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Bulletin issued at 12:02 HKT 28/Sep/2019

At noon at the Hong Kong Observatory the air temperature was 30 degrees Celsius and the relative humidity 54 per cent.
During the past hour the mean UV Index recorded at King's Park was 7. The intensity of UV radiation was high.

Please be reminded that:

The Fire Danger Warning is Yellow and the fire risk is high.

The air temperatures at other places were:

King's Park 31 degrees;
Wong Chuk Hang 30 degrees;
Ta Kwu Ling 31 degrees;
Lau Fau Shan 30 degrees;
Tai Po 29 degrees;
Sha Tin 31 degrees;
Tuen Mun 31 degrees;
Tseung Kwan O 32 degrees;
Sai Kung 30 degrees;
Cheung Chau 31 degrees;
Chek Lap Kok 30 degrees;
Tsing Yi 31 degrees;
Tsuen Wan Ho Koon 29 degrees;
Tsuen Wan Shing Mun Valley 32 degrees;
Hong Kong Park 31 degrees;
Shau Kei Wan 30 degrees;
Kowloon City 31 degrees;
Happy Valley 31 degrees;
Wong Tai Sin 31 degrees;
Stanley 31 degrees;
Kwun Tong 31 degrees;
Sham Shui Po 33 degrees;
Kai Tak Runway Park 31 degrees;
Yuen Long Park 32 degrees;
Tai Mei Tuk 33 degrees.

No rainfall was recorded at the Hong Kong Observatory between midnight last night and midday today.


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


Climatological Information for 28 Sep

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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Bulletin updated at 11:45 HKT 28/Sep/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. Locally, the relative humidity in many places fell below 60 per cent around noon.

At noon, Tropical Storm Mitag was centred about 1170 kilometres east-northeast of Manila. It is forecast to move west-northwest at about 28 kilometres per hour in the general direction of the seas east of Taiwan.

Weather forecast for this afternoon and tonight

Mainly fine. Dry in the afternoon. Moderate east to northeasterly winds.

Outlook : Mainly fine in the next few days.


(The above forecast period is valid up to 23:59 HKT today, 28/09/2019; 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 28/Sep/2019

N0 WARNING.

GENERAL SITUATION AT 272100 UTC:
THE NORTHEAST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 280100 UTC:

HONG KONG= E TO NE 4, OCNL 5. FINE. SEA UP TO 2 M. TEMP 32-26 C. =
KWANGTUNG= NE 4-5, OCNL 6 IN E. FINE. SEA UP TO 2 M, UP TO 3 M IN E. SWELL NE UP TO 2 M. =
TAIWAN STRAIT= NE 5-6. ISOL SHOWERS. SEA 2-3 M. SWELL NE 2 M. =
BASHI= NE 4-5, OCNL 6. ISOL SHOWERS AND TS. SEA UP TO 3 M. SWELL NE 2 M. =
PRATAS= NE 4-5, OCNL 6. ISOL SHOWERS AND TS. SEA UP TO 3 M. SWELL NE 2 M. =
BALINTANG= NE 4-5, OCNL 6. ISOL SHOWERS AND TS. SEA UP TO 3 M. SWELL NE 2 M. =
SCARBOROUGH= NE 4-5, OCNL 6. ISOL SHOWERS AND TS. SEA UP TO 3 M. SWELL NE 2 M. =
PARACEL= NE 4-5. FINE. SEA UP TO 2 M. SWELL NE 2 M. =
TONKIN= NE 4, OCNL 5. ISOL SHOWERS. SEA UP TO 2 M. =
DANANG= 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 12:30 HKT 28/Sep/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 12:30 p.m. on 28 September 2019

    Warnings:
    Strong winds in Nan'ao.

    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, occasionally force 5.
    Moderate seas.

    Nan'ao:
    Northeast force 4 to 5, occasionally force 6.
    Moderate to rough seas.

    Shanwei, South of Hong Kong and Shangchuan Dao:
    Northeast force 4, occasionally force 5.
    Moderate seas.

    Outlook for the next 48 hours
    Northeasterly winds of force 4, occasionally force 5. Isolated showers and thunderstorms.

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

    Waglan Island Wind east-northeast force 2
      Visibility 21 Kilometres

    Shantou Wind east-southeast force 2

    Dongsha Wind northeast force 3
      Visibility 10 Kilometres

    Huangmaozhou Wind north force 2

    Macau Wind north-northeast force 2
      Visibility 8 Kilometres

    Xisha Wind north-northeast force 3
      Visibility 19 Kilometres

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    • WEATHER FORECAST FOR LOCAL AVIATION
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    Weather Forecast for Local Aviation

    Bulletin issued at 12:30 HKT 28/SEP/2019
    (Next update at 12:30 HKT 28/SEP/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 1300 TO 2300 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  060/5-10                             32-26
   B.   2000 FT:  040/10                               21
   C.   5000 FT:  050/15                               16
   D.  10000 FT:  170/10                               11
   E.  18000 FT:  220/20                               MS4
   F.  24000 FT:  230/25                               MS16
   G.  30000 FT:  210/40                               MS27
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY FINE. LOCALIZED HAZE.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT
   K. VISIBILITY    : 7 KM. TEMPO 4000M IN HAZE.
   L. 0 DEG. C LEVEL: 16500 FT      10 DEG. C LEVEL(S) : 10600 FT
   M. TURBULENCE    : NIL
   N. SEA STATE     : 0.5-1.0 M     SEA TEMPERATURE    : 28 DEG
IV.  FURTHER OUTLOOK: 
     LIGHT TO MODERATE EAST TO NORTHEASTERLY WINDS.
     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 28/Sep/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     30.6 C
Minimum Air Temperature                     25.7 C
Grass Minimum Temperature                   24.2 C
Relative Humidity                        57 - 80 Percent
Rainfall                                      Trace 
Total rainfall since 1st January          2233.2 mm
Against an average of                     2212.4 mm

Other Stations                Min                  Max
King's Park                  24.8 C               30.7 C
Wong Chuk Hang               23.1 C               30.6 C
Ta Kwu Ling                  21.0 C               32.4 C
Lau Fau Shan                 22.9 C               30.9 C
Tai Po                       23.2 C               29.7 C
Sha Tin                      22.8 C               31.4 C
Tuen Mun                     23.5 C               31.4 C
Tseung Kwan O                23.1 C               31.7 C
Sai Kung                     24.8 C               30.3 C
Cheung Chau                  23.8 C               33.0 C
Chek Lap Kok                 24.8 C               31.7 C
Tsing Yi                     24.8 C               31.2 C
Tsuen Wan Ho Koon            21.9 C               29.6 C
Tsuen Wan Shing Mun Valley   22.0 C               31.6 C
Hong Kong Park               24.3 C               31.2 C
Shau Kei Wan                 24.4 C               30.6 C
Kowloon City                 24.6 C               32.0 C
Happy Valley                 24.0 C               31.9 C
Wong Tai Sin                 24.5 C               32.8 C
Stanley                      25.2 C               31.3 C
Kwun Tong                    24.7 C               31.0 C
Sham Shui Po                 24.2 C               32.9 C
Kai Tak Runway Park          25.8 C               31.0 C
Yuen Long Park               21.8 C               33.2 C
Tai Mei Tuk               24.4 C               33.0 C

Duration of sunshine (King's Park):              5.7 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 (27 Sep 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                           0.12
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 27 Sep
     2003copy right image | Important notices | Privacy policy Last revision date: <28 Sep 2019> 

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