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

At 11 p.m. at the Hong Kong Observatory the air temperature was 20 degrees Celsius and the relative humidity 72 per cent.

The air temperatures at other places were:

King's Park 18 degrees;
Wong Chuk Hang 17 degrees;
Ta Kwu Ling 17 degrees;
Lau Fau Shan 18 degrees;
Tai Po 17 degrees;
Sha Tin 16 degrees;
Tuen Mun 18 degrees;
Tseung Kwan O 16 degrees;
Sai Kung 17 degrees;
Cheung Chau 19 degrees;
Chek Lap Kok 19 degrees;
Tsing Yi 17 degrees;
Shek Kong 16 degrees;
Tsuen Wan Ho Koon 16 degrees;
Tsuen Wan Shing Mun Valley 16 degrees;
Hong Kong Park 19 degrees;
Shau Kei Wan 19 degrees;
Kowloon City 19 degrees;
Happy Valley 19 degrees;
Wong Tai Sin 18 degrees;
Stanley 18 degrees;
Kwun Tong 19 degrees;
Sham Shui Po 19 degrees;
Kai Tak Runway Park 19 degrees;
Yuen Long Park 17 degrees;
Tai Mei Tuk 18 degrees.


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


Climatological Information for 8 Apr

Regional Weather in Hong Kong

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Hong Kong Climatology


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

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

The northeast monsoon continued to affect Guangdong today. Locally, the weather was fine. It was dry in the afternoon and the relative humidity over the territory stayed around 50 per cent. The northeast monsoon is expected to moderate in the next couple of days. Temperatures over the region will rise gradually.

Weather forecast for Hong Kong (Monday, 9 Apr 2018)

Mainly fine. The minimum temperature will be about 19 degrees in the urban areas in the morning, and a couple of degrees lower in the New Territories. Warm during the day with a maximum temperature of around 26 degrees. Moderate easterly winds.

Outlook : Sunny periods in the following couple of days. Hot during the day in the middle and latter parts of this week.


(The above forecast period is valid up to 23:59 HKT tomorrow, 09/04/2018; 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/Apr/2018

GALE WARNING AREAS: BASHI, BALINTANG AND SCARBOROUGH.

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

MARINE FORECAST FOR 24 HOURS FROM 081300 UTC:

HONG KONG= E TO NE 4-5, OCNL 6. FINE. SEA UP TO 3 M. SWELL N TO NE 2 M. TEMP 19-26 C. =
KWANGTUNG= E TO NE 5-6. FINE. SEA 2-3 M. SWELL N TO NE 2-3 M. =
TAIWAN STRAIT= NE 5-6, OCNL 7. FINE. SEA UP TO 4 M. SWELL N TO NE 3 M. =
BASHI= E TO NE 6-7, OCNL 8. ISOL SHOWERS. SEA UP TO 6 M. SWELL N TO NE 3 M. =
PRATAS= E TO NE 6-7. ISOL SHOWERS. SEA 3-4 M. SWELL N TO NE 3 M. =
BALINTANG= E TO NE 6-7, OCNL 8. ISOL SHOWERS. SEA UP TO 6 M. SWELL N TO NE 3 M. =
SCARBOROUGH= NE 6-7, OCNL 8. ISOL SHOWERS. SEA UP TO 6 M. SWELL N TO NE 3 M. =
PARACEL= E TO NE 5-6, UP TO 7 IN S. ISOL SHOWERS. SEA 2-3 M, UP TO 4 M IN S. SWELL N TO NE 3 M. =
TONKIN= E TO NE 5-6. ISOL SHOWERS. SEA 2-3 M. SWELL N TO NE 2-3 M. =
DANANG= E TO NE 5-6. ISOL SHOWERS. SEA 2-3 M. SWELL N TO NE 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/Apr/2018

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

    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:
    East force 4 to 5, occasionally force 6.
    Moderate to rough seas.

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

    Outlook for the next 48 hours
    East to southeasterly winds of force 4 to 5, occasionally force 6.

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

    Waglan Island Wind east force 1
      Visibility 16 Kilometres

    Shantou Wind southeast force 2
      Visibility 30 Kilometres

    Dongsha Wind east force 4
      Visibility 10 Kilometres

    Huangmaozhou Wind east force 3

    Macau Wind south-southeast force 1
      Visibility 9 Kilometres

    Xisha Wind northeast force 3
      Visibility 12 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 08/APR/2018
    (Next update at 01:30 HKT 09/APR/2018)
    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 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  100/5-10
       OFFSHORE:  070/15                               24-18
   B.   2000 FT:  120/10-15                            15
   C.   5000 FT:  150/15                               12
   D.  10000 FT:  240/10                               7
   E.  18000 FT:  270/35                               MS8
   F.  24000 FT:  280/50                               MS17
   G.  30000 FT:  270/60                               MS31
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY FINE.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 4000 FT.
   K. VISIBILITY    : 10 KM.
   L. 0 DEG. C LEVEL: 13000 FT      10 DEG. C LEVEL(S) : 8000 FT
   M. TURBULENCE    : MOD OFFSHORE.
   N. SEA STATE     : 1.5-2.0 M     SEA TEMPERATURE    : 22 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EASTERLY 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 14:15 HKT on 07 Apr 18

    VHHK SIGMET 1 VALID 070615/071015 VHHH- VHHK HONG KONG FIR SEV ICE OBS N OF N2030 AND E OF E11230 FL140/200 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/Apr/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     20.3 C
Minimum Air Temperature                     16.1 C
Grass Minimum Temperature                   15.8 C
Relative Humidity                        35 - 60 Percent
Rainfall                                      Trace 
Total rainfall since 1st January            89.4 mm
Against an average of                      201.5 mm

Other Stations                Min                  Max
King's Park                  14.9 C               19.8 C
Wong Chuk Hang               15.8 C               19.7 C
Ta Kwu Ling                  14.1 C               20.2 C
Lau Fau Shan                 14.1 C               19.6 C
Tai Po                       15.9 C               19.6 C
Sha Tin                      15.0 C               19.9 C
Tuen Mun                     14.7 C               19.9 C
Tseung Kwan O                14.6 C               19.5 C
Sai Kung                     14.5 C               19.4 C
Cheung Chau                  15.8 C               19.7 C
Chek Lap Kok                 15.6 C               21.3 C
Tsing Yi                     16.2 C               20.1 C
Shek Kong                    14.8 C               20.6 C
Tsuen Wan Ho Koon            14.2 C               18.6 C
Tsuen Wan Shing Mun Valley   15.6 C               19.5 C
Hong Kong Park               15.9 C               19.7 C
Shau Kei Wan                 14.6 C               20.4 C
Kowloon City                 14.1 C               19.7 C
Happy Valley                 16.1 C               20.3 C
Wong Tai Sin                 14.7 C               19.8 C
Stanley                      15.2 C               19.5 C
Kwun Tong                    14.3 C               19.5 C
Sham Shui Po                 15.7 C               20.1 C
Kai Tak Runway Park          15.7 C               20.2 C
Yuen Long Park               14.7 C               19.9 C
Tai Mei Tuk               14.2 C               19.5 C

Duration of sunshine (King's Park):              0.5 H
The mean UV index recorded at King's Park yesterday was 1,
the UV intensity was Low.
The maximum UV index for yesterday was 3.
Sea surface temperature (Waglan Island):        21.9 C 

Yesterday's (07 Apr 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                               0.11
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 Apr
     2003copy right image | Important notices | Privacy policy Last revision date: <08 Apr 2018> 

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