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Bulletin issued at 04:02 HKT 08/Feb/2019

At 4 a.m. at the Hong Kong Observatory the air temperature was 22 degrees Celsius and the relative humidity 88 per cent.

The air temperatures at other places were:

King's Park 21 degrees;
Wong Chuk Hang 21 degrees;
Ta Kwu Ling 20 degrees;
Lau Fau Shan 20 degrees;
Tai Po 19 degrees;
Sha Tin 19 degrees;
Tuen Mun 21 degrees;
Tseung Kwan O 19 degrees;
Sai Kung 19 degrees;
Cheung Chau 20 degrees;
Chek Lap Kok 22 degrees;
Tsing Yi 21 degrees;
Shek Kong 19 degrees;
Tsuen Wan Ho Koon 20 degrees;
Tsuen Wan Shing Mun Valley 20 degrees;
Hong Kong Park 21 degrees;
Shau Kei Wan 21 degrees;
Kowloon City 21 degrees;
Happy Valley 20 degrees;
Wong Tai Sin 21 degrees;
Stanley 20 degrees;
Kwun Tong 21 degrees;
Sham Shui Po 21 degrees;
Kai Tak Runway Park 21 degrees;
Yuen Long Park 20 degrees;
Tai Mei Tuk 20 degrees.


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


Climatological Information for 8 Feb

Regional Weather in Hong Kong

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Hong Kong Climatology


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Bulletin updated at 03:45 HKT 08/Feb/2019

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

Pressure over southeastern China is rising. A fresh easterly airstream is expected to arrive at the coast of Guangdong today.

Weather forecast for today

Mainly fine and misty in the morning. Becoming cloudy during the day. Temperatures will range between 20 and 24 degrees. Moderate southeasterly winds, becoming moderate to fresh easterlies later with one or two rain patches.

Outlook : Windier and slightly cooler over the weekend and early next week.


(The above forecast period is valid up to 23:59 HKT today, 08/02/2019; 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

Weather Information for the Marine Community

Bulletin issued at 21:00 HKT 07/Feb/2019

GALE WARNING AREA: TAIWAN STRAIT.

GENERAL SITUATION AT 070900 UTC:
TROUGH 25N 108E 25N 113E 26N 118E S SLOWLY.

MARINE FORECAST FOR 24 HOURS FROM 071300 UTC:

HONG KONG= SE 4-5, E 6 LATER. DOWN TO 500 M IN FOG PATCHES. RAIN PATCHES LATER TOMORROW. SEA 2 M, 3 M LATER. SWELL E UP TO 2 M. TEMP 20-24 C. =
KWANGTUNG= SE 4-5, E TO NE UP TO 7 IN E LATER. DOWN TO 500 M IN FOG OR LGT RAIN PATCHES. SEA 2 M, UP TO 4 M LATER. SWELL E UP TO 2 M. =
TAIWAN STRAIT= NE 7-8. DOWN TO 500 M IN FOG OR RAIN PATCHES. SEA 4-6 M. SWELL NE 2 M, 3 M LATER. =
BASHI= SE 4-5, BEC NE 6-7. FINE. SEA 2 M, BEC 3-4 M. SWELL E TO NE 2 M, UP TO 3 M LATER. =
PRATAS= SE 4-5, BEC NE UP TO 6. FINE. SEA 2 M, 3 M LATER. SWELL E UP TO 2 M. =
BALINTANG= SE 4-5, BEC NE 5. FINE. SEA UP TO 2 M. SWELL E 2 M. =
SCARBOROUGH= E TO SE 4-5. FINE. SEA UP TO 2 M. =
PARACEL= SE 4-5. DOWN TO 500 M IN FOG PATCHES. SEA UP TO 2 M. =
TONKIN= SE 4-5, OCNL 6. DOWN TO 500 M IN FOG PATCHES. SEA UP TO 3 M. =
DANANG= SE 4-5, OCNL 6. DOWN TO 500 M IN FOG 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.


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    • 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 03:30 HKT 08/Feb/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 3:30 a.m. on 08 February 2019

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

    Weather Situation:
    The southeasterly airstream affecting the south China coastal waters will be replaced by a easterly airstream.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    Southeast force 4 to 5, becoming east force 6 later.
    Fog patches. A few rain patches later.
    Moderate seas, becoming rough later.

    Nan'ao:
    East to northeast force 5 to 6, occasionally force 7.
    Fog patches.
    Moderate to rough seas.

    Shanwei:
    Southeast force 4 to 5, becoming east force 6.
    Fog patches.
    Moderate seas, becoming rough.

    South of Hong Kong:
    Southeast force 4 to 5, becoming east force 6 later.
    Fog patches.
    Moderate seas, becoming rough later.

    Shangchuan Dao:
    Southeast force 4 to 5.
    Fog patches.
    Moderate seas.

    Outlook for the next 48 hours
    East to southeasterly winds of force 6 to 7.

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

    Waglan Island Wind north-northeast force 1
      Visibility 8 Kilometres

    Shantou Wind west-southwest force 1
      Visibility 8 Kilometres

    Huangmaozhou Wind south force 2

    Macau Wind calm
      Visibility 4300 Metres in mist

    Xisha Wind calm
      Visibility 30 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 01:30 HKT 08/FEB/2019
    (Next update at 9:00-9:30 HKT 08/FEB/2019)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     A HUMID SOUTHEASTERLY AIRSTREAM IS AFFECTING THE
     SOUTH CHINA COASTAL AREAS.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  140/10
       OFFSHORE:  140/10-15                            21-24
   B.   2000 FT:  170/15                               18
   C.   5000 FT:  230/15                               15
   D.  10000 FT:  260/35                               11
   E.  18000 FT:  280/45                               0
   F.  24000 FT:  280/65                               MS15
   G.  30000 FT:  290/70                               MS28
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY FINE.  LOCALIZED MIST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT SCT 4000.
   K. VISIBILITY    : 9 KM.  TEMPO 3000 M IN MIST.
   L. 0 DEG. C LEVEL: 18000 FT      10 DEG. C LEVEL(S) : 10800 FT
   M. TURBULENCE    : MOD NEAR HILLS.
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 19 DEG
IV.  FURTHER OUTLOOK: 
     LIGHT SOUTHEASTERLY WINDS AT FIRST, BECOMING
     MODERATE TO FRESH EASTERLY WINDS LATER.  MAINLY
     CLOUDY WITH ONE OR TWO RAIN PATCHES.=

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

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

Hong Kong Observatory
Maximum Air Temperature                     25.8 C
Minimum Air Temperature                     21.3 C
Grass Minimum Temperature                   18.4 C
Relative Humidity                        70 - 91 Percent
Rainfall                                      Trace 
Total rainfall since 1st January             4.7 mm
Against an average of                       38.2 mm

Other Stations                Min                  Max
King's Park                  20.3 C               26.0 C
Wong Chuk Hang               19.6 C               25.4 C
Ta Kwu Ling                  19.9 C               27.3 C
Lau Fau Shan                 20.5 C               29.8 C
Tai Po                       19.8 C               24.5 C
Sha Tin                      19.4 C               27.4 C
Tuen Mun                     20.7 C               27.4 C
Tseung Kwan O                18.8 C               25.8 C
Sai Kung                     19.7 C               25.0 C
Cheung Chau                  19.8 C               26.6 C
Chek Lap Kok                 21.6 C               27.9 C
Tsing Yi                     20.1 C               27.0 C
Shek Kong                    20.1 C               28.8 C
Tsuen Wan Ho Koon            19.1 C               25.9 C
Tsuen Wan Shing Mun Valley   19.8 C               27.3 C
Hong Kong Park               20.8 C               26.4 C
Shau Kei Wan                 19.8 C               24.7 C
Kowloon City                 20.2 C               27.0 C
Happy Valley                 20.6 C               26.6 C
Wong Tai Sin                 20.3 C               26.7 C
Stanley                      19.9 C               25.5 C
Kwun Tong                    20.5 C               26.4 C
Sham Shui Po                 20.7 C               27.3 C
Kai Tak Runway Park          20.2 C               24.3 C
Yuen Long Park               20.1 C               28.6 C
Tai Mei Tuk               20.0 C               28.7 C

Duration of sunshine (King's Park):              7.1 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 (07 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                           0.12
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 07 Feb
     2003copy right image | Important notices | Privacy policy Last revision date: <08 Feb 2019> 

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