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Bulletin issued at 03:02 HKT 22/Nov/2016

At 3 a.m. at the Hong Kong Observatory the air temperature was 23 degrees Celsius and the relative humidity 98 per cent.

The air temperatures at other places were:

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

Between 1:45 and 2:45 a.m., the rainfall recorded in various regions were:

Wan Chai 4 to 8 mm;
Eastern District 2 to 7 mm;
Central & Western District 1 to 6 mm;
Kwun Tong 3 to 6 mm;
Sai Kung 0 to 5 mm;
Islands District 0 to 5 mm;
Southern District 3 to 5 mm;
Yau Tsim Mong 3 to 5 mm;
Kowloon City 2 to 5 mm;
Wong Tai Sin 3 to 4 mm;
Tai Po 0 to 2 mm;
Sha Tin 0 to 2 mm;
Sham Shui Po 1 to 2 mm;
Kwai Tsing 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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Bulletin updated at 03:15 HKT 22/Nov/2016

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

A broad band of clouds is bringing rainy weather to the northern part of the South China Sea and Guangdong. Meanwhile, pressure is rising over central China. The associated cold air mass is spreading southwards gradually.

Weather forecast for today

Cloudy with rain. The maximum temperature will be around 25 degrees. Moderate easterly winds. Winds will strengthen later. Temperatures will fall to about 22 degrees at night.

Outlook : Becoming cool significantly with rain on Wednesday. The minimum temperature will fall to around 14 degrees on Thursday. 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 21:00 HKT 21/Nov/2016

GALE WARNING AREA: TAIWAN STRAIT.

GENERAL SITUATION AT 210900 UTC:
AN EASTERLY AIRSTREAM IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 211300 UTC:

HONG KONG= E 4-5, OCNL 6. RAIN PATCHES. SEA 2 M. TEMP 22-25 C. =
KWANGTUNG= E TO NE 5-6, UP TO 7 LATER. ISOL SHOWERS AND TS. SEA 2-3 M, UP TO 4 M LATER. =
TAIWAN STRAIT= NE 5-6, 7-8 LATER. RAIN PATCHES. SEA 2-3 M, 4-6 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 2 M. =
PRATAS= E TO NE 5-6, UP TO 7 LATER. RAIN PATCHES. SEA 2-3 M, UP TO 4 M LATER. SWELL E 2 M. =
BALINTANG= E TO NE 5-6. RAIN PATCHES. SEA 2-3 M. SWELL E TO NE 2 M. =
SCARBOROUGH= E TO NE 4-5, OCNL 6. ISOL SHOWERS. SEA 2 M. =
PARACEL= E TO SE 4-5, UP TO 6 LATER. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2 M, UP TO 3 M LATER. =
TONKIN= E TO NE 4-5. RAIN PATCHES. SEA UP TO 2 M. =
DANANG= E TO SE 4-5. ISOL SHOWERS AND TS. 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 03:30 HKT 22/Nov/2016

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 3:30 a.m. on 22 November 2016

    Warnings:
    Strong winds in all areas.

    Weather Situation:
    An easterly airstream is affecting the south China coastal waters. A cold front is expected to reach the south China coastal waters later today.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East force 4 to 5, occasionally force 6.
    Some rain.
    Moderate to rough seas.

    Nan'ao, Shanwei, 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
    Northeasterly winds of force 7 to 8.

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

    Waglan Island Wind east-northeast force 5
      Visibility 9 Kilometres

    Shantou Wind south force 1
      Visibility 4400 Metres in mist

    Dongsha Wind northeast force 4
      Visibility 10 Kilometres

    Huangmaozhou Wind east-northeast force 5

    Macau Wind east-northeast force 2
      Visibility 14 Kilometres

    Xisha Wind northeast force 2
      Visibility 21 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 22/NOV/2016
    (Next update at 9:00-9:30 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 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  090/10-15
       OFFSHORE:  090/15-20
                  OCNL 25 AT FIRST
                                                       25-27
   B.   2000 FT:  100/15-20
                  OCNL 25 AT FIRST
                                                       19
   C.   5000 FT:  100/15                               16
   D.  10000 FT:  220/10                               8
   E.  18000 FT:  250/25                               MS5
   F.  24000 FT:  260/35                               MS16
   G.  30000 FT:  270/55                               MS30
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      1900FT TO 4800FT
   I. WEATHER       : 
      CLOUDY WITH A FEW RAIN PATCHES.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT SCT 3000 FT
   K. VISIBILITY    : 9 KM. TEMPO 4000 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 AND RAIN
     WILL BECOME MORE FREQUENT LATER.=

    ===================================================================
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 02:00 HKT on 22 Nov 16

    VHHK SIGMET 5 VALID 211800/212200 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N1836 E11530 - N1642 E11400 - N1748 E11300 - N2106 E11300 - N2136 E11618 - N1836 E11530 TOP FL450 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 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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