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

At 9 a.m. at the Hong Kong Observatory the air temperature was 12 degrees Celsius and the relative humidity 62 per cent.
During the past hour the mean UV Index recorded at King's Park was 1. The intensity of UV radiation was low.

Please be reminded that:

The Fire Danger Warning is Red and the fire risk is extreme.
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 14 degrees;
Ta Kwu Ling 11 degrees;
Lau Fau Shan 10 degrees;
Tai Po 13 degrees;
Sha Tin 13 degrees;
Tuen Mun 12 degrees;
Tseung Kwan O 12 degrees;
Sai Kung 12 degrees;
Cheung Chau 12 degrees;
Chek Lap Kok 12 degrees;
Tsing Yi 12 degrees;
Shek Kong 12 degrees;
Tsuen Wan Ho Koon 10 degrees;
Tsuen Wan Shing Mun Valley 13 degrees;
Hong Kong Park 12 degrees;
Shau Kei Wan 14 degrees;
Kowloon City 12 degrees;
Happy Valley 14 degrees;
Wong Tai Sin 13 degrees;
Stanley 12 degrees;
Kwun Tong 13 degrees;
Sham Shui Po 13 degrees;
Kai Tak Runway Park 14 degrees;
Yuen Long Park 13 degrees;
Tai Mei Tuk 14 degrees.

Between midnight and 9 a.m. the minimum temperature was 11.1 degrees Celsius at the Hong Kong Observatory.


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


Climatological Information for 9 Mar

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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Bulletin updated at 08:45 HKT 09/Mar/2018

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

The northeast monsoon is bringing cold weather to the south China coastal areas. Locally, temperatures fell to around 11 degrees in the urban areas this morning, and even fell below 10 degrees over parts of the New Territories.

Weather forecast for today

Fine and dry. Cold in the morning. The maximum temperature will be around 18 degrees during the day. Moderate to fresh north to northeasterly winds.

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 today, 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 09:00 HKT 09/Mar/2018

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

GENERAL SITUATION AT 082100 UTC:
AN INTENSE NORTHEAST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 090100 UTC:

HONG KONG= N TO NE 6-7, OCNL 8. FINE. SEA UP TO 6 M. SWELL N 2-3 M. TEMP 18-13 C. =
KWANGTUNG= N TO NE 7-8. FINE. SEA 4-6 M. SWELL N 2-4 M. =
TAIWAN STRAIT= N TO NE 7-8, OCNL 9. FINE. SEA UP TO 8 M. SWELL N 4 M. =
BASHI= N TO NE 7-8, OCNL 9. RAIN PATCHES. SEA UP TO 8 M. SWELL N 3-4 M. =
PRATAS= N TO NE 7-8. RAIN PATCHES. SEA 4-6 M. SWELL N 3-4 M. =
BALINTANG= N TO NE 8, OCNL 9. RAIN PATCHES. SEA UP TO 8 M. SWELL N 3-4 M. =
SCARBOROUGH= N TO NE 8, OCNL 9. FINE. SEA UP TO 8 M. SWELL N 3-4 M. =
PARACEL= N TO NE 7-8. RAIN PATCHES. SEA 4-6 M. SWELL N 3-4 M. =
TONKIN= N TO NE 7-8. RAIN PATCHES. SEA 4-6 M. SWELL N 3 M. =
DANANG= N TO NE 7-8. RAIN PATCHES. SEA 4-6 M. SWELL N 3-4 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 09/Mar/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 9:30 a.m. on 09 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 6 to 7, occasionally force 8.
    Rough to very rough seas.

    Nan'ao, Shanwei, South of Hong Kong and Shangchuan Dao:
    North to northeast force 7 to 8.
    Rough to 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 5
      Visibility 34 Kilometres

    Shantou Wind east-northeast force 1
      Visibility 30 Kilometres

    Dongsha Wind northeast force 5
      Visibility 10 Kilometres

    Huangmaozhou Wind north-northeast force 4

    Macau Wind north-northeast force 4
      Visibility 21 Kilometres

    Xisha Wind northeast force 4
      Visibility 9 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 09:30 HKT 09/MAR/2018
    (Next update at 12:30 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 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  020/10-15
                  BECMG 070/10
       OFFSHORE:  020/15-20 OCNL 25
                  BECMG 070/15 OCNL 20                 12-18
   B.   2000 FT:  040/15-20                            8
   C.   5000 FT:  060/20                               9
   D.  10000 FT:  320/20                               3
   E.  18000 FT:  290/60                               MS11
   F.  24000 FT:  270/85                               MS19
   G.  30000 FT:  270/100                              MS29
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      3600-4100 FT
   I. WEATHER       : 
      FINE.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      NO CLOUDS OF HEIGHT AT OR BELOW 10000 FT
   K. VISIBILITY    : 10 KM
   L. 0 DEG. C LEVEL: 11500 FT      10 DEG. C LEVEL(S) : 1500 FT
   M. TURBULENCE    : MOD TO SEV OFFSHORE. MOD NEAR HILLS.
   N. SEA STATE     : 2.0-3.0 M     SEA TEMPERATURE    : 15 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EAST TO NORTHEASTERLY WINDS, FRESH
     OFFSHORE. 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 09/Mar/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     20.5 C
Minimum Air Temperature                     12.5 C
Grass Minimum Temperature                   12.1 C
Relative Humidity                        66 - 97 Percent
Rainfall                                    20.3 mm 
Total rainfall since 1st January            87.0 mm
Against an average of                       96.7 mm

Other Stations                Min                  Max
King's Park                  11.9 C               19.7 C
Wong Chuk Hang               12.3 C               21.0 C
Ta Kwu Ling                  11.2 C               19.5 C
Lau Fau Shan                 11.1 C               19.9 C
Tai Po                       11.4 C               19.1 C
Sha Tin                      12.2 C               19.7 C
Tuen Mun                     11.9 C               21.2 C
Tseung Kwan O                11.0 C               18.6 C
Sai Kung                     11.8 C               19.2 C
Cheung Chau                  11.0 C               19.1 C
Chek Lap Kok                 12.6 C               21.9 C
Tsing Yi                     12.5 C               20.5 C
Shek Kong                    11.6 C               21.0 C
Tsuen Wan Ho Koon            10.1 C               19.6 C
Tsuen Wan Shing Mun Valley   11.5 C               20.2 C
Hong Kong Park               12.4 C               20.1 C
Shau Kei Wan                 11.5 C               18.8 C
Kowloon City                 11.4 C               19.4 C
Happy Valley                 12.6 C               20.9 C
Wong Tai Sin                 11.6 C               19.9 C
Stanley                      12.1 C               19.2 C
Kwun Tong                    11.0 C               19.8 C
Sham Shui Po                 12.2 C               20.5 C
Kai Tak Runway Park          12.6 C               19.5 C
Yuen Long Park               11.7 C               21.2 C
Tai Mei Tuk               11.1 C               19.1 C

Duration of sunshine (King's Park):              0 H
The mean UV index recorded at King's Park yesterday was 0.9,
the UV intensity was Low.
The maximum UV index for yesterday was 3.
Sea surface temperature (Waglan Island):        17.8 C 

Yesterday's (08 Mar 2018) 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                               0.11
Yuen Ng Fan                         0.12
Tai Mei Tuk                         0.13
Sha Tau Kok                         0.11
Kwun Tong                           0.12
Sai Wan Ho                          0.10
King's Park                         0.15
Tsim Bei Tsui                       0.14
Cape D'Aguilar                      0.14
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 08 Mar
     2003copy right image | Important notices | Privacy policy Last revision date: <09 Mar 2018> 

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