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Bulletin issued at 09:02 HKT 26/Mar/2018

At 9 a.m. at the Hong Kong Observatory the air temperature was 22 degrees Celsius and the relative humidity 69 per cent.
During the past hour the mean UV Index recorded at King's Park was 1. 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 22 degrees;
Tai Po 24 degrees;
Sha Tin 22 degrees;
Tuen Mun 23 degrees;
Tseung Kwan O 22 degrees;
Sai Kung 23 degrees;
Cheung Chau 21 degrees;
Chek Lap Kok 23 degrees;
Tsing Yi 23 degrees;
Shek Kong 23 degrees;
Tsuen Wan Ho Koon 21 degrees;
Tsuen Wan Shing Mun Valley 23 degrees;
Hong Kong Park 21 degrees;
Shau Kei Wan 23 degrees;
Kowloon City 23 degrees;
Happy Valley 23 degrees;
Wong Tai Sin 23 degrees;
Stanley 22 degrees;
Kwun Tong 23 degrees;
Sham Shui Po 23 degrees;
Kai Tak Runway Park 23 degrees;
Yuen Long Park 22 degrees;
Tai Mei Tuk 22 degrees.

Between midnight and 9 a.m. the minimum temperature was 20.4 degrees Celsius at the Hong Kong Observatory.


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


Climatological Information for 26 Mar

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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Bulletin updated at 08:45 HKT 26/Mar/2018

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

The easterly airstream affecting the south China coast is moderating gradually. Meanwhile, a broad band of clouds is covering the region.

At 8 a.m., Tropical Storm Jelawat was centred about 220 kilometres south-southwest of Yap. It is forecast to move west-northwest at about 15 kilometres per hour in the general direction of the seas east of the Philippines.

Weather forecast for today

Mainly cloudy. Sunny periods during the day. The maximum temperature will be about 25 degrees. Moderate east to northeasterly winds.

Outlook : Mainly fine in the next couple of days. Cloudier on Thursday.


(The above forecast period is valid up to 23:59 HKT today, 26/03/2018; 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 26/Mar/2018

N0 WARNING.

GENERAL SITUATION AT 252100 UTC:
AN EASTERLY AIRSTREAM IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 260100 UTC:

HONG KONG= E TO NE 4-5. RAIN PATCHES. SEA UP TO 2 M. SWELL E UP TO 2 M. TEMP 25-19 C. =
KWANGTUNG= E TO NE 4-5. RAIN PATCHES. SEA UP TO 2 M. SWELL E 2 M. =
TAIWAN STRAIT= E TO NE 4-5, OCNL 6. FINE. SEA UP TO 3 M. SWELL NE UP TO 2 M. =
BASHI= E TO NE 5-6. RAIN PATCHES. SEA 2-3 M. SWELL E TO NE 2 M. =
PRATAS= E TO NE 4-5, OCNL 6. RAIN PATCHES. SEA UP TO 3 M. SWELL E 2 M. =
BALINTANG= E TO NE 5-6, OCNL 7. LGT RAIN PATCHES. SEA UP TO 4 M. SWELL E 2 M. =
SCARBOROUGH= E TO NE 5-6, OCNL 7. FINE. SEA UP TO 4 M. SWELL E TO NE 2 M. =
PARACEL= E TO NE 4-5, OCNL 6. RAIN PATCHES. SEA UP TO 3 M. SWELL E TO NE 2 M. =
TONKIN= E TO NE 4-5. DOWN TO 4000 M IN MORNING MIST PATCHES. SEA UP TO 2 M. =
DANANG= E TO NE 4-5. RAIN PATCHES. SEA UP TO 2 M. SWELL E TO 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 09:30 HKT 26/Mar/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 9:30 a.m. on 26 March 2018

    Weather Situation:
    An easterly 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.
    A few rain patches.
    Moderate seas.

    Nan'ao, Shanwei, South of Hong Kong and Shangchuan Dao:
    East to northeast force 4 to 5.
    Moderate seas.

    Outlook for the next 48 hours
    Easterly winds of force 4 to 5.

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

    Waglan Island Wind north-northeast force 2
      Visibility 13 Kilometres

    Shantou Wind east-southeast force 1
      Visibility 9 Kilometres

    Dongsha Wind east force 3
      Visibility 10 Kilometres

    Huangmaozhou Wind northeast force 4

    Macau Wind north-northwest force 1
      Visibility 6 Kilometres

    Xisha Wind northeast force 2
      Visibility 17 Kilometres

  • Explanation of Seas or Sea Waves
  • Explanation of Swells
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  • Visibility Readings in Hong Kong Waters
  • Map showing forecast areas
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    • WEATHER FORECAST FOR LOCAL AVIATION
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    Weather Forecast for Local Aviation

    Bulletin issued at 09:00 HKT 26/MAR/2018
    (Next update at 12:30 HKT 26/MAR/2018)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE EASTERLY AIRSTREAM AFFECTING THE SOUTH CHINA
     COAST IS MODERATING GRADUALLY.  MEANWHILE, A
     BROAD BAND OF CLOUDS IS COVERING THE REGION.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  070/5-10
       OFFSHORE:  070/10-15                            22-26
   B.   2000 FT:  120/10 BEC 020/10-15                 18
   C.   5000 FT:  020/10                               12
   D.  10000 FT:  320/10                               4
   E.  18000 FT:  330/25                               MS9
   F.  24000 FT:  300/40                               MS20
   G.  30000 FT:  290/85                               MS27
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY CLOUDY WITH A FEW RAIN AND MIST PATCHES
      AT FIRST.  SUNNY PERIODS DURING THE DAY.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2500 FT  SCT 4000 FT.
   K. VISIBILITY    : 7 KM.  TEMPO 4000 M IN RAIN/MIST.
   L. 0 DEG. C LEVEL: 12000 FT      10 DEG. C LEVEL(S) : 6400 FT
   M. TURBULENCE    : MOD OFFSHORE.
   N. SEA STATE     : 1.5 M         SEA TEMPERATURE    : 20 DEG
IV.  FURTHER OUTLOOK: 
     LIGHT WINDS.  MAINLY CLOUDY.=

    ===================================================================
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.

    sigmet
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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.

    The latest significant weather information
    issued by the Hong Kong Observatory at 12:37 HKT on 20 Mar 18

    VHHK SIGMET 1 VALID 200040/200440 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2100 E11730 - N1948 E11630 - N1800 E11254 - N1930 E11130 - N1948 E11130 - N2130 E11730 - N2100 E11730 TOP FL380 MOV ENE 20KT NC= VHHK SIGMET 2 VALID 200440/200840 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2130 E11730 - N1706 E11336 - N1842 E11212 - N2324 E11730 - N2130 E11730 TOP FL350 MOV E 20KT WKN=

    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 26/Mar/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     24.5 C
Minimum Air Temperature                     20.5 C
Grass Minimum Temperature                   19.0 C
Relative Humidity                        59 - 78 Percent
Rainfall                                      TRACE 
Total rainfall since 1st January            89.4 mm
Against an average of                      140.1 mm

Other Stations                Min                  Max
King's Park                  19.8 C               24.2 C
Wong Chuk Hang               19.3 C               24.4 C
Ta Kwu Ling                  18.1 C               26.5 C
Lau Fau Shan                 18.2 C               27.1 C
Tai Po                       19.0 C               22.6 C
Sha Tin                      19.5 C               25.1 C
Tuen Mun                     19.8 C               25.3 C
Tseung Kwan O                17.8 C               23.5 C
Sai Kung                     19.0 C               22.4 C
Cheung Chau                  17.8 C               24.1 C
Chek Lap Kok                 20.2 C               26.2 C
Tsing Yi                     21.0 C               25.7 C
Shek Kong                    19.2 C               26.8 C
Tsuen Wan Ho Koon            18.7 C               25.4 C
Tsuen Wan Shing Mun Valley   19.8 C               24.9 C
Hong Kong Park               19.1 C               24.4 C
Shau Kei Wan                 19.3 C               24.1 C
Kowloon City                 19.8 C               25.6 C
Happy Valley                 19.7 C               24.5 C
Wong Tai Sin                 19.6 C               24.1 C
Stanley                      18.3 C               23.9 C
Kwun Tong                    19.8 C               23.0 C
Sham Shui Po                 20.3 C               25.4 C
Kai Tak Runway Park          20.6 C               23.0 C
Yuen Long Park               19.0 C               26.6 C
Tai Mei Tuk               18.6 C               24.3 C

Duration of sunshine (King's Park):              4.3 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.
Sea surface temperature (Waglan Island):        20.4 C 

Yesterday's (25 Mar 2018) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.08 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                           0.08
Tap Mun                             0.09
Kat O                               0.10
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                        0.14

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 25 Mar
     2003copy right image | Important notices | Privacy policy Last revision date: <26 Mar 2018> 

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