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Bulletin issued at 11:02 HKT 11/Mar/2019

At 11 a.m. at the Hong Kong Observatory the air temperature was 18 degrees Celsius and the relative humidity 82 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 18 degrees;
Wong Chuk Hang 18 degrees;
Ta Kwu Ling 18 degrees;
Lau Fau Shan 17 degrees;
Tai Po 17 degrees;
Sha Tin 18 degrees;
Tuen Mun 18 degrees;
Tseung Kwan O 17 degrees;
Sai Kung 17 degrees;
Cheung Chau 17 degrees;
Chek Lap Kok 17 degrees;
Tsing Yi 18 degrees;
Shek Kong 18 degrees;
Tsuen Wan Ho Koon 17 degrees;
Tsuen Wan Shing Mun Valley 18 degrees;
Hong Kong Park 18 degrees;
Shau Kei Wan 18 degrees;
Kowloon City 18 degrees;
Happy Valley 19 degrees;
Wong Tai Sin 19 degrees;
Stanley 18 degrees;
Kwun Tong 18 degrees;
Sham Shui Po 18 degrees;
Kai Tak Runway Park 19 degrees;
Yuen Long Park 18 degrees;
Tai Mei Tuk 18 degrees.


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


Climatological Information for 11 Mar

Regional Weather in Hong Kong

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Bulletin updated at 10:45 HKT 11/Mar/2019

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

The northeast monsoon is bringing cool weather to Guangdong. The cloud band covering the region is thinning out gradually.

Weather forecast for today

Mainly cloudy. Cool in the morning. Sunny periods in the afternoon. Moderate north to northeasterly winds.

Outlook : Fine and dry tomorrow. Becoming cloudy with a few showers in the middle and latter parts of this week.


(The above forecast period is valid up to 23:59 HKT today, 11/03/2019; 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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Weather Information for the Marine Community

Bulletin issued at 09:00 HKT 11/Mar/2019

N0 WARNING.

GENERAL SITUATION AT 102100 UTC:
THE NORTHEAST MONSOON IS GENERALLY AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 110100 UTC:

HONG KONG= N TO NE 4-5, OCNL 6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 3 M. SWELL NE UP TO 2 M. TEMP 20-17 C. =
KWANGTUNG= N TO NE 5-6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL NE 2 M. =
TAIWAN STRAIT= N TO NE 5-6. DOWN TO 2000 M IN MIST PATCHES. ISOL SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL N TO NE 2 M. =
BASHI= N TO NE 5-6, OCNL 7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 4 M. SWELL N TO NE 2-3 M. =
PRATAS= N TO NE 5-6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL N TO NE 2 M. =
BALINTANG= W 5-6, BEC N TO NE 5-6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS LATER. SEA 2-3 M. SWELL N TO NE 2-3 M. =
SCARBOROUGH= NW 4-5, NE 4-5 LATER. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS LATER. SEA UP TO 2 M. SWELL NE 2 M. =
PARACEL= N TO NE 4-5, OCNL 6. ISOL SHOWERS AND TS. SEA UP TO 3 M. SWELL NE 2 M. =
TONKIN= N TO NE 4-5, OCNL 6. DOWN TO 2000 M IN MIST OR RAIN PATCHES. SEA UP TO 3 M. =
DANANG= N TO NE 4-5, OCNL 6. ISOL SHOWERS. SEA UP TO 3 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 09:30 HKT 11/Mar/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 9:30 a.m. on 11 March 2019

    Warnings:
    Strong winds in all areas.

    Weather Situation:
    The northeast monsoon is affecting the south China coastal waters.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    North to northeast force 4 to 5, occasionally force 6.
    Isolated squally showers and thunderstorms.
    Moderate to rough seas.

    Nan'ao and Shanwei:
    North to northeast force 5 to 6.
    Isolated squally showers and thunderstorms.
    Moderate to rough seas.

    South of Hong Kong and Shangchuan Dao:
    North to northeast force 4 to 5, occasionally force 6.
    Isolated squally showers and thunderstorms.
    Moderate to rough seas.

    Outlook for the next 48 hours
    Northeasterly winds of force 5 to 6, becoming easterly winds of force 6 later. Isolated showers and thunderstorms later.

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

    Waglan Island Wind north force 2
      Visibility 33 Kilometres

    Shantou Wind east-northeast force 1
      Visibility 16 Kilometres

    Huangmaozhou Wind north force 2

    Macau Wind north force 2
      Visibility 4800 Metres in mist

    Xisha Wind south-southwest force 2
      Visibility 18 Kilometres

  • Explanation of Seas or Sea Waves
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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 11/MAR/2019
    (Next update at 12:30 HKT 11/MAR/2019)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL.
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 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  010/5-10
                  BECMG 070/5-10
       OFFSHORE:  010/10
                  BECMG 070/10                         16-21
   B.   2000 FT:  360/10-15                            14
   C.   5000 FT:  320/15                               13
   D.  10000 FT:  280/30                               5
   E.  18000 FT:  280/85                               MS2
   F.  24000 FT:  280/80                               MS13
   G.  30000 FT:  280/80                               MS27
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      1600-2600 FT
   I. WEATHER       : 
      MAINLY CLOUDY WITH A FEW RAIN PATCHES. SUNNY
      PERIODS IN THE AFTERNOON.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT  SCT 3500 FT
   K. VISIBILITY    : 7 KM.  TEMPO 4000 M IN RAIN.
   L. 0 DEG. C LEVEL: 12500 FT      10 DEG. C LEVEL(S) : 7200 FT
   M. TURBULENCE    : NIL
   N. SEA STATE     : 0.5-1.0 M     SEA TEMPERATURE    : 20 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EAST TO NORTHEASTERLY 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.

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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 11/Mar/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     18.5 C
Minimum Air Temperature                     17.0 C
Grass Minimum Temperature                   16.4 C
Relative Humidity                        78 - 94 Percent
Rainfall                                     4.6 mm 
Total rainfall since 1st January           226.3 mm
Against an average of                       98.7 mm

Other Stations                Min                  Max
King's Park                  16.7 C               18.5 C
Wong Chuk Hang               16.4 C               18.9 C
Ta Kwu Ling                  15.6 C               17.1 C
Lau Fau Shan                 15.4 C               16.6 C
Tai Po                       15.0 C               16.7 C
Sha Tin                      16.1 C               17.6 C
Tuen Mun                     16.2 C               17.1 C
Tseung Kwan O                15.9 C               18.0 C
Sai Kung                     16.8 C               18.2 C
Cheung Chau                  15.3 C               18.0 C
Chek Lap Kok                 16.6 C               18.6 C
Tsing Yi                     16.5 C               18.2 C
Shek Kong                    15.3 C               17.1 C
Tsuen Wan Ho Koon            14.9 C               16.8 C
Tsuen Wan Shing Mun Valley   16.4 C               17.6 C
Hong Kong Park               16.7 C               18.4 C
Shau Kei Wan                 16.5 C               18.8 C
Kowloon City                 16.1 C               18.1 C
Happy Valley                 17.1 C               19.5 C
Wong Tai Sin                 16.4 C               18.8 C
Stanley                      17.1 C               18.8 C
Kwun Tong                    16.7 C               18.7 C
Sham Shui Po                 16.6 C               17.8 C
Kai Tak Runway Park          17.0 C               19.0 C
Yuen Long Park               15.6 C               17.0 C
Tai Mei Tuk               15.8 C               17.2 C

Duration of sunshine (King's Park):              0 H
The mean UV index recorded at King's Park yesterday was 0.6,
the UV intensity was Low.
The maximum UV index for yesterday was 2.
 

Yesterday's (10 Mar 2019) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.09 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                           0.09
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                         0.14
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 10 Mar
     2003copy right image | Important notices | Privacy policy Last revision date: <11 Mar 2019> 

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