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Bulletin issued at 09:02 HKT 07/Feb/2019

At 9 a.m. at the Hong Kong Observatory the air temperature was 22 degrees Celsius and the relative humidity 88 per cent.
During the past hour the mean UV Index recorded at King's Park was 0.8. The intensity of UV radiation was low.

The air temperatures at other places were:

King's Park 22 degrees;
Wong Chuk Hang 23 degrees;
Ta Kwu Ling 22 degrees;
Lau Fau Shan 23 degrees;
Tai Po 24 degrees;
Sha Tin 23 degrees;
Tuen Mun 23 degrees;
Tseung Kwan O 22 degrees;
Sai Kung 21 degrees;
Cheung Chau 23 degrees;
Chek Lap Kok 24 degrees;
Tsing Yi 22 degrees;
Shek Kong 24 degrees;
Tsuen Wan Ho Koon 21 degrees;
Tsuen Wan Shing Mun Valley 23 degrees;
Hong Kong Park 22 degrees;
Shau Kei Wan 23 degrees;
Kowloon City 23 degrees;
Happy Valley 24 degrees;
Wong Tai Sin 24 degrees;
Stanley 21 degrees;
Kwun Tong 23 degrees;
Sham Shui Po 24 degrees;
Kai Tak Runway Park 22 degrees;
Yuen Long Park 23 degrees;
Tai Mei Tuk 23 degrees.

Between midnight and 9 a.m. the minimum temperature was 21.3 degrees Celsius at the Hong Kong Observatory.


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


Climatological Information for 7 Feb

Regional Weather in Hong Kong

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Bulletin updated at 08:45 HKT 07/Feb/2019

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

A humid maritime airstream is affecting the coast of Guangdong. Locally, the visibility at Waglan Island once fell below 3000 metres this morning.

Weather forecast for today

Mainly fine and warm. The maximum temperature will be around 25 degrees. Mist and light rain patches tonight. Light to moderate southeasterly winds.

Outlook : Sunny periods tomorrow. There will be fog in the morning and at night. Windier and slightly cooler over the weekend and early next week.


(The above forecast period is valid up to 23:59 HKT today, 07/02/2019; 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

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Bulletin issued at 09:00 HKT 07/Feb/2019

N0 WARNING.

GENERAL SITUATION AT 062100 UTC:
TROUGH 24N 105E 26N 113E 30N 122E QSTNR.

MARINE FORECAST FOR 24 HOURS FROM 070100 UTC:

HONG KONG= SE 3-4. DOWN TO 2000 M IN MIST OR LGT RAIN PATCHES. TEMP 25-20 C. =
KWANGTUNG= SE 4-5, E TO NE 5-6 IN E LATER. DOWN TO 500 M IN FOG OR LGT RAIN PATCHES. SEA UP TO 2 M, 3 M LATER. =
TAIWAN STRAIT= SE 3-4, NE 6-7 LATER. DOWN TO 500 M IN FOG OR LGT RAIN PATCHES. SEA 3-4 M LATER. SWELL NE 2 M. =
BASHI= E TO SE 4-5, NE 5-6 LATER. CLD. SEA UP TO 2 M, 3 M LATER. SWELL E 2 M. =
PRATAS= E TO SE 4-5, NE 5-6 LATER. CLD. SEA UP TO 2 M, 3 M LATER. SWELL E 2 M. =
BALINTANG= E TO SE 4-5, NE 5-6 LATER. FINE. SEA UP TO 2 M, 3 M LATER. SWELL E 2 M. =
SCARBOROUGH= E TO NE 4-5. FINE. SEA UP TO 2 M. =
PARACEL= SE 4-5. FINE. SEA UP TO 2 M. =
TONKIN= S TO SE 4-5, OCNL 6. DOWN TO 2000 M IN MIST OR LGT RAIN PATCHES. SEA UP TO 3 M. =
DANANG= S TO SE 4-5, OCNL 6. DOWN TO 2000 M IN MIST OR LGT RAIN PATCHES. 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
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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 07/Feb/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 9:30 a.m. on 07 February 2019

    Warnings:
    Strong winds in Nan'ao and Shanwei. Fog in Nan'ao, Shanwei, south of Hong Kong and Shangchuan Dao.

    Weather Situation:
    A southeasterly airstream is affecting the south China coastal waters.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    Southeast force 3 to 4.
    Light rain and mist patches.
    Slight to moderate seas.

    Nan'ao and Shanwei:
    Southeast force 4 to 5, becoming east to northeast force 5 to 6 later.
    Fog patches.
    Moderate seas, becoming rough later.

    South of Hong Kong and Shangchuan Dao:
    Southeast force 4 to 5.
    Fog patches.
    Moderate seas.

    Outlook for the next 48 hours
    Southeasterly winds of force 4 to 5, becoming east to northeasterly winds of force 6 to 7. Fog patches at first.

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

    Waglan Island Wind east force 3
      Visibility 5000 Metres

    Shantou Wind calm
      Visibility 2100 Metres in mist

    Huangmaozhou Wind southeast force 4

    Macau Wind south-southeast force 2
      Visibility 3000 Metres

    Xisha Wind south force 1
      Visibility 27 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 09:00 HKT 07/FEB/2019
    (Next update at 12:30 HKT 07/FEB/2019)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     A SOUTHEASTERLY AIRSTREAM IS AFFECTING THE SOUTH
     CHINA COASTAL WATERS.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  130/5-10
       OFFSHORE:  130/10-15                            22-26
   B.   2000 FT:  180/10-15                            19
   C.   5000 FT:  250/15                               14
   D.  10000 FT:  260/35                               8
   E.  18000 FT:  270/50                               MS3
   F.  24000 FT:  280/65                               MS15
   G.  30000 FT:  290/70                               MS30
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      SUNNY PERIODS.  LOCALIZED MIST AT FIRST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 800 FT  SCT 3000 FT.
   K. VISIBILITY    : 7 KM.  TEMPO 4000 M IN MIST.
   L. 0 DEG. C LEVEL: 16500 FT      10 DEG. C LEVEL(S) : 7200 FT
   M. TURBULENCE    : NIL.
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 19 DEG
IV.  FURTHER OUTLOOK: 
     LIGHT TO MODERATE SOUTHEASTERLY WINDS.  MAINLY
     CLOUDY.  LOCALIZED FOG/MIST.=

    ===================================================================
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 07/Feb/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     24.9 C
Minimum Air Temperature                     20.5 C
Grass Minimum Temperature                   18.6 C
Relative Humidity                        77 - 92 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January             4.7 mm
Against an average of                       32.5 mm

Other Stations                Min                  Max
King's Park                  19.7 C               25.3 C
Wong Chuk Hang               20.1 C               25.2 C
Ta Kwu Ling                  19.0 C               27.2 C
Lau Fau Shan                 18.9 C               28.3 C
Tai Po                       19.5 C               25.6 C
Sha Tin                      19.7 C               26.7 C
Tuen Mun                     20.4 C               26.5 C
Tseung Kwan O                19.5 C               25.6 C
Sai Kung                     19.8 C               23.3 C
Cheung Chau                  19.5 C               25.8 C
Chek Lap Kok                 21.1 C               26.6 C
Tsing Yi                     20.4 C               26.4 C
Shek Kong                    18.2 C               27.7 C
Tsuen Wan Ho Koon            19.8 C               25.6 C
Tsuen Wan Shing Mun Valley   20.6 C               27.1 C
Hong Kong Park               19.6 C               24.2 C
Shau Kei Wan                 19.3 C               24.0 C
Kowloon City                 19.4 C               27.1 C
Happy Valley                 20.1 C               25.3 C
Wong Tai Sin                 20.1 C               26.8 C
Stanley                      19.3 C               23.6 C
Kwun Tong                    19.8 C               26.2 C
Sham Shui Po                 20.7 C               26.8 C
Kai Tak Runway Park          19.5 C               23.4 C
Yuen Long Park               19.0 C               27.3 C
Tai Mei Tuk               19.6 C               27.1 C

Duration of sunshine (King's Park):              3.7 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 5.
 

Yesterday's (06 Feb 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                           0.09
Tap Mun                             0.09
Kat O                               0.11
Yuen Ng Fan                         0.12
Tai Mei Tuk                         0.12
Sha Tau Kok                         0.10
Kwun Tong                           0.13
Sai Wan Ho                          0.09
King's Park                         0.15
Tsim Bei Tsui                       0.13
Cape D'Aguilar                      0.13
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 06 Feb
     2003copy right image | Important notices | Privacy policy Last revision date: <07 Feb 2019> 

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