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Bulletin issued at 11:02 HKT 27/Feb/2017

At 11 a.m. at the Hong Kong Observatory the air temperature was 18 degrees Celsius and the relative humidity 54 per cent.
During the past hour the mean UV Index recorded at King's Park was 4. The intensity of UV radiation was moderate.

The air temperatures at other places were:

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


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


Climatological Information for 27 Feb

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


Local Weather Forecast
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Bulletin updated at 10:45 HKT 27/Feb/2017

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

The northeast monsoon affecting Guangdong is moderating gradually.

Weather forecast for today

Mainly cloudy. One or two light rain patches at first. Sunny periods in the afternoon. Moderate to fresh east to northeasterly winds.

Outlook : Mainly fine in the next couple of days. Mild during the day.


(The above forecast period is valid up to 23:59 HKT today, 27/02/2017; Regular update at : around 45 minutes past each hour, 16:15 HKT and 23:15 HKT)

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MARINE FORECAST
Traditional Chinese Simplified Chinese

Marine Forecast

Weather Information for the Marine Community

Bulletin issued at 09:00 HKT 27/Feb/2017

GALE WARNING AREAS: TAIWAN STRAIT AND BASHI.

GENERAL SITUATION AT 260900 UTC:
THE NORTHEAST MONSOON IS GENERALLY AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 270100 UTC:

HONG KONG= E TO NE 5, OCNL 6. A FEW LIGHT RAIN PATCHES AT FIRST. SEA 2-3 M. SWELL E 2 M. TEMP 19-15 C. =
KWANGTUNG= E TO NE 5-6, OCNL 7 IN E. A FEW LIGHT RAIN PATCHES AT FIRST. SEA 2-3 M, UP TO 4 M IN E. SWELL E 2 M. =
TAIWAN STRAIT= NE 7, OCNL 8. RAIN PATCHES. SEA 4-6 M. SWELL NE 2-3 M. =
BASHI= NE 6-7, OCNL 8 AT FIRST. CLD. SEA 4-6 M. SWELL NE 2-3 M. =
PRATAS= E TO NE 5-6, OCNL 7 IN N. CLD. SEA UP TO 4 M. SWELL E TO NE 2-3 M. =
BALINTANG= NE 6-7. RAIN PATCHES. SEA UP TO 4 M. SWELL NE 2-3 M. =
SCARBOROUGH= NE 6. A FEW RAIN PATCHES. SEA 3 M. SWELL NE 2-3 M. =
PARACEL= E TO NE 5-6. CLD. SEA UP TO 3 M. SWELL NE 2-3 M. =
TONKIN= N TO NE 5-6. RAIN PATCHES. SEA 2-3 M. =
DANANG= NE 5-6. CLD. SEA 2-3 M. SWELL NE 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 27/Feb/2017

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 9:30 a.m. on 27 February 2017

    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 to northeast force 5, occasionally force 6.
    One or two light rain patches at first.
    Moderate to rough seas.

    Nan'ao:
    Northeast force 6 to 7.
    Rough seas.

    Shanwei and South of Hong Kong:
    East to northeast force 5 to 6, occasionally force 7.
    Moderate to rough seas.

    Shangchuan Dao:
    East to northeast force 5 to 6.
    Moderate to rough seas.

    Outlook for the next 48 hours
    East to northeasterly winds of force 5 to 6, up to force 7 in east later.

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

    Waglan Island Wind east-northeast force 5
      Visibility 14 Kilometres

    Shantou Wind east force 1
      Visibility 4700 Metres in mist

    Dongsha Wind northeast force 4
      Visibility 10 Kilometres

    Huangmaozhou Wind east-northeast force 6

    Macau Wind north-northeast force 2
      Visibility 6 Kilometres

    Xisha Wind east-northeast force 4
      Visibility 14 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
  • Tidal Information

    • WEATHER FORECAST FOR LOCAL AVIATION
    Traditional Chinese Simplified Chinese

    Weather Forecast for Local Aviation

    Bulletin issued at 09:30 HKT 27/FEB/2017
    (Next update at 17:30 HKT 27/FEB/2017)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE NORTHEAST MONSOON AFFECTING THE COAST OF
     GUANGDONG WILL MODERATE GRADUALLY.
     
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  060/10-15
       OFFSHORE:  060/15-20, OCNL 25                   16-19
   B.   2000 FT:  070/15, OCNL 20                      10
   C.   5000 FT:  300/10                               9
   D.  10000 FT:  280/25                               3
   E.  18000 FT:  280/50                               MS8
   F.  24000 FT:  270/65                               MS16
   G.  30000 FT:  270/70                               MS31
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      3500 - 4200 FT
   I. WEATHER       : 
      MAINLY CLOUDY AT FIRST, SUNNY PERIODS DURING
      THE DAY.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT  SCT 3000 FT
   K. VISIBILITY    : 8 KM.
   L. 0 DEG. C LEVEL: 13500 FT      10 DEG. C LEVEL(S) : 2000 FT
   M. TURBULENCE    : MOD TO SEV OFFSHORE
   N. SEA STATE     : 1.0-3.0 M     SEA TEMPERATURE    : 16 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH EAST 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 05:12 HKT on 22 Feb 17

    VHHK SIGMET 6 VALID 211715/212115 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2345 E11730 - N2100 E11730 - N2100 E11330 - N2200 E11300 - N2245 E11500 - N2345 E11730 TOP FL400 MOV NE 10KT NC= VHHK SIGMET 7 VALID 212115/220115 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2345 E11730 - N2230 E11730 - N2130 E11430 - N2245 E11430 - N2345 E11730 TOP FL400 MOV NE 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 27/Feb/2017 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     17.0 C
Minimum Air Temperature                     10.6 C
Grass Minimum Temperature                   11.8 C
Relative Humidity                        66 - 95 Percent
Rainfall                                     1.4 mm 
Total rainfall since 1st January            27.7 mm
Against an average of                       75.4 mm

Other Stations                Min                  Max
King's Park                  10.2 C               17.2 C
Wong Chuk Hang               11.0 C               16.4 C
Ta Kwu Ling                   9.0 C               17.7 C
Lau Fau Shan                  9.1 C               16.9 C
Tai Po                        9.2 C               16.1 C
Sha Tin                       9.7 C               16.7 C
Tuen Mun                      9.6 C               16.8 C
Tseung Kwan O                 9.9 C               16.8 C
Sai Kung                     10.2 C               16.7 C
Cheung Chau                  10.1 C               16.1 C
Chek Lap Kok                 10.3 C               17.4 C
Tsing Yi                     10.2 C               17.4 C
Shek Kong                     9.5 C               17.9 C
Tsuen Wan Ho Koon             8.8 C               16.1 C
Tsuen Wan Shing Mun Valley   10.1 C               18.3 C
Hong Kong Park               10.8 C               17.0 C
Shau Kei Wan                 10.3 C               16.7 C
Kowloon City                  9.5 C               17.0 C
Happy Valley                 11.3 C               17.3 C
Wong Tai Sin                  9.6 C               17.5 C
Stanley                      11.2 C               16.4 C
Kwun Tong                    10.3 C               16.8 C
Sham Shui Po                 10.2 C               17.8 C
Kai Tak Runway Park          10.6 C               16.9 C
Yuen Long Park                9.4 C               17.8 C
Tai Mei Tuk                9.1 C               17.0 C

Duration of sunshine (King's Park):              0.6 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 5.
 

Yesterday's (26 Feb 2017) 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                          0.10
King's Park                         0.15
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 during
the period 1987-2016, the background ambient gamma radiation
levels may vary between 0.06 and 0.30 microsievert per hour.

    2. The extent of health effects to a person as a result of
exposure to radiation is expressed by a physical quantity
called equivalent dose, in unit of sievert.  Protective
action may be required if there is an increase in the
ambient gamma dose rate above background such that the total
additional dose is expected to exceed 5000 microsieverts in
a relatively short period of time. For example, a dose of
5000 microsieverts may be reached when the ambient gamma
dose rate is 1000 microsieverts per hour (several thousand
times above background) and lasts for 5 hours.

    3. The readings of ambient gamma radiation level from
instrument are expressed in unit of gray, which is
numerically equal to the gamma dose expressed in sievert.
    Climatological Information for 26 Feb
     2003copy right image | Important notices | Privacy policy Last revision date: <27 Feb 2017> 

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