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Bulletin issued at 13:02 HKT 06/Feb/2017

At 1 p.m. at the Hong Kong Observatory the air temperature was 19 degrees Celsius and the relative humidity 80 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 19 degrees;
Wong Chuk Hang 20 degrees;
Ta Kwu Ling 21 degrees;
Lau Fau Shan 24 degrees;
Tai Po 19 degrees;
Sha Tin 20 degrees;
Tuen Mun 21 degrees;
Tseung Kwan O 18 degrees;
Sai Kung 18 degrees;
Cheung Chau 19 degrees;
Chek Lap Kok 22 degrees;
Tsing Yi 21 degrees;
Shek Kong 22 degrees;
Tsuen Wan Ho Koon 21 degrees;
Tsuen Wan Shing Mun Valley 22 degrees;
Hong Kong Park 16 degrees;
Shau Kei Wan 17 degrees;
Kowloon City 21 degrees;
Wong Tai Sin 20 degrees;
Stanley 18 degrees;
Kwun Tong 18 degrees;
Sham Shui Po 22 degrees;
Kai Tak Runway Park 18 degrees;
Yuen Long Park 23 degrees;
Tai Mei Tuk 19 degrees.


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


Climatological Information for 6 Feb

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


Local Weather Forecast
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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 12:45 HKT 06/Feb/2017

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

A strong easterly airstream is affecting the coast of Guangdong and its adjacent waters.

Weather forecast for this afternoon and tonight

Sunny periods in the afternoon. Cloudy tonight. Moderate to fresh easterly winds, strong offshore later.

Outlook : Temperatures will fall appreciably on Thursday. Cold mornings in the following couple of days. Temperature difference between day and night will be relatively large.


(The above forecast period is valid up to 23:59 HKT today, 06/02/2017; Regular update at : around 45 minutes past each hour, 16:15 HKT and 23:15 HKT)

Information on Tropical Cyclones

Marine Weather Information and Forecast

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MARINE FORECAST
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Marine Forecast

Weather Information for the Marine Community

Bulletin issued at 09:00 HKT 06/Feb/2017

GALE WARNING AREAS: TAIWAN STRAIT, BASHI, PRATAS AND BALINTANG.

GENERAL SITUATION AT 052100 UTC:
AN INTENSE NORTHEAST MONSOON IS GENERALLY AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 060100 UTC:

HONG KONG= E 6-7. FINE. SEA 3-4 M. SWELL E UP TO 2 M. TEMP 20-16 C. =
KWANGTUNG= E TO NE 6-7. FINE. SEA 3-4 M. SWELL NE 2 M. =
TAIWAN STRAIT= NE 7-8. FINE. SEA 4-6 M. SWELL NE 2 M, UP TO 3 M LATER. =
BASHI= NE 7-8. RAIN PATCHES. SEA 4-6 M. SWELL NE 2 M, UP TO 3 M LATER. =
PRATAS= E TO NE 6-7, OCNL 8 LATER. RAIN PATCHES. SEA 3-4 M, UP TO 6 M LATER. SWELL E TO NE 2 M. =
BALINTANG= E 7-8. RAIN PATCHES. SEA 4-6 M. SWELL E TO NE 2 M, UP TO 3 M LATER. =
SCARBOROUGH= NE 6-7. RAIN PATCHES. SEA 3-4 M. SWELL NE 2 M. =
PARACEL= NE 5-6, OCNL 7. FINE. SEA UP TO 4 M. SWELL NE 2 M. =
TONKIN= E 4-5. FINE. SEA UP TO 2 M. =
DANANG= NE 4-5, OCNL 6. FINE. 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 12:30 HKT 06/Feb/2017

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 12:30 p.m. on 06 February 2017

    Warnings:
    Strong winds in all areas.

    Weather Situation:
    An easterly airstream is affecting the south China coastal waters.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East force 6 to 7.
    Rough seas.

    Nan'ao, Shanwei and South of Hong Kong:
    East to northeast force 6 to 7.
    Rough seas.

    Shangchuan Dao:
    East force 6, occasionally force 7.
    Rough seas.

    Outlook for the next 48 hours
    East to northeasterly winds of force 5 to 6, occasionally force 7.

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

    Waglan Island Wind east-northeast force 5
      Visibility 8 Kilometres

    Shantou Wind east force 3
      Visibility 21 Kilometres

    Dongsha Wind northeast force 5
      Visibility 10 Kilometres

    Huangmaozhou Wind east-northeast force 7

    Macau Wind east force 2
      Visibility 8 Kilometres

    Xisha Wind northeast force 3
      Visibility 16 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
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    Weather Forecast for Local Aviation

    Bulletin issued at 09:30 HKT 06/FEB/2017
    (Next update at 17:30 HKT 06/FEB/2017)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     A STRONG EASTERLY AIRSTREAM IS AFFECTING THE
     COASTAL AREAS OF GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  090/10-15
       OFFSHORE:  090/20-25, OCNL 30                   19-22
   B.   2000 FT:  090/20-25                            12
   C.   5000 FT:  100/15                               11
   D.  10000 FT:  120/10                               4
   E.  18000 FT:  350/35                               MS11
   F.  24000 FT:  320/45                               MS19
   G.  30000 FT:  260/60                               MS25
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      4700-5000FT
   I. WEATHER       : 
      SUNNY PERIODS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2500 FT.
   K. VISIBILITY    : 8 KM.
   L. 0 DEG. C LEVEL: 14300 FT      10 DEG. C LEVEL(S) : 6600 FT
   M. TURBULENCE    : MOD TO SEV.
   N. SEA STATE     : 2.5-3.5 M     SEA TEMPERATURE    : 17 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH EASTERLY WINDS, OCCASIONALLY
     STRONG OFFSHORE. 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.

    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 10:58 HKT on 06 Feb 17

    VHHK SIGMET 1 VALID 060300/060700 VHHH- VHHK HONG KONG FIR SEV TURB FCST S OF N2030 FL220/390 MOV E 10KT WKN= VHHK SIGMET 10 VALID 052300/060300 VHHH- VHHK HONG KONG FIR SEV TURB FCST WI N2100 E11730 - N1642 E11400 - N1930 - E11130 - N2130 E11130 - N2400 E11730 - N2100 E11730 FL160/420 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 06/Feb/2017 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     22.0 C
Minimum Air Temperature                     16.7 C
Grass Minimum Temperature                   16.6 C
Relative Humidity                        68 - 97 Percent
Rainfall                                     3.3 mm 
Total rainfall since 1st January            12.7 mm
Against an average of                       30.8 mm

Other Stations                Min                  Max
King's Park                  16.1 C               22.9 C
Wong Chuk Hang               15.8 C               23.7 C
Ta Kwu Ling                  15.6 C               23.6 C
Lau Fau Shan                 16.1 C               22.5 C
Tai Po                       15.9 C               23.4 C
Sha Tin                      16.0 C               24.0 C
Tuen Mun                     16.7 C               23.8 C
Tseung Kwan O                15.6 C               24.7 C
Sai Kung                     16.3 C               22.6 C
Cheung Chau                  15.7 C               23.9 C
Chek Lap Kok                 17.8 C               23.2 C
Tsing Yi                     16.0 C               23.0 C
Shek Kong                    16.2 C               23.4 C
Tsuen Wan Ho Koon            15.2 C               21.7 C
Tsuen Wan Shing Mun Valley   15.6 C               22.8 C
Hong Kong Park               15.7 C               23.6 C
Shau Kei Wan                 16.0 C               23.8 C
Kowloon City                 15.9 C               23.8 C
Happy Valley                 16.3 C               24.7 C
Wong Tai Sin                 16.1 C               24.1 C
Stanley                      15.8 C               23.9 C
Kwun Tong                    16.3 C               24.4 C
Sham Shui Po                 16.5 C               23.7 C
Kai Tak Runway Park          17.0 C               23.9 C
Yuen Long Park               16.1 C               23.9 C
Tai Mei Tuk               15.8 C               25.2 C

Duration of sunshine (King's Park):              4.4 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 7.
Sea surface temperature (Waglan Island):        18.3 C 

Yesterday's (05 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                         0.11
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                        0.15

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 05 Feb
     2003copy right image | Important notices | Privacy policy Last revision date: <06 Feb 2017> 

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