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

Local Weather Forecast | Regional Temperature Forecast in HK
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Weather Information for South China Coastal Waters

Bulletin issued at 23:02 HKT 21/Nov/2016

At 11 p.m. at the Hong Kong Observatory the air temperature was 24 degrees Celsius and the relative humidity 85 per cent.

The air temperatures at other places were:

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


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


Climatological Information for 21 Nov

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

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

Bulletin updated at 23:15 HKT 21/Nov/2016

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

An easterly airstream continued to affect the coast of Guangdong today. Besides, a broad band of clouds brought rainy weather to the northern part of the South China Sea and Guangdong. Locally, it was mainly cloudy with a few rain patches. There were sunny intervals during the day. A cold front is expected to reach the south China coast later tomorrow. Temperatures will fall significantly on Wednesday.

Weather forecast for Hong Kong (Tuesday, 22 Nov 2016)

Cloudy with a few rain patches. Temperatures will linger around 25 degrees at first. Moderate easterly winds. Winds will strengthen and rain will become more frequent 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 tomorrow, 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 23:30 HKT 21/Nov/2016

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 11:30 p.m. on 21 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 on Tuesday.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East force 4 to 5, occasionally force 6.
    Occasional 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 force 5
      Visibility 17 Kilometres

    Shantou Wind east force 1
      Visibility 15 Kilometres in showers

    Dongsha Wind northeast force 4
      Visibility 10 Kilometres

    Huangmaozhou Wind east-northeast force 6

    Macau Wind east force 3
      Visibility 10 Kilometres

    Xisha Wind east-southeast force 2
      Visibility 30 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 17:30 HKT 21/NOV/2016
    (Next update at 01:30 HKT 22/NOV/2016)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL
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 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  090/10-15
       OFFSHORE:  090/15-20                            27-24
   B.   2000 FT:  100/15-20                            20
   C.   5000 FT:  140/10                               17
   D.  10000 FT:  220/15                               8
   E.  18000 FT:  250/30                               MS6
   F.  24000 FT:  260/35                               MS16
   G.  30000 FT:  270/55                               MS30
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY CLOUDY WITH ONE OR TWO RAIN PATCHES.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT SCT 2500 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
   N. SEA STATE     : 2.0-2.5 M     SEA TEMPERATURE    : 25 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EASTERLY WINDS, FRESH OFFSHORE.  MAINLY
     CLOUDY WITH A FEW RAIN PATCHES.=

    ===================================================================
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 22:00 HKT on 21 Nov 16

    VHHK SIGMET 4 VALID 211400/211800 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N1830 E11530 - N1642 E11400 - N1918 E11136 - N2142 E11300 - N2142 E11436 - N1830 E11530 TOP FL450 MOV N 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 21/Nov/2016 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     26.8 C
Minimum Air Temperature                     25.0 C
Grass Minimum Temperature                   24.1 C
Relative Humidity                        72 - 83 Percent
Rainfall                                      Trace 
Total rainfall since 1st January          2898.5 mm
Against an average of                     2361.0 mm

Other Stations                Min                  Max
King's Park                  24.4 C               26.8 C
Wong Chuk Hang               24.4 C               28.3 C
Ta Kwu Ling                  23.4 C               28.7 C
Lau Fau Shan                 23.6 C               30.2 C
Tai Po                       24.2 C               26.3 C
Sha Tin                      23.7 C               28.1 C
Tuen Mun                     24.2 C               30.6 C
Tseung Kwan O                23.2 C               27.3 C
Sai Kung                     24.0 C               26.5 C
Cheung Chau                  24.3 C               27.7 C
Chek Lap Kok                 25.7 C               30.6 C
Tsing Yi                     25.3 C               27.7 C
Shek Kong                    25.1 C               28.3 C
Tsuen Wan Ho Koon            23.2 C               27.4 C
Tsuen Wan Shing Mun Valley   24.7 C               28.9 C
Hong Kong Park               24.8 C               26.6 C
Shau Kei Wan                 24.2 C               25.8 C
Kowloon City                 24.3 C               28.8 C
Happy Valley                 25.2 C               28.6 C
Wong Tai Sin                 24.0 C               28.8 C
Stanley                      24.6 C               26.7 C
Kwun Tong                    24.4 C               26.8 C
Sham Shui Po                 25.0 C               28.4 C
Kai Tak Runway Park          25.2 C               27.3 C
Yuen Long Park               23.0 C               29.9 C

Duration of sunshine (King's Park):              2.0 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 4.
Sea surface temperature (Waglan Island):        25.8 C 

Yesterday's (20 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 20 Nov
     2003copy right image | Important notices | Privacy policy Last revision date: <21 Nov 2016> 

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