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Bulletin issued at 09:02 HKT 15/Oct/2019

At 9 a.m. at the Hong Kong Observatory the air temperature was 25 degrees Celsius and the relative humidity 77 per cent.
During the past hour the mean UV Index recorded at King's Park was 0.5. The intensity of UV radiation was low.

Strong winds are expected from the east. The public should beware of the possible danger brought by rough seas.

Please be reminded that:

The Strong Monsoon Signal has been issued.

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 24 degrees;
Tai Po 25 degrees;
Sha Tin 25 degrees;
Tuen Mun 25 degrees;
Tseung Kwan O 24 degrees;
Sai Kung 26 degrees;
Cheung Chau 24 degrees;
Chek Lap Kok 26 degrees;
Tsing Yi 26 degrees;
Shek Kong 25 degrees;
Tsuen Wan Ho Koon 23 degrees;
Tsuen Wan Shing Mun Valley 24 degrees;
Hong Kong Park 26 degrees;
Shau Kei Wan 26 degrees;
Kowloon City 25 degrees;
Happy Valley 26 degrees;
Wong Tai Sin 25 degrees;
Stanley 26 degrees;
Kwun Tong 25 degrees;
Sham Shui Po 25 degrees;
Kai Tak Runway Park 26 degrees;
Yuen Long Park 25 degrees;
Tai Mei Tuk 24 degrees.

Between midnight and 9 a.m. the minimum temperature was 24.0 degrees Celsius at the Hong Kong Observatory.


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


Climatological Information for 15 Oct

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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Bulletin updated at 08:45 HKT 15/Oct/2019

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

A strong northeast monsoon is affecting the coast of Guangdong.

Weather forecast for today

Becoming fine. Isolated showers at first. The maximum temperature will be about 28 degrees. Fresh east to northeasterly winds, strong offshore.

Outlook : Remaining fine with relatively large temperature difference between day and night in the next few days.


(The above forecast period is valid up to 23:59 HKT today, 15/10/2019; 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 09:00 HKT 15/Oct/2019

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

GENERAL SITUATION AT 142100 UTC:
THE NORTHEAST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 150100 UTC:

HONG KONG= E TO NE 6-7. ISOL SHOWERS. SEA 3-4 M. SWELL NE 3-4 M. TEMP 28-23 C. =
KWANGTUNG= E TO NE 6-7, UP TO 8 IN E. ISOL SHOWERS AND SQUALLY TS. SEA 3-4 M, UP TO 6 M IN E. SWELL NE 3-4 M. =
TAIWAN STRAIT= NE 7-8. RAIN PATCHES. SEA 4-6 M. SWELL NE 4 M. =
BASHI= E TO NE 7-8. ISOL SHOWERS AND TS. SEA 4-6 M. SWELL NE 2-3 M. =
PRATAS= E TO NE 7-8. ISOL SHOWERS. SEA 4-6 M. SWELL NE 2-3 M. =
BALINTANG= E TO NE 7-8. ISOL SHOWERS AND TS. SEA 4-6 M. SWELL NE 2-3 M. =
SCARBOROUGH= NE 5-6, OCNL 7. ISOL SHOWERS AND TS. SEA UP TO 4 M. SWELL NE 2-3 M. =
PARACEL= E TO NE 5-6, UP TO 7 IN N. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-3 M, UP TO 4 M IN N. SWELL NE 2-3 M. =
TONKIN= E TO NE 4-5, OCNL 6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 3 M. =
DANANG= E TO NE 4-5, OCNL 6. DOWN TO 4000 M IN ISOL SQUALLY 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.


  • Map showing the 10 forecast areas
  • 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 09:30 HKT 15/Oct/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 9:30 a.m. on 15 October 2019

    Warnings:
    Gale force winds in Hong Kong adjacent waters, Nan'ao, Shanwei and south of Hong Kong. Strong winds in 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 6 to 7, occasionally force 8.
    Isolated showers.
    Rough to very rough seas.

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

    Shanwei:
    East to northeast force 6 to 7, occasionally force 8.
    Rough to very rough seas.

    South of Hong Kong:
    East to northeast force 6 to 7, occasionally force 8.
    Isolated showers and thunderstorms.
    Rough to very rough seas.

    Shangchuan Dao:
    East to northeast force 6 to 7.
    Isolated showers and squally thunderstorms.
    Rough seas.

    Outlook for the next 48 hours
    East to northeasterly winds of force 6 to 7, up to force 8 in east at first.

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

    Waglan Island Wind east force 7
      Visibility 29 Kilometres

    Shantou Wind northeast force 1
      Visibility 30 Kilometres

    Dongsha Wind northeast force 4
      Visibility 10 Kilometres

    Huangmaozhou Wind east force 8

    Macau Wind east-northeast force 2
      Visibility 8 Kilometres

    Xisha Wind east-northeast force 3
      Visibility 15 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 09:30 HKT 15/OCT/2019
    (Next update at 12:30 HKT 15/OCT/2019)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     A STRONG NORTHEAST MONSOON IS AFFECTING THE
     COAST OF GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  070/15
       OFFSHORE:  070/25-30                            25-30
   B.   2000 FT:  070/20-25                            20
   C.   5000 FT:  060/25, OCNL 30                      15
   D.  10000 FT:  050/10                               9
   E.  18000 FT:  350/15                               MS5
   F.  24000 FT:  340/15                               MS14
   G.  30000 FT:  320/20                               MS28
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      BECOMING FINE. ISOLATED SHOWERS AT FIRST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT SCT 3000 FT.
   K. VISIBILITY    : 9 KM. TEMPO 4000 M IN SHOWERS.
   L. 0 DEG. C LEVEL: 15500 FT      10 DEG. C LEVEL(S) : 9400 FT
   M. TURBULENCE    : MOD TO SEV OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 3.5-4.5 M     SEA TEMPERATURE    : 29 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH EAST 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

    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 15/Oct/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     28.9 C
Minimum Air Temperature                     24.2 C
Grass Minimum Temperature                   23.4 C
Relative Humidity                        73 - 97 Percent
Rainfall                                    52.1 mm 
Total rainfall since 1st January          2368.8 mm
Against an average of                     2292.4 mm

Other Stations                Min                  Max
King's Park                  23.5 C               28.5 C
Wong Chuk Hang               23.3 C               29.0 C
Ta Kwu Ling                  24.0 C               29.4 C
Lau Fau Shan                 23.9 C               28.7 C
Tai Po                       23.4 C               27.6 C
Sha Tin                      23.6 C               28.7 C
Tuen Mun                     24.2 C               28.6 C
Tseung Kwan O                23.2 C               29.0 C
Sai Kung                     23.7 C               28.1 C
Cheung Chau                  22.9 C               26.8 C
Chek Lap Kok                 24.0 C               29.6 C
Tsing Yi                     23.5 C               29.0 C
Shek Kong                    23.8 C               28.8 C
Tsuen Wan Ho Koon            22.9 C               27.8 C
Tsuen Wan Shing Mun Valley   23.3 C               28.9 C
Hong Kong Park               23.2 C               28.9 C
Shau Kei Wan                 23.1 C               27.9 C
Kowloon City                 23.2 C               28.2 C
Happy Valley                 23.3 C               29.5 C
Wong Tai Sin                 23.5 C               28.9 C
Stanley                      23.7 C               28.7 C
Kwun Tong                    23.3 C               29.0 C
Sham Shui Po                 23.5 C               28.9 C
Kai Tak Runway Park          23.7 C               28.3 C
Yuen Long Park               24.2 C               29.8 C
Tai Mei Tuk               23.9 C               29.1 C

Duration of sunshine (King's Park):              2.2 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 (14 Oct 2019) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.10 to
0.16 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                             0.10
Kat O                               0.11
Yuen Ng Fan                         0.14
Tai Mei Tuk                         0.12
Sha Tau Kok                         0.10
Kwun Tong                           0.14
Sai Wan Ho                          0.11
King's Park                         0.16
Tsim Bei Tsui                       0.13
Cape D'Aguilar                      0.15
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 14 Oct
     2003copy right image | Important notices | Privacy policy Last revision date: <15 Oct 2019> 

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