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Bulletin issued at 21:02 HKT 19/Mar/2019

At 9 p.m. at the Hong Kong Observatory the air temperature was 23 degrees Celsius and the relative humidity 89 per cent.

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


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


Climatological Information for 19 Mar

Regional Weather in Hong Kong

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Hong Kong Climatology


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Bulletin updated at 20:45 HKT 19/Mar/2019

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

A warm maritime airstream is affecting the coast of Guangdong.

Weather forecast for tonight and tomorrow

Cloudy periods with mist patches in the morning and at night. Mainly fine during the day tomorrow. Temperatures will range between 23 and 27 degrees. Light to moderate south to southeasterly winds.

Outlook : Warm with sunny periods in the following couple of days. Showery, windy and appreciably cooler later on Friday and over the weekend.


(The above forecast period is valid up to 23:59 HKT tomorrow, 20/03/2019; 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 21:00 HKT 19/Mar/2019

N0 WARNING.

GENERAL SITUATION AT 190900 UTC:
A SOUTHEASTERLY AIRSTREAM IS GENERALLY AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 191300 UTC:

HONG KONG= S TO SE 4-5. DOWN TO 500 M IN FOG PATCHES. SEA UP TO 2 M. SWELL E 2 M. TEMP 23-27 C. =
KWANGTUNG= S TO SE 4-5. DOWN TO 500 M IN FOG PATCHES. SEA UP TO 2 M. SWELL E 2-3 M. =
TAIWAN STRAIT= NE 5, SE 4-5 LATER. DOWN TO 500 M IN FOG PATCHES. SEA UP TO 2 M. SWELL NE 2 M. =
BASHI= E TO SE 4-5, OCNL 6. CLD. SEA UP TO 3 M. SWELL E 2-3 M. =
PRATAS= S TO SE 4-5. FINE. SEA UP TO 2 M. SWELL E 2-3 M. =
BALINTANG= E TO SE 4-5, OCNL 6. FINE. SEA UP TO 3 M. SWELL E 2-3 M. =
SCARBOROUGH= E TO SE 4-5. FINE. SEA UP TO 2 M. SWELL E TO NE 2-3 M. =
PARACEL= S TO SE 4-5. DOWN TO 500 M IN FOG PATCHES. SEA UP TO 2 M. SWELL E 2 M. =
TONKIN= S TO SE 4-5, OCNL 6. DOWN TO 500 M IN FOG PATCHES. SEA UP TO 3 M. =
DANANG= S TO SE 4-5, OCNL 6. DOWN TO 500 M IN FOG PATCHES. SEA UP TO 3 M. SWELL E 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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    Bulletin issued at 19:30 HKT 19/Mar/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 7:30 p.m. on 19 March 2019

    Warnings:
    Fog in all areas.

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

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    South to southeast force 4 to 5.
    Fog patches.
    Moderate seas.

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

    Outlook for the next 48 hours
    Southerly winds of force 4 to 5, becoming northeasterly winds of force 5 to 6 later, up to force 7 in east. Fog patches. Isolated showers and thunderstorms later.

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

    Waglan Island Wind east-southeast force 3
      Visibility 11 Kilometres

    Shantou Wind east force 2
      Visibility 16 Kilometres

    Dongsha Wind east-northeast force 2
      Visibility 10 Kilometres

    Huangmaozhou Wind east-southeast force 4

    Macau Wind east-southeast force 2
      Visibility 8 Kilometres

    Xisha Wind east-northeast force 2
      Visibility 23 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 19/MAR/2019
    (Next update at 17:30 HKT 19/MAR/2019)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     A WARM MARITIME AIRSTREAM IS AFFECTING THE COAST
     OF GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  140/5-10                             25-23
   B.   2000 FT:  160/15-20                            19
   C.   5000 FT:  200/15                               14
   D.  10000 FT:  270/20                               8
   E.  18000 FT:  270/35                               MS3
   F.  24000 FT:  250/40                               MS18
   G.  30000 FT:  250/60                               MS29
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY FINE. LOCALIZED MIST/HAZE.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2500 FT SCT 5000 FT
   K. VISIBILITY    : 7 KM. TEMPO 4000 M IN MIST.
   L. 0 DEG. C LEVEL: 16500 FT      10 DEG. C LEVEL(S) : 9200 FT
   M. TURBULENCE    : MOD NEAR HILLS.
   N. SEA STATE     : 0.5-1.0 M     SEA TEMPERATURE    : 22 DEG
IV.  FURTHER OUTLOOK: 
     LIGHT TO MODERATE SOUTH TO SOUTHEASTERLY WINDS.
     MAINLY FINE. LOCALIZED MIST/FOG.=

    ===================================================================
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 19/Mar/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     24.7 C
Minimum Air Temperature                     19.7 C
Grass Minimum Temperature                   18.7 C
Relative Humidity                        72 - 88 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January           240.7 mm
Against an average of                      113.9 mm

Other Stations                Min                  Max
King's Park                  18.9 C               24.8 C
Wong Chuk Hang               19.5 C               24.5 C
Ta Kwu Ling                  19.1 C               25.9 C
Lau Fau Shan                 18.2 C               24.0 C
Tai Po                       19.0 C               22.3 C
Sha Tin                      19.3 C               23.9 C
Tuen Mun                     19.5 C               25.5 C
Tseung Kwan O                18.4 C               23.4 C
Sai Kung                     19.1 C               23.1 C
Cheung Chau                  19.2 C               25.4 C
Chek Lap Kok                 20.2 C               24.9 C
Tsing Yi                     20.0 C               25.6 C
Shek Kong                    18.8 C               27.2 C
Tsuen Wan Ho Koon            17.8 C               25.3 C
Tsuen Wan Shing Mun Valley   19.4 C               26.4 C
Hong Kong Park               19.6 C               23.7 C
Shau Kei Wan                 19.1 C               22.7 C
Kowloon City                 18.7 C               25.2 C
Happy Valley                 19.8 C               25.4 C
Wong Tai Sin                 19.5 C               25.8 C
Stanley                      19.5 C               23.5 C
Kwun Tong                    18.7 C               24.2 C
Sham Shui Po                 19.3 C               25.4 C
Kai Tak Runway Park          19.6 C               23.5 C
Yuen Long Park               19.1 C               26.8 C
Tai Mei Tuk               18.0 C               24.7 C

Duration of sunshine (King's Park):              5.1 H
The mean UV index recorded at King's Park yesterday was 3,
the UV intensity was Moderate.
The maximum UV index for yesterday was 6.
 

Yesterday's (18 Mar 2019) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.08 to
0.14 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                             0.08
Kat O                               0.10
Yuen Ng Fan                         0.12
Tai Mei Tuk                         0.11
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                        0.14

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 18 Mar
     2003copy right image | Important notices | Privacy policy Last revision date: <19 Mar 2019> 

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