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Bulletin issued at 10:02 HKT 04/Nov/2016

At 10 a.m. at the Hong Kong Observatory the air temperature was 23 degrees Celsius and the relative humidity 66 per cent.
During the past hour the mean UV Index recorded at King's Park was 3. The intensity of UV radiation was moderate.

The air temperatures at other places were:

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


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


Climatological Information for 4 Nov

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


Local Weather Forecast
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Bulletin updated at 09:45 HKT 04/Nov/2016

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

The northeast monsoon is bringing generally fine weather to the coast of Guangdong. Locally, the minimum temperature recorded at the Observatory this morning was 19.6 degrees, the lowest so far this year since autumn.

At 10 a.m., Tropical Storm Meari was centred about 600 kilometres north of Yap. It is forecast to move northeast at about 12 kilometres per hour across the western North Pacific to the east of the Philippines.

Weather forecast for today

Fine and dry. Moderate northeasterly winds.

Outlook : Mainly fine with temperatures rising progressively in the next couple of days. Appreciably cooler midweek next week.


(The above forecast period is valid up to 23:59 HKT today, 04/11/2016; Regular update at : around 45 minutes past each hour, 16:15 HKT and 23:15 HKT)

Information on Tropical Cyclones

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MARINE FORECAST
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Marine Forecast

Weather Information for the Marine Community

Bulletin issued at 09:00 HKT 04/Nov/2016

N0 WARNING.

GENERAL SITUATION AT 032100 UTC:
THE NORTHEAST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 040100 UTC:

HONG KONG= NE 4-5. FINE. SEA UP TO 2 M. SWELL NE 2 M. TEMP 26-22 C. =
KWANGTUNG= NE 4-5, OCNL 6. FINE. SEA UP TO 3 M. SWELL NE 2-3 M. =
TAIWAN STRAIT= NE 5-6, UP TO 7 AT FIRST. FINE. SEA 2-3 M, UP TO 4 M AT FIRST. SWELL NE 2-3 M. =
BASHI= NE 5-6, UP TO 7 AT FIRST. FINE. SEA 2-3 M, UP TO 4 M AT FIRST. SWELL NE 2-3 M. =
PRATAS= NE 5-6, OCNL 7 AT FIRST. CLD. SEA 2-3 M, UP TO 4 M AT FIRST. SWELL NE 2-3 M. =
BALINTANG= NE 5-6, UP TO 7 AT FIRST. CLD. SEA 2-3 M, UP TO 4 M AT FIRST. SWELL NE 2-3 M. =
SCARBOROUGH= NE 5-6, UP TO 7 AT FIRST. ISOL SHOWERS AND TS. SEA 2-3 M, UP TO 4 M AT FIRST. SWELL NE 2-3 M. =
PARACEL= NE 5-6, UP TO 7 AT FIRST. ISOL SHOWERS AND TS IN S. SEA 2-3 M, UP TO 4 M AT FIRST. SWELL NE 2-3 M. =
TONKIN= NE 4-5. FINE. SEA UP TO 2 M. SWELL NE 2 M. =
DANANG= NE 4-5, OCNL 6. ISOL SHOWERS AND TS. SEA UP TO 3 M. SWELL NE 2-3 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 09:30 HKT 04/Nov/2016

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 9:30 a.m. on 04 November 2016

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

    Weather Situation:
    The northeast monsoon is affecting the south China coastal waters.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    Northeast force 4 to 5.
    Moderate seas.

    Nan'ao, Shanwei, South of Hong Kong and Shangchuan Dao:
    Northeast force 4 to 5, occasionally force 6.
    Moderate to rough seas.

    Outlook for the next 48 hours
    East to northeasterly winds of force 4 to 5, occasionally force 6.

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

    Waglan Island Wind north-northeast force 3
      Visibility 16 Kilometres

    Shantou Wind east-northeast force 1
      Visibility 22 Kilometres

    Dongsha Wind northeast force 3
      Visibility 10 Kilometres

    Huangmaozhou Wind east force 2

    Macau Wind north force 2
      Visibility 10 Kilometres

    Xisha Wind northeast force 3
      Visibility 14 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 09:30 HKT 04/NOV/2016
    (Next update at 17:30 HKT 04/NOV/2016)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE NORTHEAST MONSOON IS BRINGING GENERALLY FINE
     WEATHER TO THE COAST OF GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  040/10
       OFFSHORE:  040/10-15                            22-27
   B.   2000 FT:  360/10                               16
   C.   5000 FT:  330/10                               16
   D.  10000 FT:  340/15                               9
   E.  18000 FT:  300/25                               MS5
   F.  24000 FT:  280/35                               MS14
   G.  30000 FT:  300/35                               MS29
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      FINE AND DRY.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 4000 FT
   K. VISIBILITY    : 9 KM.
   L. 0 DEG. C LEVEL: 17500 FT      10 DEG. C LEVEL(S) : 10200 FT
   M. TURBULENCE    : MOD OFFSHORE AND NEAR HILLS
   N. SEA STATE     : 1.0-2.0 M     SEA TEMPERATURE    : 26 DEG
IV.  FURTHER OUTLOOK: 
     LIGHT TO MODERATE NORTHEASTERLY WINDS.  MAINLY
     FINE.=

    ===================================================================
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 10:10 HKT on 02 Nov 16

    VHHK SIGMET Z99 VALID 020210/020220 VHHH- VHHK HONG KONG FIR THIS IS A TEST SIGMET, PLEASE DISREGARD. TEST TC ADVISORY NUMBER 01 RECEIVED FROM TOKYO TCAC AT 020200Z=

    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 04/Nov/2016 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     24.8 C
Minimum Air Temperature                     20.1 C
Grass Minimum Temperature                   20.1 C
Relative Humidity                        55 - 74 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January          2888.9 mm
Against an average of                     2338.6 mm

Other Stations                Min                  Max
King's Park                  19.3 C               24.6 C
Wong Chuk Hang               19.6 C               24.6 C
Ta Kwu Ling                  15.6 C               24.8 C
Lau Fau Shan                 18.3 C               24.3 C
Tai Po                       18.1 C               23.5 C
Sha Tin                      19.4 C               24.0 C
Tuen Mun                     19.4 C               25.7 C
Tseung Kwan O                17.7 C               25.4 C
Sai Kung                     19.2 C               23.1 C
Cheung Chau                  18.8 C               25.2 C
Chek Lap Kok                 20.0 C               26.1 C
Tsing Yi                     19.4 C               25.1 C
Shek Kong                    17.3 C               25.4 C
Tsuen Wan Ho Koon            17.6 C               24.9 C
Tsuen Wan Shing Mun Valley   18.2 C               25.1 C
Hong Kong Park               20.3 C               24.3 C
Shau Kei Wan                 19.2 C               24.5 C
Kowloon City                 18.9 C               24.3 C
Happy Valley                 20.5 C               25.4 C
Wong Tai Sin                 19.4 C               26.1 C
Stanley                      20.2 C               24.9 C
Kwun Tong                    19.2 C               24.2 C
Sham Shui Po                 19.6 C               25.8 C
Kai Tak Runway Park          19.6 C               24.6 C
Yuen Long Park               19.3 C               25.9 C

Duration of sunshine (King's Park):              7.5 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):        27.1 C 

Yesterday's (03 Nov 2016) 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                         0.10
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 1987-2015, 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 03 Nov
     2003copy right image | Important notices | Privacy policy Last revision date: <04 Nov 2016> 

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