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Bulletin issued at 10:02 HKT 27/Mar/2019

At 10 a.m. at the Hong Kong Observatory the air temperature was 22 degrees Celsius and the relative humidity 81 per cent.
During the past hour the mean UV Index recorded at King's Park was 2. 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 23 degrees;
Lau Fau Shan 23 degrees;
Tai Po 21 degrees;
Sha Tin 22 degrees;
Tuen Mun 23 degrees;
Tseung Kwan O 21 degrees;
Sai Kung 22 degrees;
Cheung Chau 22 degrees;
Chek Lap Kok 23 degrees;
Tsing Yi 23 degrees;
Shek Kong 24 degrees;
Tsuen Wan Ho Koon 22 degrees;
Tsuen Wan Shing Mun Valley 23 degrees;
Hong Kong Park 22 degrees;
Shau Kei Wan 21 degrees;
Kowloon City 23 degrees;
Happy Valley 23 degrees;
Wong Tai Sin 23 degrees;
Stanley 21 degrees;
Kwun Tong 22 degrees;
Sham Shui Po 23 degrees;
Kai Tak Runway Park 22 degrees;
Yuen Long Park 23 degrees;
Tai Mei Tuk 22 degrees.


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


Climatological Information for 27 Mar

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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Bulletin updated at 09:45 HKT 27/Mar/2019

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

A fresh easterly airstream is affecting the coast of Guangdong.

Weather forecast for today

Mainly cloudy with sunny periods. Moderate easterly winds, fresh offshore at first.

Outlook : Warm tomorrow. Becoming cloudy with rain in the following couple of days. Slightly cooler early next week.


(The above forecast period is valid up to 23:59 HKT today, 27/03/2019; 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 27/Mar/2019

N0 WARNING.

GENERAL SITUATION AT 262100 UTC:
AN EASTERLY AIRSTREAM IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 270100 UTC:

HONG KONG= E 5-6, S 4-5 LATER. DOWN TO 1000 M IN MIST OR LGT RAIN PATCHES. SEA 2-3 M. SWELL E UP TO 2 M. TEMP 26-22 C. =
KWANGTUNG= E 5-6, S 4-5 LATER. DOWN TO 1000 M IN MIST OR RAIN PATCHES. SEA 2-3 M. SWELL E UP TO 2 M. =
TAIWAN STRAIT= E TO NE 5-6, BEC S 4-5. DOWN TO 2000 M IN MIST PATCHES. SEA 2-3 M. SWELL NE UP TO 2 M. =
BASHI= E 6, S 5-6 LATER. RAIN PATCHES. SEA 2-3 M. SWELL NE UP TO 2 M. =
PRATAS= E 5-6, S 4-5 LATER. LGT RAIN PATCHES. SEA 2-3 M. SWELL NE UP TO 2 M. =
BALINTANG= E 6, S 5-6 LATER. RAIN PATCHES. SEA 2-3 M. SWELL NE UP TO 2 M. =
SCARBOROUGH= E 4-5, S 4-5 LATER. FINE. SEA UP TO 2 M. SWELL NE UP TO 2 M. =
PARACEL= E 4-5, S 4-5 LATER. DOWN TO 1000 M IN MIST OR RAIN PATCHES. SEA UP TO 2 M. SWELL NE UP TO 2 M. =
TONKIN= SE 4-5. DOWN TO 500 M IN FOG OR RAIN PATCHES. SEA UP TO 2 M. =
DANANG= SE 4-5. MIST PATCHES. DOWN TO 500 M IN FOG PATCHES LATER. 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.


  • Map showing the 10 forecast areas
  • Tidal Information

    • 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 27/Mar/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 9:30 a.m. on 27 March 2019

    Warnings:
    Strong winds in all areas.

    Weather Situation:
    An easterly airstream is affecting the coastal waters of Guangdong.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East force 5 to 6, becoming south force 4 to 5 later.
    A few light rain and mist patches.
    Moderate to rough seas.

    Nan'ao, Shanwei, South of Hong Kong and Shangchuan Dao:
    East force 5 to 6, becoming south force 4 to 5 later.
    Moderate to rough seas.

    Outlook for the next 48 hours
    Southerly winds of force 4 to 5. Fog patches. Isolated showers and thunderstorms on Friday night.

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

    Waglan Island Wind northeast force 4
      Visibility 16 Kilometres

    Shantou Wind southeast force 1
      Visibility 17 Kilometres

    Dongsha Wind east-southeast force 2
      Visibility 10 Kilometres

    Huangmaozhou Wind east force 6

    Macau Wind east force 2
      Visibility 7 Kilometres

    Xisha Wind east force 2
      Visibility 20 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 27/MAR/2019
    (Next update at 12:30 HKT 27/MAR/2019)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AN EASTERLY AIRSTREAM IS AFFECTING THE COASTAL
     AREAS OF GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  080/10-15
       OFFSHORE:  100/15-20, OCNL 25 AT FIRST          22-27
   B.   2000 FT:  150/15-20, OCNL 25 AT FIRST          19
   C.   5000 FT:  190/15                               15
   D.  10000 FT:  260/20                               8
   E.  18000 FT:  240/20                               MS3
   F.  24000 FT:  250/35                               MS15
   G.  30000 FT:  250/45                               MS28
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      1300 - 1900 FT.
   I. WEATHER       : 
      MAINLY CLOUDY WITH A FEW LIGHT RAIN PATCHES AT
      FIRST.  SUNNY PERIODS DURING THE DAY.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT  SCT 3000 FT.
   K. VISIBILITY    : 7 KM.  TEMPO 4000 M IN RAIN.
   L. 0 DEG. C LEVEL: 17000 FT      10 DEG. C LEVEL(S) : 9600 FT
   M. TURBULENCE    : MOD TO SEV OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 2.0-3.0 M     SEA TEMPERATURE    : 21 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EAST TO SOUTHEASTERLY WINDS.  MAINLY
     CLOUDY.  LOCALIZED 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)

    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 27/Mar/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     24.6 C
Minimum Air Temperature                     20.8 C
Grass Minimum Temperature                   19.6 C
Relative Humidity                        75 - 88 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January           245.3 mm
Against an average of                      142.4 mm

Other Stations                Min                  Max
King's Park                  20.1 C               24.3 C
Wong Chuk Hang               20.4 C               25.0 C
Ta Kwu Ling                  19.5 C               25.2 C
Lau Fau Shan                 18.8 C               27.9 C
Tai Po                       19.8 C               23.6 C
Sha Tin                      20.0 C               24.5 C
Tuen Mun                     20.1 C               25.1 C
Tseung Kwan O                18.8 C               23.5 C
Sai Kung                     20.0 C               22.8 C
Cheung Chau                  19.7 C               25.6 C
Chek Lap Kok                 20.2 C               26.7 C
Tsing Yi                     20.2 C               25.9 C
Shek Kong                    19.6 C               27.1 C
Tsuen Wan Ho Koon            19.1 C               25.3 C
Tsuen Wan Shing Mun Valley   20.1 C               25.3 C
Hong Kong Park               20.5 C               24.9 C
Shau Kei Wan                 19.8 C               22.4 C
Kowloon City                 20.0 C               25.7 C
Happy Valley                 20.7 C               25.3 C
Wong Tai Sin                 20.3 C               25.3 C
Stanley                      20.1 C               22.8 C
Kwun Tong                    19.7 C               23.6 C
Sham Shui Po                 20.7 C               25.3 C
Kai Tak Runway Park          20.6 C               23.2 C
Yuen Long Park               19.8 C               27.9 C
Tai Mei Tuk               19.4 C               24.2 C

Duration of sunshine (King's Park):              3.2 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 6.
 

Yesterday's (26 Mar 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                               0.10
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                         0.14
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 26 Mar
     2003copy right image | Important notices | Privacy policy Last revision date: <27 Mar 2019> 

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