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Bulletin issued at 13:02 HKT 22/Nov/2016

At 1 p.m. at the Hong Kong Observatory the air temperature was 23 degrees Celsius and the relative humidity 96 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 23 degrees;
Lau Fau Shan 23 degrees;
Tai Po 23 degrees;
Sha Tin 23 degrees;
Tuen Mun 23 degrees;
Tseung Kwan O 23 degrees;
Sai Kung 23 degrees;
Cheung Chau 22 degrees;
Chek Lap Kok 25 degrees;
Tsing Yi 24 degrees;
Shek Kong 23 degrees;
Tsuen Wan Ho Koon 23 degrees;
Tsuen Wan Shing Mun Valley 23 degrees;
Hong Kong Park 23 degrees;
Shau Kei Wan 22 degrees;
Kowloon City 23 degrees;
Happy Valley 24 degrees;
Wong Tai Sin 24 degrees;
Stanley 23 degrees;
Kwun Tong 24 degrees;
Sham Shui Po 24 degrees;
Kai Tak Runway Park 24 degrees;
Yuen Long Park 24 degrees.

Between 11:45 a.m. and 12:45 p.m., the rainfall recorded in various regions were:

North District 0 to 4 mm;
Sha Tin 0 to 3 mm;
Sai Kung 0 to 2 mm;
Tai Po 0 to 2 mm;
Tuen Mun 0 to 2 mm;
Eastern District 0 to 1 mm.


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


Climatological Information for 22 Nov

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 13:30 HKT 22/Nov/2016

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

A band of clouds is bringing rainy weather to Guangdong. The easterly airstream now affecting the coastal areas will strengthen tonight. Meanwhile, the cold air over central China continues to extend southwards. Winds over the coast of Guangdong will turn north tomorrow with temperatures falling significantly.

Weather forecast for this afternoon and tonight

Cloudy to overcast with occasional rain. Moderate to fresh easterly winds, strengthening tonight.

Outlook : Occasional rain tomorrow with temperatures falling significantly during the day. The minimum temperature on Thursday morning will be around 14 degrees in the urban areas, and two to three degrees lower in the New Territories. Remaining cool in the latter part of this week.


(The above forecast period is valid up to 23:59 HKT today, 22/11/2016; 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 22/Nov/2016

GALE WARNING AREAS: KWANGTUNG AND TAIWAN STRAIT.

GENERAL SITUATION AT 212100 UTC:
COLD FRONT 28N 110E 29N 122E S 20KT.

MARINE FORECAST FOR 24 HOURS FROM 220100 UTC:

HONG KONG= E 5-6. DOWN TO 4000 M IN RAIN. SEA 2-3 M. TEMP 23-16 C. =
KWANGTUNG= E TO NE 5-6, 7-8 LATER. DOWN TO 4000 M IN RAIN. SEA 2-3 M, 4-6 M LATER. =
TAIWAN STRAIT= NE 6-7, UP TO 8 LATER. DOWN TO 4000 M IN RAIN. SEA 3-4 M, UP TO 6 M LATER. SWELL NE 2 M. =
BASHI= E TO NE 5-6, UP TO 7 LATER. RAIN PATCHES. SEA 2-3 M, UP TO 4 M LATER. SWELL E TO NE 2 M. =
PRATAS= E TO NE 5-6, UP TO 7 LATER. ISOL SHOWERS AND TS. SEA 2-3 M, UP TO 4 M LATER. =
BALINTANG= E TO NE 5-6. RAIN PATCHES. SEA 2-3 M. =
SCARBOROUGH= E TO NE 4-5, OCNL 6. ISOL SHOWERS. SEA 2 M. =
PARACEL= E TO SE 4-5, UP TO 6 IN N LATER. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2 M, UP TO 3 M LATER. =
TONKIN= E 4-5, N TO NE 6-7 LATER. RAIN PATCHES. SEA 2 M, 3-4 M LATER. =
DANANG= E TO SE 4-5. RAIN PATCHES. 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 12:30 HKT 22/Nov/2016

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 12:30 p.m. on 22 November 2016

    Warnings:
    Gale force winds in Nan'ao and Shanwei. Strong winds in Hong Kong adjacent waters, south of Hong Kong and Shangchuan Dao.

    Weather Situation:
    An easterly airstream is affecting the south China coastal waters. The northeast monsoon associated with a cold front will affect south China coastal waters later tomorrow.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East force 5 to 6.
    Occasional rain.
    Moderate to rough seas.

    Nan'ao and Shanwei:
    East to northeast force 6 to 7, up to force 8 later.
    Rough to very rough seas.

    South of Hong Kong and Shangchuan Dao:
    East to northeast force 5 to 6, up to force 7 later.
    Isolated showers and thunderstorms.
    Rough seas.

    Outlook for the next 48 hours
    North to northeasterly winds of force 7 to 8.

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

    Waglan Island Wind northeast force 5
      Visibility 21 Kilometres

    Shantou Wind east-southeast force 1
      Visibility 15 Kilometres in showers

    Dongsha Wind east force 3
      Visibility 10 Kilometres

    Huangmaozhou Wind east-northeast force 5

    Macau Wind north-northeast force 2
      Visibility 1800 Metres in rain

    Xisha Wind southeast force 2
      Visibility 27 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 22/NOV/2016
    (Next update at 17:30 HKT 22/NOV/2016)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AN 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                            26-23
   B.   2000 FT:  100/15-20 OCNL 25                    20
   C.   5000 FT:  100/15-20                            18
   D.  10000 FT:  180/10                               9
   E.  18000 FT:  220/20                               MS5
   F.  24000 FT:  240/35                               MS14
   G.  30000 FT:  270/55                               MS29
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      CLOUDY WITH RAIN.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1000 FT SCT 2000 FT BKN 5000 FT
   K. VISIBILITY    : 7 KM. TEMPO 3000 M IN RAIN.
   L. 0 DEG. C LEVEL: 15500 FT      10 DEG. C LEVEL(S) : 9600 FT
   M. TURBULENCE    : MOD TO SEV
   N. SEA STATE     : 2.0-2.5 M     SEA TEMPERATURE    : 25 DEG
IV.  FURTHER OUTLOOK: 
     FRESH TO OCCASIONAL STRONG EASTERLIES. CLOUDY
     WITH RAIN.=

    ===================================================================
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 13:32 HKT on 22 Nov 16

    VHHK SIGMET 1 VALID 220135/220535 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2030 E11242 - N2130 E11342 - N2218 E11554 - N1942 E11600 - N1924 E11300 - N2030 E11242 TOP FL450 MOV ENE 05KT NC= VHHK SIGMET 3 VALID 220535/220935 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N1918 E11248 - N2124 E11242 - N2148 E11500 - N2100 E11542 - N1954 E11530 - N1918 E11248 TOP FL420 STNR 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 22/Nov/2016 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     25.3 C
Minimum Air Temperature                     24.0 C
Grass Minimum Temperature                   23.5 C
Relative Humidity                        81 - 88 Percent
Rainfall                                     0.3 mm 
Total rainfall since 1st January          2898.8 mm
Against an average of                     2364.2 mm

Other Stations                Min                  Max
King's Park                  23.4 C               25.1 C
Wong Chuk Hang               23.3 C               26.5 C
Ta Kwu Ling                  23.7 C               28.0 C
Lau Fau Shan                 23.2 C               29.8 C
Tai Po                       23.3 C               24.9 C
Sha Tin                      23.7 C               26.5 C
Tuen Mun                     24.0 C               27.5 C
Tseung Kwan O                22.8 C               24.6 C
Sai Kung                     23.1 C               24.9 C
Cheung Chau                  23.1 C               25.6 C
Chek Lap Kok                 24.7 C               29.1 C
Tsing Yi                     23.9 C               26.8 C
Shek Kong                    24.2 C               27.9 C
Tsuen Wan Ho Koon            22.5 C               26.1 C
Tsuen Wan Shing Mun Valley   23.6 C               27.0 C
Hong Kong Park               23.4 C               25.0 C
Shau Kei Wan                 22.7 C               24.4 C
Kowloon City                 23.2 C               26.8 C
Happy Valley                 24.0 C               25.8 C
Wong Tai Sin                 23.7 C               26.9 C
Stanley                      23.2 C               24.7 C
Kwun Tong                    23.4 C               24.8 C
Sham Shui Po                 23.8 C               27.0 C
Kai Tak Runway Park          24.1 C               25.4 C
Yuen Long Park               23.8 C               29.4 C

Duration of sunshine (King's Park):              0.4 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):        25.8 C 

Yesterday's (21 Nov 2016) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.08 to
0.14 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                         0.10
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                        0.14

Note

      

    1. From readings taken at various locations in Hong Kong during
the period 1987-2015, 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 21 Nov
     2003copy right image | Important notices | Privacy policy Last revision date: <22 Nov 2016> 

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