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Bulletin issued at 17:02 HKT 17/Feb/2017

At 5 p.m. at the Hong Kong Observatory the air temperature was 24 degrees Celsius and the relative humidity 56 per cent.
During the past hour the mean UV Index recorded at King's Park was 1. The intensity of UV radiation was low.

The air temperatures at other places were:

King's Park 23 degrees;
Wong Chuk Hang 23 degrees;
Ta Kwu Ling 25 degrees;
Lau Fau Shan 22 degrees;
Tai Po 24 degrees;
Sha Tin 24 degrees;
Tuen Mun 22 degrees;
Tseung Kwan O 22 degrees;
Sai Kung 20 degrees;
Cheung Chau 21 degrees;
Chek Lap Kok 24 degrees;
Tsing Yi 23 degrees;
Shek Kong 25 degrees;
Tsuen Wan Ho Koon 22 degrees;
Tsuen Wan Shing Mun Valley 24 degrees;
Hong Kong Park 21 degrees;
Shau Kei Wan 22 degrees;
Kowloon City 24 degrees;
Happy Valley 24 degrees;
Wong Tai Sin 24 degrees;
Stanley 21 degrees;
Kwun Tong 23 degrees;
Sham Shui Po 23 degrees;
Kai Tak Runway Park 22 degrees;
Yuen Long Park 23 degrees;
Tai Mei Tuk 23 degrees.


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


Climatological Information for 17 Feb

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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

Current Weather | Regional Temperature Forecast in HK |  9-day Weather Forecast
UV Index Forecast |  Weather Information for South China Coastal Waters

Bulletin updated at 17:15 HKT 17/Feb/2017

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

A weak ridge of high pressure is bringing mainly fine and dry weather to the coast of southeastern China. Locally, the relative humidity in many places were below 60 per cent in the afternoon.

Weather forecast for tonight and tomorrow

Mainly fine. Visibility relatively low tonight and tomorrow morning. The minimum temperature will be about 18 degrees in the urban areas, and a couple of degrees lower in the New Territories. The maximum temperature will be around 24 degrees during the day. Light winds, becoming moderate easterlies later tomorrow.

Outlook : Cloudier on Sunday. A few rain patches early next week.


(The above forecast period is valid up to 23:59 HKT tomorrow, 18/02/2017; 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 17/Feb/2017

N0 WARNING.

GENERAL SITUATION AT 162100 UTC:
AN EASTERLY AIRSTREAM IS GENERALLY AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 170100 UTC:

HONG KONG= E 3-4. FINE. DOWN TO 4000 M IN MIST. TEMP 24-17 C. =
KWANGTUNG= E TO NE 4-5. FINE. SEA UP TO 2 M. =
TAIWAN STRAIT= NE 3-4, 5-6 LATER. FINE. SEA UP TO 2-3 M LATER. =
BASHI= E 5-6, OCNL 7. CLD. SEA UP TO 4 M. SWELL NE 2-3 M. =
PRATAS= E TO NE 5-6. FINE. SEA 2-3 M. SWELL NE 2 M. =
BALINTANG= E 5-6, OCNL 7. CLD. SEA UP TO 4 M. SWELL NE 2-3 M. =
SCARBOROUGH= NE 6-7. FINE. SEA 3-4 M. SWELL NE 2-3 M. =
PARACEL= E TO NE 5-6. CLD. SEA 2-3 M. SWELL NE 2 M. =
TONKIN= E TO NE 4. RAIN PATCHES. =
DANANG= E TO NE 4-5. FINE. SEA 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 16:30 HKT 17/Feb/2017

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 4:30 p.m. on 17 February 2017

    Warnings:
    Strong winds in Nan'ao and Shanwei.

    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 3 to 4, becoming force 5 later.
    Visibility relatively low tonight and tomorrow morning.
    Slight to moderate seas.

    Nan'ao and Shanwei:
    East to northeast force 4 to 5, becoming force 6 later.
    Moderate seas, becoming rough later.

    South of Hong Kong and Shangchuan Dao:
    East to northeast force 4 to 5.
    Moderate seas.

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

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

    Waglan Island Wind east-southeast force 1
      Visibility 16 Kilometres

    Shantou Wind east force 2
      Visibility 15 Kilometres

    Dongsha Wind east-northeast force 3
      Visibility 10 Kilometres

    Huangmaozhou Wind east-northeast force 3

    Macau Wind east force 2
      Visibility 14 Kilometres

    Xisha Wind northeast force 3
      Visibility 26 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 17:30 HKT 17/FEB/2017
    (Next update at 01:30 HKT 18/FEB/2017)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AN EASTERLY AIRSTREAM IS AFFECTING THE SOUTH
     CHINA COASTAL WATERS.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  060/5-10                             22-18
   B.   2000 FT:  080/10                               17
   C.   5000 FT:  040/5-10                             12
   D.  10000 FT:  280/20                               8
   E.  18000 FT:  260/35                               MS9
   F.  24000 FT:  250/60                               MS19
   G.  30000 FT:  260/80                               MS31
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY FINE. LOCALIZED MIST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 4000 FT.
   K. VISIBILITY    : 9 KM. TEMPO 4000 M IN MIST
   L. 0 DEG. C LEVEL: 15000 FT      10 DEG. C LEVEL(S) : 5800 FT
   M. TURBULENCE    : NIL
   N. SEA STATE     : 0.5-1.0 M     SEA TEMPERATURE    : 17 DEG
IV.  FURTHER OUTLOOK: 
     LIGHT TO MODERATE EASTERLY WINDS. MAINLY FINE.
     LOCALIZED HAZE.=

    ===================================================================
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=

    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 17/Feb/2017 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     24.0 C
Minimum Air Temperature                     15.4 C
Grass Minimum Temperature                   13.8 C
Relative Humidity                        51 - 82 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January            12.7 mm
Against an average of                       54.0 mm

Other Stations                Min                  Max
King's Park                  14.2 C               24.3 C
Wong Chuk Hang               13.9 C               22.2 C
Ta Kwu Ling                  12.4 C               25.8 C
Sha Tin                      12.1 C               25.0 C
Tseung Kwan O                12.6 C               23.6 C
Sai Kung                     13.1 C               19.5 C
Cheung Chau                  14.5 C               20.8 C
Chek Lap Kok                 16.6 C               23.3 C
Tsing Yi                     13.5 C               24.1 C
Shek Kong                    11.4 C               25.5 C
Tsuen Wan Ho Koon            13.4 C               23.5 C
Tsuen Wan Shing Mun Valley   12.7 C               25.0 C
Hong Kong Park               14.3 C               22.4 C
Shau Kei Wan                 14.2 C               21.3 C
Kowloon City                 14.3 C               24.8 C
Happy Valley                 12.9 C               24.9 C
Wong Tai Sin                 13.8 C               25.6 C
Stanley                      14.9 C               21.8 C
Kwun Tong                    14.9 C               24.6 C
Sham Shui Po                 14.7 C               24.7 C
Kai Tak Runway Park          15.9 C               20.6 C
Yuen Long Park               11.8 C               25.3 C
Tai Mei Tuk               14.2 C               24.2 C

Duration of sunshine (King's Park):              10.6 H
The mean UV index recorded at King's Park yesterday was 3,
the UV intensity was Moderate.
The maximum UV index for yesterday was 7.
Sea surface temperature (Waglan Island):        17.4 C 

Yesterday's (16 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                          0.09
King's Park                         0.14
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 16 Feb
     2003copy right image | Important notices | Privacy policy Last revision date: <17 Feb 2017> 

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