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Bulletin issued at 23:02 HKT 25/Feb/2019

At 11 p.m. at the Hong Kong Observatory the air temperature was 19 degrees Celsius and the relative humidity 85 per cent.

The air temperatures at other places were:

King's Park 18 degrees;
Wong Chuk Hang 19 degrees;
Ta Kwu Ling 17 degrees;
Lau Fau Shan 16 degrees;
Tai Po 17 degrees;
Sha Tin 18 degrees;
Tuen Mun 17 degrees;
Tseung Kwan O 18 degrees;
Sai Kung 18 degrees;
Cheung Chau 17 degrees;
Chek Lap Kok 16 degrees;
Tsing Yi 19 degrees;
Shek Kong 17 degrees;
Tsuen Wan Ho Koon 17 degrees;
Tsuen Wan Shing Mun Valley 18 degrees;
Hong Kong Park 19 degrees;
Shau Kei Wan 18 degrees;
Kowloon City 19 degrees;
Happy Valley 19 degrees;
Wong Tai Sin 19 degrees;
Stanley 19 degrees;
Kwun Tong 18 degrees;
Sham Shui Po 18 degrees;
Kai Tak Runway Park 19 degrees;
Yuen Long Park 17 degrees;
Tai Mei Tuk 17 degrees.


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


Climatological Information for 25 Feb

Regional Weather in Hong Kong

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Bulletin updated at 23:15 HKT 25/Feb/2019

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

The northeast monsoon affected the coast of Guangdong today. Locally, it was mainly cloudy with one or two light rain patches. The weather was cool in the morning. A fresh easterly airstream is expected to affect the coast of Guangdong tomorrow. With the easterly airstream moderating midweek this week, temperatures will rise over the coastal areas.

At 11 p.m., Super Typhoon Wutip was centred about 580 kilometres north-northeast of Yap. It is forecast to be slow-moving, lingering over the western North Pacific.

Weather forecast for Hong Kong (Tuesday, 26 Feb 2019)

Mainly cloudy. One or two light rain patches in the morning. Sunny intervals during the day. Temperatures will range between 18 and 22 degrees. Moderate to fresh easterly winds.

Outlook : Temperatures rising with sunny periods in the following couple of days. Coastal fog in the latter part of this week.


(The above forecast period is valid up to 23:59 HKT tomorrow, 26/02/2019; 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 25/Feb/2019

N0 WARNING.

GENERAL SITUATION AT 250900 UTC:
AN EASTERLY AIRSTREAM IS GENERALLY AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 251300 UTC:

HONG KONG= E 5-6. LGT RAIN PATCHES. SEA 2-3 M. SWELL NE UP TO 2 M. TEMP 18-22 C. =
KWANGTUNG= E TO NE 5-6, OCNL 7. LGT RAIN PATCHES. SEA UP TO 4 M. SWELL NE 2 M. =
TAIWAN STRAIT= NE 5-6, OCNL 7. LGT RAIN PATCHES. SEA UP TO 4 M. SWELL N TO NE 2 M. =
BASHI= E TO NE 5-6. RAIN PATCHES. SEA 2-3 M. SWELL N TO NE 2 M. =
PRATAS= NE 5-6, OCNL 7. RAIN PATCHES. SEA UP TO 4 M. SWELL N TO NE 2 M. =
BALINTANG= E TO NE 5-6. RAIN PATCHES. SEA 2-3 M. SWELL N TO NE 2 M. =
SCARBOROUGH= NE 4-5, OCNL 6. RAIN PATCHES. SEA UP TO 3 M. SWELL N TO NE 2 M. =
PARACEL= E TO SE 4-5. FINE. SEA UP TO 2 M. SWELL NE 2 M. =
TONKIN= E TO NE 4-5. LGT RAIN PATCHES. SEA UP TO 2 M. =
DANANG= E TO SE 4-5. LGT RAIN PATCHES. SEA UP TO 2 M. SWELL NE 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.


  • 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 23:30 HKT 25/Feb/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 11:30 p.m. on 25 February 2019

    Warnings:
    Strong winds in all areas.

    Weather Situation:
    An easterly airstream is affecting the south China coastal waters.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East force 5 to 6.
    A few light rain patches.
    Moderate to rough seas.

    Nan'ao, Shanwei, South of Hong Kong and Shangchuan Dao:
    East to northeast force 5 to 6, occasionally force 7.
    Moderate to rough seas.

    Outlook for the next 48 hours
    East to southeasterly winds of force 5 to 6. Fog patches later.

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

    Waglan Island Wind northeast force 4
      Visibility 13 Kilometres

    Shantou Wind east-northeast force 2
      Visibility 15 Kilometres

    Dongsha Wind north-northeast force 2
      Visibility 10 Kilometres

    Huangmaozhou Wind northeast force 3

    Xisha Wind east-northeast force 2
      Visibility 24 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 17:30 HKT 25/FEB/2019
    (Next update at 01:30 HKT 26/FEB/2019)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB.
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 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  040/5-10
                  BECMG 090/10-15
       OFFSHORE:  050/10-15
                  BECMG 090/15-20 OCNL 25              18-16
   B.   2000 FT:  140/10                               15
   C.   5000 FT:  280/10                               13
   D.  10000 FT:  280/20                               4
   E.  18000 FT:  270/35                               MS5
   F.  24000 FT:  270/55                               MS18
   G.  30000 FT:  250/75                               MS31
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      1600-2300 FT
   I. WEATHER       : 
      MAINLY CLOUDY. A FEW LIGHT RAIN PATCHES.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1000 FT  SCT 2500 FT
   K. VISIBILITY    : 8 KM. TEMPO 4000 M IN RAIN.
   L. 0 DEG. C LEVEL: 15500 FT      10 DEG. C LEVEL(S) : 7400 FT
   M. TURBULENCE    : MOD TO SEV OFFSHORE.
   N. SEA STATE     : 1.0-3.5 M     SEA TEMPERATURE    : 19 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH EASTERLY WINDS, OCASSIONALLY
     STRONG OFFSHORE. MAINLY CLOUDY WITH A FEW LIGHT
     RAIN PACTHES IN THE MORNING. SUNNY INERTERVAS
     DURING THE DAY.=

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

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

Hong Kong Observatory
Maximum Air Temperature                     19.5 C
Minimum Air Temperature                     14.1 C
Grass Minimum Temperature                   14.9 C
Relative Humidity                        75 - 95 Percent
Rainfall                                     3.4 mm 
Total rainfall since 1st January            73.4 mm
Against an average of                       71.1 mm

Other Stations                Min                  Max
King's Park                  13.5 C               19.9 C
Wong Chuk Hang               14.4 C               19.0 C
Ta Kwu Ling                  11.8 C               17.7 C
Lau Fau Shan                 11.6 C               17.5 C
Tai Po                       11.5 C               17.8 C
Sha Tin                      12.3 C               18.1 C
Tuen Mun                     12.4 C               18.5 C
Tseung Kwan O                13.3 C               18.7 C
Sai Kung                     13.3 C               18.6 C
Cheung Chau                  13.1 C               20.1 C
Chek Lap Kok                 12.8 C               17.9 C
Tsing Yi                     13.6 C               19.3 C
Shek Kong                    11.9 C               18.2 C
Tsuen Wan Ho Koon            11.5 C               18.3 C
Tsuen Wan Shing Mun Valley   12.7 C               19.6 C
Hong Kong Park               13.9 C               19.3 C
Shau Kei Wan                 13.7 C               19.4 C
Kowloon City                 12.9 C               19.8 C
Happy Valley                 14.5 C               19.8 C
Wong Tai Sin                 13.1 C               19.9 C
Stanley                      14.4 C               19.1 C
Kwun Tong                    13.5 C               19.5 C
Sham Shui Po                 13.2 C               20.0 C
Kai Tak Runway Park          13.8 C               19.4 C
Yuen Long Park               12.0 C               18.2 C
Tai Mei Tuk               12.7 C               19.0 C

Duration of sunshine (King's Park):              0.7 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 7.
 

Yesterday's (24 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                         0.11
Kwun Tong                           0.13
Sai Wan Ho                          0.10
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 24 Feb
     2003copy right image | Important notices | Privacy policy Last revision date: <25 Feb 2019> 

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