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Bulletin issued at 05:02 HKT 26/Feb/2017

At 5 a.m. at the Hong Kong Observatory the air temperature was 11 degrees Celsius and the relative humidity 95 per cent.

Please be reminded that:

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 10 degrees;
Wong Chuk Hang 11 degrees;
Ta Kwu Ling 9 degrees;
Lau Fau Shan 9 degrees;
Tai Po 9 degrees;
Sha Tin 10 degrees;
Tuen Mun 10 degrees;
Tseung Kwan O 10 degrees;
Sai Kung 10 degrees;
Cheung Chau 10 degrees;
Chek Lap Kok 11 degrees;
Tsing Yi 10 degrees;
Shek Kong 10 degrees;
Tsuen Wan Ho Koon 9 degrees;
Tsuen Wan Shing Mun Valley 11 degrees;
Hong Kong Park 11 degrees;
Shau Kei Wan 11 degrees;
Kowloon City 10 degrees;
Happy Valley 11 degrees;
Wong Tai Sin 10 degrees;
Stanley 11 degrees;
Kwun Tong 10 degrees;
Sham Shui Po 11 degrees;
Kai Tak Runway Park 11 degrees;
Yuen Long Park 9 degrees;
Tai Mei Tuk 9 degrees.

Between 3:45 and 4:45 a.m., the rainfall recorded in various regions were:

Islands District 0 to 2 mm;
Kwai Tsing 0 to 2 mm;
Tai Po 0 to 2 mm;
Sha Tin 0 to 2 mm;
Tuen Mun 0 to 2 mm;
Yuen Long 0 to 2 mm;
Eastern District 0 to 1 mm;
Sham Shui Po 1 mm;
Sai Kung 0 to 1 mm;
Yau Tsim Mong 0 to 1 mm;
Wong Tai Sin 0 to 1 mm;
Kowloon City 0 to 1 mm;
Tsuen Wan 0 to 1 mm;
Kwun Tong 0 to 1 mm.


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


Climatological Information for 26 Feb

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


Local Weather Forecast
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Bulletin updated at 05:15 HKT 26/Feb/2017

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

An intense northeast monsoon is bringing cold weather to Guangdong. Locally, temperatures were generally around 11 degrees in the urban areas this morning, and a couple of degrees lower in the New Territories.

Weather forecast for today

Mainly cloudy. Cold with one or two light rain patches in the morning. Bright periods during the day. The maximum temperature will be about 16 degrees. Moderate north to northeasterly winds, fresh at times offshore.

Outlook : Becoming fine with temperatures rising gradually in the next couple of days.


(The above forecast period is valid up to 23:59 HKT today, 26/02/2017; 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 21:00 HKT 25/Feb/2017

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

GENERAL SITUATION AT 250900 UTC:
AN INTENSE NORTHEAST MONSOON IS GENERALLY AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 251300 UTC:

HONG KONG= N TO NE 5-6. RAIN PATCHES. SEA 2-3 M. SWELL NE UP TO 2 M. TEMP 11-16 C. =
KWANGTUNG= N TO NE 5-6, OCNL 7. RAIN PATCHES. SEA UP TO 4 M. SWELL NE 2 M. =
TAIWAN STRAIT= N TO NE 6-7, OCNL 8. RAIN PATCHES. SEA UP TO 6 M. SWELL NE 2-3 M. =
BASHI= N TO NE 6-7, OCNL 8. CLD. SEA UP TO 6 M. SWELL NE 2-3 M. =
PRATAS= N TO NE 5-6, OCNL 7. CLD. SEA UP TO 4 M. SWELL NE 2 M. =
BALINTANG= N TO NE 6-7, OCNL 8. RAIN PATCHES. SEA UP TO 6 M. SWELL NE 2-3 M. =
SCARBOROUGH= N TO NE 6-7, OCNL 8. RAIN PATCHES. SEA UP TO 6 M. SWELL NE 2-3 M. =
PARACEL= N TO NE 5-6, OCNL 7. RAIN PATCHES. SEA UP TO 4 M. SWELL NE 2-3 M. =
TONKIN= N TO NE 5-6, OCNL 7. RAIN PATCHES. SEA UP TO 4 M. SWELL NE UP TO 2 M. =
DANANG= N TO NE 5-6, OCNL 7. RAIN PATCHES. SEA UP TO 4 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 05:30 HKT 26/Feb/2017

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 5:30 a.m. on 26 February 2017

    Warnings:
    Strong winds in all areas.

    Weather Situation:
    The intense northeast monsoon is affecting the coastal waters of Guangdong.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    North to northeast force 5 to 6.
    A few rain patches at first.
    Moderate to rough seas.

    Nan'ao and Shanwei:
    North to northeast force 6, occasionally force 7.
    Rough seas.

    South of Hong Kong and Shangchuan Dao:
    North to northeast force 5 to 6, occasionally force 7.
    Moderate to rough seas.

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

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

    Waglan Island Wind north force 5
      Visibility 41 Kilometres

    Shantou Wind south force 1
      Visibility 4500 Metres in mist

    Dongsha Wind northeast force 4
      Visibility 10 Kilometres

    Huangmaozhou Wind north-northeast force 4

    Macau Wind north-northwest force 3
      Visibility 2700 Metres in mist

    Xisha Wind northeast force 2
      Visibility 18 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 01:30 HKT 26/FEB/2017
    (Next update at 9:00-9:30 HKT 26/FEB/2017)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE INTENSE NORTHEAST MONSOON IS AFFECTING THE
     COASTAL AREAS OF GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  020/10
       OFFSHORE:  020/15                               10-14
   B.   2000 FT:  040/10                               8
   C.   5000 FT:  250/10                               11
   D.  10000 FT:  270/35                               4
   E.  18000 FT:  260/55                               MS10
   F.  24000 FT:  260/75                               MS14
   G.  30000 FT:  260/70                               MS31
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      1900 - 2900 FT, 4100 - 5000 FT
   I. WEATHER       : 
      MAINLY CLOUDY. A FEW RAIN PATCHES IN THE
      MORNING. LOCALIZED MIST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1000 FT  SCT 2000 FT BKN 6000 FT
   K. VISIBILITY    : 7 KM. TEMPO 3000 M IN RAIN/MIST.
   L. 0 DEG. C LEVEL: 12500 FT      10 DEG. C LEVEL(S) : NEAR SURFACE, 4400, 7400 FT
   M. TURBULENCE    : MOD OFFSHORE
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 17 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE NORTH TO NORTHEASTERLY WINDS. MAINLY
     CLOUDY. LOCALISED MIST.=

    ===================================================================
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
    Traditional Chinese Simplified Chinese

    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 26/Feb/2017 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     13.8 C
Minimum Air Temperature                     10.7 C
Grass Minimum Temperature                   12.5 C
Relative Humidity                        75 - 95 Percent
Rainfall                                     0.7 mm 
Total rainfall since 1st January            26.3 mm
Against an average of                       73.9 mm

Other Stations                Min                  Max
King's Park                   9.7 C               13.3 C
Wong Chuk Hang               10.5 C               14.0 C
Ta Kwu Ling                   8.3 C               11.9 C
Lau Fau Shan                  8.6 C               11.2 C
Tai Po                        8.6 C               11.9 C
Sha Tin                       8.9 C               12.3 C
Tuen Mun                      9.2 C               11.7 C
Tseung Kwan O                 9.8 C               13.3 C
Sai Kung                      9.5 C               12.8 C
Cheung Chau                   9.3 C               12.1 C
Chek Lap Kok                  9.6 C               12.9 C
Tsing Yi                      9.6 C               13.7 C
Shek Kong                     8.7 C               12.3 C
Tsuen Wan Ho Koon             8.0 C               11.7 C
Tsuen Wan Shing Mun Valley    9.5 C               13.1 C
Hong Kong Park               10.3 C               14.1 C
Shau Kei Wan                  9.7 C               13.5 C
Kowloon City                  9.3 C               12.8 C
Happy Valley                 10.6 C               14.7 C
Wong Tai Sin                  9.4 C               13.2 C
Stanley                      11.0 C               14.2 C
Kwun Tong                     9.9 C               14.1 C
Sham Shui Po                  9.9 C               13.0 C
Kai Tak Runway Park          10.1 C               14.3 C
Yuen Long Park                8.7 C               11.9 C
Tai Mei Tuk                9.0 C               11.8 C

Duration of sunshine (King's Park):              0 H
The mean UV index recorded at King's Park yesterday was 0.8,
the UV intensity was Low.
The maximum UV index for yesterday was 2.
 

Yesterday's (25 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                         0.13
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 25 Feb
     2003copy right image | Important notices | Privacy policy Last revision date: <26 Feb 2017> 

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