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Bulletin issued at 10:02 HKT 13/Oct/2019

At 10 a.m. at the Hong Kong Observatory the air temperature was 26 degrees Celsius and the relative humidity 89 per cent.
During the past hour the mean UV Index recorded at King's Park was 2. The intensity of UV radiation was low.

The air temperatures at other places were:

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


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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Hong Kong Climatology


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Bulletin updated at 09:45 HKT 13/Oct/2019

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

The northeast monsoon associated with a cold front is bringing rainy and slightly cooler weather to the coast of Guangdong.

Weather forecast for today

Cloudy with a few rain patches. Moderate east to northeasterly winds, occasionally fresh offshore.

Outlook : There will still be rain tomorrow. Winds will strengthen from the east and it will be slightly cooler. Fine and dry midweek this week.


(The above forecast period is valid up to 23:59 HKT today, 13/10/2019; 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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Weather Information for the Marine Community

Bulletin issued at 09:00 HKT 13/Oct/2019

N0 WARNING.

GENERAL SITUATION AT 122100 UTC:
COLD FRONT 22N 110E 23N 116E S 10KT.

MARINE FORECAST FOR 24 HOURS FROM 130100 UTC:

HONG KONG= E TO NE 4-5, 6 LATER. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 2 M, 3 M LATER. TEMP 29-24 C. =
KWANGTUNG= E TO NE 4-5, OCNL 6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 3 M. SWELL NE 2 M. =
TAIWAN STRAIT= NE 6-7. ISOL SHOWERS. SEA 3-4 M. SWELL NE 2-3 M. =
BASHI= E TO NE 5-6. ISOL SHOWERS. SEA 2-3 M. SWELL NE 2-3 M. =
PRATAS= E TO NE 5-6. ISOL SHOWERS. SEA 2-3 M. SWELL NE 2 M. =
BALINTANG= E TO NE 5-6. ISOL SHOWERS. SEA 2-3 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. ISOL SHOWERS. SEA UP TO 2 M. =
TONKIN= E TO NE 4-5. ISOL SHOWERS. SEA UP TO 2 M. =
DANANG= E TO NE 4-5. ISOL SHOWERS. SEA UP TO 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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    9-day Weather Forecast | UV Index Forecast | Weather Information for Fishermen

    Bulletin issued at 09:30 HKT 13/Oct/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 9:30 a.m. on 13 October 2019

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

    Weather Situation:
    A northeasterly airstream 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, force 6 later.
    Isolated squally showers and thunderstorms.
    Moderate to rough seas.

    Nan'ao and Shanwei:
    East to northeast force 4 to 5, occasionally force 6.
    Isolated showers and thunderstorms.
    Moderate to rough seas.

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

    Shangchuan Dao:
    East to northeast force 4 to 5.
    Isolated squally showers and thunderstorms.
    Moderate seas.

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

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

    Waglan Island Wind north-northeast force 3
      Visibility 26 Kilometres

    Shantou Wind east-northeast force 1
      Visibility 13 Kilometres

    Dongsha Wind east-northeast force 2
      Visibility 10 Kilometres

    Huangmaozhou Wind northeast force 3

    Macau Wind northeast force 2
      Visibility 6 Kilometres in rain

  • 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 13/OCT/2019
    (Next update at 12:30 HKT 13/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 COLD FRONT HAS MOVED ACROSS THE COAST OF
     GUANGDONG AND THE ASSOCIATED NORTHEAST MONSOON
     IS AFFECTING THE REGION.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  060/10-15
                  TEMPO VRB/15G25 IN TS
       OFFSHORE:  060/15-20                            25-30
   B.   2000 FT:  080/10-15                            22
   C.   5000 FT:  090/10-15                            17
   D.  10000 FT:  090/10                               9
   E.  18000 FT:  090/10                               MS4
   F.  24000 FT:  030/10                               MS14
   G.  30000 FT:  360/20                               MS26
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      CLOUDY. ISOLATED SHOWERS. ISOLATED
      THUNDERSTORMS AT FIRST.
   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.
   N. SEA STATE     : 2.0-2.5 M     SEA TEMPERATURE    : 28 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH EAST TO NORTHEASTERLY WINDS.
     MAINLY CLOUDY WITH OCCASIONAL RAIN.=

    ===================================================================
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 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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