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Bulletin issued at 23:02 HKT 08/Mar/2018

At 11 p.m. at the Hong Kong Observatory the air temperature was 13 degrees Celsius and the relative humidity 69 per cent.

Please be reminded that:

The Cold Weather Warning is now in force. Cold weather might cause adverse health effects. Members of the public should take care to keep warm.

The air temperatures at other places were:

King's Park 12 degrees;
Wong Chuk Hang 13 degrees;
Ta Kwu Ling 11 degrees;
Lau Fau Shan 11 degrees;
Tai Po 12 degrees;
Sha Tin 13 degrees;
Tuen Mun 12 degrees;
Tseung Kwan O 11 degrees;
Sai Kung 12 degrees;
Cheung Chau 11 degrees;
Chek Lap Kok 13 degrees;
Tsing Yi 13 degrees;
Shek Kong 12 degrees;
Tsuen Wan Ho Koon 11 degrees;
Tsuen Wan Shing Mun Valley 12 degrees;
Hong Kong Park 13 degrees;
Shau Kei Wan 12 degrees;
Kowloon City 12 degrees;
Happy Valley 13 degrees;
Wong Tai Sin 12 degrees;
Stanley 12 degrees;
Kwun Tong 11 degrees;
Sham Shui Po 13 degrees;
Kai Tak Runway Park 13 degrees;
Yuen Long Park 12 degrees;
Tai Mei Tuk 11 degrees.


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


Climatological Information for 8 Mar

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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Local Weather Forecast

Automatic Regional Weather Forecast in Hong Kong & Pearl River Delta Region

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Bulletin updated at 23:15 HKT 08/Mar/2018

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

A cold front moved across the coast of Guangdong this morning. Under the influence the associated northeast monsoon, temperatures in Hong Hong fell appreciably today, and it was cloudy with occasional rain. Temperatures generally fell to around 13 degrees. More than 10 millimetres of rainfall were recorded over most parts of the territory today. The northeast monsoon is expected to bring cold weather to the south China coast tomorrow. Under the influence of a dry continental airstream, it will become fine over the region in the next couple of days.

Weather forecast for Hong Kong (Friday, 9 Mar 2018)

Cold with cloudy periods in the morning. The minimum temperature will be about 11 degrees in the urban areas, and a couple of degrees lower in the New Territories. Fine and dry during the day with a maximum temperature of around 18 degrees. Moderate to fresh north to northeasterly winds, occasionally strong offshore at first.

Outlook : Fine and dry during the weekend with relatively large temperature difference between day and night. Temperatures and humidity will rise gradually early next week.


(The above forecast period is valid up to 23:59 HKT tomorrow, 09/03/2018; 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 21:00 HKT 08/Mar/2018

GALE WARNING AREAS: HONG KONG, KWANGTUNG, TAIWAN STRAIT, BASHI, PRATAS, BALINTANG, SCARBOROUGH, PARACEL, TONKIN AND DANANG.

GENERAL SITUATION AT 080900 UTC:
AN INTENSE NORTHEAST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 081300 UTC:

HONG KONG= N 7-8. RAIN PATCHES. SEA UP TO 6 M. SWELL N 2-3 M. TEMP 11-18 C. =
KWANGTUNG= N 8. RAIN PATCHES. SEA 6 M. SWELL N 2-3 M. =
TAIWAN STRAIT= N 8, OCNL 9. RAIN PATCHES. SEA UP TO 8 M. SWELL N 3-4 M. =
BASHI= N 8, OCNL 9. RAIN PATCHES. SEA UP TO 8 M. SWELL N 3-4 M. =
PRATAS= N 8. RAIN PATCHES. SEA 6 M. SWELL N 2-3 M. =
BALINTANG= N 8. RAIN PATCHES. SEA 6 M. SWELL N 3 M. =
SCARBOROUGH= N 8. FINE. SEA 6 M. SWELL N 3 M. =
PARACEL= N 8. RAIN PATCHES. SEA 6 M. SWELL N 2-3 M. =
TONKIN= N 8. ISOL SHOWERS AND TS. SEA 6 M. SWELL N 2-3 M. =
DANANG= N 8. ISOL SHOWERS AND TS. SEA 6 M. SWELL N 2-3 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 08/Mar/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 11:30 p.m. on 08 March 2018

    Warnings:
    Gale force winds in all areas.

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

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    North to northeast force 7 to 8.
    One or two rain patches at first.
    Rough to very rough seas.

    Nan'ao, Shanwei, South of Hong Kong and Shangchuan Dao:
    North to northeast force 8.
    Very rough seas.

    Outlook for the next 48 hours
    East to northeasterly winds of force 6 to 7.

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

    Waglan Island Wind north force 6
      Visibility 27 Kilometres

    Shantou Wind east-southeast force 1
      Visibility 30 Kilometres in showers

    Huangmaozhou Wind north-northeast force 5

    Macau Wind north force 4
      Visibility 14 Kilometres

    Xisha Wind north-northeast force 3
      Visibility 22 Kilometres

  • Explanation of Seas or Sea Waves
  • Explanation of Swells
  • Descriptive Terms of Wind Speeds
  • 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 17:30 HKT 08/MAR/2018
    (Next update at 01:30 HKT 09/MAR/2018)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AN INTENSE 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:  040/10-15, OCNL 20
       OFFSHORE:  010/20-25, OCNL 30                   12-9
   B.   2000 FT:  030/25-30                            11
   C.   5000 FT:  040/20                               11
   D.  10000 FT:  300/25                               5
   E.  18000 FT:  260/50                               MS7
   F.  24000 FT:  280/70                               MS17
   G.  30000 FT:  270/85                               MS30
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      2000-2200 FT, 2800-3400 FT
   I. WEATHER       : 
      MAINLY CLOUDY WITH A FEW RAIN PATCHES.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT  SCT 3000 FT
   K. VISIBILITY    : 9 KM. TEMPO 4000 M IN RAIN.
   L. 0 DEG. C LEVEL: 13500 FT      10 DEG. C LEVEL(S) : 7200 FT
   M. TURBULENCE    : MOD TO SEV
   N. SEA STATE     : 2.0-4.0 M     SEA TEMPERATURE    : 16 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH NORTH TO NORTHEASTERLY WINDS.
     MAINLY FINE.=

    ===================================================================
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 15:35 HKT on 22 Feb 18

    VHHK SIGMET 1 VALID 220735/221135 VHHH- VHHK HONG KONG FIR SEV ICE FCST N OF N2030 AND E OF E11300 FL130/210 MOV E 10KT NC=

    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 08/Mar/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     20.6 C
Minimum Air Temperature                     17.6 C
Grass Minimum Temperature                   17.0 C
Relative Humidity                        75 - 85 Percent
Rainfall                                      Trace 
Total rainfall since 1st January            66.7 mm
Against an average of                       96.3 mm

Other Stations                Min                  Max
King's Park                  16.9 C               20.9 C
Wong Chuk Hang               17.4 C               22.7 C
Ta Kwu Ling                  17.0 C               22.6 C
Lau Fau Shan                 16.4 C               24.9 C
Tai Po                       17.6 C               20.1 C
Sha Tin                      17.3 C               21.0 C
Tuen Mun                     17.7 C               22.6 C
Tseung Kwan O                16.9 C               19.7 C
Sai Kung                     17.4 C               20.0 C
Cheung Chau                  17.1 C               21.1 C
Chek Lap Kok                 18.1 C               24.0 C
Tsing Yi                     17.9 C               22.9 C
Shek Kong                    17.7 C               24.5 C
Tsuen Wan Ho Koon            16.8 C               22.5 C
Tsuen Wan Shing Mun Valley   17.6 C               22.9 C
Hong Kong Park               17.4 C               20.1 C
Shau Kei Wan                 16.8 C               19.0 C
Kowloon City                 17.0 C               21.8 C
Happy Valley                 17.5 C               21.6 C
Wong Tai Sin                 17.1 C               21.0 C
Stanley                      17.0 C               19.6 C
Kwun Tong                    16.7 C               20.0 C
Sham Shui Po                 17.9 C               22.5 C
Kai Tak Runway Park          17.7 C               20.0 C
Yuen Long Park               17.6 C               25.9 C
Tai Mei Tuk               16.9 C               21.4 C

Duration of sunshine (King's Park):              1.1 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 4.
Sea surface temperature (Waglan Island):        17.1 C 

Yesterday's (07 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                        0.15

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 07 Mar
     2003copy right image | Important notices | Privacy policy Last revision date: <08 Mar 2018> 

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