidity 96 per cent.

Announcement on Localised Heavy Rain: Rain was particularly heavy in Sai Kung District and Eastern District of Hong Kong Island, with more than 70 millimetres of rainfall recorded in the past 1 hour ending at 3:20 a.m. and may cause serious flooding.

Please be reminded that:

The Amber Rainstorm Warning Signal has been issued.
The Thunderstorm Warning has been issued. It will remain effective until 6:00 a.m. today. Isolated squally thunderstorms are expected to occur over Hong Kong.

The air temperatures at other places were:

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

Between 2:45 and 3:45 a.m., lightning was detected within New Territories East, Hong Kong and Kowloon. The rainfall recorded in various regions were:

Sha Tin 20 to 56 mm;
Eastern District 28 to 56 mm;
Wong Tai Sin 20 to 47 mm;
Central & Western District 0 to 47 mm;
Tai Po 0 to 44 mm;
Southern District 0 to 43 mm;
Kwun Tong 16 to 41 mm;
Wan Chai 22 to 40 mm;
Kowloon City 21 to 40 mm;
Sham Shui Po 14 to 37 mm;
Sai Kung 3 to 36 mm;
Islands District 0 to 32 mm;
Yau Tsim Mong 19 to 30 mm;
Tsuen Wan 3 to 14 mm;
Kwai Tsing 8 to 11 mm;
North District 0 to 2 mm.


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


Climatological Information for 14 Oct

Regional Weather in Hong Kong

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Hong Kong Climatology


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Bulletin updated at 03:45 HKT 14/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 today

Mainly cloudy with showers. Showers will be heavy at first with isolated squally thunderstorms. Temperatures will range between 24 and 28 degrees. Moderate east to northeasterly winds, fresh offshore later.

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 today, 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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    • SOUTH CHINA COASTAL WATERS
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    South China Coastal Waters

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    9-day Weather Forecast | UV Index Forecast | Weather Information for Fishermen

    Bulletin issued at 03:30 HKT 14/Oct/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 3:30 a.m. on 14 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, heavy at times at first.
    Moderate seas, becoming rough.

    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.

    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.

    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 east force 5
      Visibility 19 Kilometres

    Shantou Wind east-southeast force 2
      Visibility 23 Kilometres

    Huangmaozhou Wind east-northeast force 5

    Macau Wind northeast force 1
      Visibility 5000 Metres

    Xisha Wind northeast force 3
      Visibility 17 Kilometres

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    • WEATHER FORECAST FOR LOCAL AVIATION
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    Weather Forecast for Local Aviation

    Bulletin issued at 01:30 HKT 14/OCT/2019
    (Next update at 9:00-9:30 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 :
     THE NORTHEAST MONSOON IS AFFECTING THE SOUTH
     CHINA COAST.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  050/10
                  TEMPO VRB/20G30 IN TS
       OFFSHORE:  070/15-20                            25-28
   B.   2000 FT:  080/10-15, OCNL 20                   23
   C.   5000 FT:  060/15, OCNL 20                      17
   D.  10000 FT:  070/10, OCNL 15                      10
   E.  18000 FT:  040/5-10                             MS3
   F.  24000 FT:  330/10                               MS14
   G.  30000 FT:  360/10-15                            MS25
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY CLOUDY WITH ISOLATED SHOWERS AND SQUALLY
      THUNDERSTORMS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT SCT 3000 FT.
      TEMPO FEW CB 1200 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: 16500 FT      10 DEG. C LEVEL(S) : 10000 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 TO FRESH EAST TO NORTHEASTERLY WINDS,
     OCCASIONALLY STRONG OFFSHORE.
     MAINLY CLOUDY WITH ISOLATED SHOWERS.=

    ===================================================================
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 01:31 HKT on 14 Oct 19

    VHHK SIGMET 2 VALID 131730/132130 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2156 E11234 - N2320 E11553 - N2201 E11544 - N2052 E11250 - N2156 E11234 TOP FL360 MOV SW 10KT 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 14/Oct/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     30.8 C
Minimum Air Temperature                     24.5 C
Grass Minimum Temperature                   24.7 C
Relative Humidity                        72 - 95 Percent
Rainfall                                    13.6 mm 
Total rainfall since 1st January          2316.7 mm
Against an average of                     2286.4 mm

Other Stations                Min                  Max
King's Park                  23.7 C               30.5 C
Wong Chuk Hang               24.0 C               29.7 C
Ta Kwu Ling                  23.5 C               30.4 C
Lau Fau Shan                 23.1 C               29.0 C
Tai Po                       22.9 C               28.4 C
Sha Tin                      23.8 C               29.6 C
Tuen Mun                     23.5 C               29.3 C
Tseung Kwan O                23.6 C               29.1 C
Sai Kung                     23.8 C               29.1 C
Cheung Chau                  23.1 C               29.9 C
Chek Lap Kok                 24.4 C               30.4 C
Tsing Yi                     23.5 C               29.9 C
Shek Kong                    23.2 C               30.9 C
Tsuen Wan Ho Koon            22.7 C               28.0 C
Tsuen Wan Shing Mun Valley   23.0 C               30.1 C
Hong Kong Park               23.5 C               29.7 C
Shau Kei Wan                 23.2 C               30.7 C
Kowloon City                 23.3 C               29.8 C
Happy Valley                 24.1 C               30.5 C
Wong Tai Sin                 23.7 C               30.1 C
Stanley                      23.7 C               30.0 C
Kwun Tong                    23.5 C               29.5 C
Sham Shui Po                 23.3 C               31.2 C
Kai Tak Runway Park          24.1 C               29.4 C
Yuen Long Park               23.3 C               31.1 C
Tai Mei Tuk               22.5 C               30.4 C

Duration of sunshine (King's Park):              5.0 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 7.
 

Yesterday's (13 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                           0.10
Tap Mun                             0.09
Kat O                               0.12
Yuen Ng Fan                         0.13
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                       0.14
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 13 Oct
     2003copy right image | Important notices | Privacy policy Last revision date: <14 Oct 2019> 

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