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Bulletin issued at 01:02 HKT 04/Nov/2019

At 1 a.m. at the Hong Kong Observatory the air temperature was 25 degrees Celsius and the relative humidity 57 per cent.

The air temperatures at other places were:

King's Park 24 degrees;
Wong Chuk Hang 25 degrees;
Ta Kwu Ling 24 degrees;
Lau Fau Shan 24 degrees;
Tai Po 24 degrees;
Sha Tin 25 degrees;
Tuen Mun 25 degrees;
Tseung Kwan O 22 degrees;
Sai Kung 25 degrees;
Cheung Chau 23 degrees;
Chek Lap Kok 26 degrees;
Tsing Yi 25 degrees;
Shek Kong 23 degrees;
Tsuen Wan Ho Koon 22 degrees;
Tsuen Wan Shing Mun Valley 23 degrees;
Hong Kong Park 24 degrees;
Shau Kei Wan 24 degrees;
Kowloon City 24 degrees;
Happy Valley 25 degrees;
Wong Tai Sin 24 degrees;
Stanley 25 degrees;
Kwun Tong 24 degrees;
Sham Shui Po 25 degrees;
Kai Tak Runway Park 25 degrees;
Yuen Long Park 25 degrees;
Tai Mei Tuk 24 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

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Bulletin updated at 00:45 HKT 04/Nov/2019

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

A dry northeast monsoon brought generally fine weather to southeastern China yesterday. Locally, it was fine and dry. The relative humidity over many places fell to around 50 per cent in the afternoon. Besides, pressure over northern Guangdong rose yesterday. A replenishment of the monsoon is expected to bring slightly cooler weather to the coastal areas this morning.

Weather forecast for Hong Kong

Mainly fine and dry. The minimum temperature will be about 23 degrees in the urban areas in the morning, and a couple of degrees lower in the New Territories. The maximum temperature will be around 29 degrees. Moderate north to northeasterly winds, occasionally fresh offshore.

Outlook : Mainly fine, windy and dry in the following few days with slightly cooler mornings.


(The above forecast period is valid up to 23:59 HKT today, 04/11/2019; Regular update at : around 45 minutes past each hour, 16:15 HKT and 23:15 HKT)

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MARINE FORECAST
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Marine Forecast

Weather Information for the Marine Community

Bulletin issued at 21:45 HKT 03/Nov/2019

GALE WARNING AREAS: TAIWAN STRAIT AND PARACEL.

GENERAL SITUATION AT 030900 UTC:
THE NORTHEAST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 031345 UTC:

HONG KONG= N TO NE 5-6. FINE. SEA 2-3 M. SWELL NE 2 M. TEMP 22-29 C. =
KWANGTUNG= NE 5-6, OCNL 7 IN E. ISOL SHOWERS. SEA 2-3 M, UP TO 4 M IN E. SWELL NE 2-3 M. =
TAIWAN STRAIT= NE 6-7, OCNL 8. RAIN PATCHES. SEA UP TO 6 M. SWELL NE 3 M. =
BASHI= E TO NE 5-6, OCNL 7 LATER. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-3 M, UP TO 4 M LATER. SWELL NE 2-3 M. =
PRATAS= NE 5-6, OCNL 7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 4 M. SWELL NE 2-3 M. =
BALINTANG= E TO NE 5-6, OCNL 7 LATER. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-3 M, UP TO 4 M LATER. SWELL NE 2-3 M. =
SCARBOROUGH= E TO NE 5-6. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL NE 2-3 M. =
PARACEL= NE 6-7, OCNL 8 LATER. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 3-4 M, UP TO 6 M LATER. SWELL NE 2 M. =
TONKIN= NE 4-5, BEC 6. ISOL SHOWERS AND TS. SEA UP TO 2 M, BEC 3 M. =
DANANG= N TO NE 5-6, BEC 7. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 2-3 M, BEC 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 23:30 HKT 03/Nov/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 11:30 p.m. on 03 November 2019

    Warnings:
    Gale force winds in Nan'ao. Strong winds in Hong Kong adjacent waters, 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:
    North to northeast force 5 to 6.
    Moderate to rough seas.

    Nan'ao:
    Northeast force 6 to 7, occasionally force 8.
    Rough to very rough seas.

    Shanwei:
    Northeast force 6 to 7.
    Rough seas.

    South of Hong Kong and Shangchuan Dao:
    Northeast force 5 to 6, occasionally force 7.
    Isolated squally showers and thunderstorms.
    Moderate to rough seas.

    Outlook for the next 48 hours
    East to northeasterly winds of force 6 to 7.

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

    Waglan Island Wind east force 4
      Visibility 22 Kilometres

    Shantou Wind east force 2
      Visibility 21 Kilometres

    Huangmaozhou Wind east force 4

    Xisha Wind northeast force 4
      Visibility 4900 Metres in rain

  • Explanation of Seas or Sea Waves
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  • Visibility Readings in Hong Kong Waters
  • Map showing forecast areas
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    • WEATHER FORECAST FOR LOCAL AVIATION
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    Weather Forecast for Local Aviation

    Bulletin issued at 01:30 HKT 04/NOV/2019
    (Next update at 9:00-9:30 HKT 04/NOV/2019)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE NORTHEAST MONSOON IS AFFECTING THE SOUTH
     CHINA COASTAL AREAS.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  020/15
       OFFSHORE:  040/15-20                            26-22
   B.   2000 FT:  020/20                               23
   C.   5000 FT:  050/15                               16
   D.  10000 FT:  060/10                               10
   E.  18000 FT:  270/10                               MS3
   F.  24000 FT:  230/20                               MS13
   G.  30000 FT:  240/35                               MS25
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY FINE.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 4000 FT
   K. VISIBILITY    : 10 KM.
   L. 0 DEG. C LEVEL: 16000 FT      10 DEG. C LEVEL(S) : 10000 FT
   M. TURBULENCE    : MOD OFFSHORE AND  NEAR HILLS
   N. SEA STATE     : 2.0-2.5 M     SEA TEMPERATURE    : 25 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE NORTH TO NORTHEASTERLY
     WINDS,OCCASIONALLY FRESH OFFSHORE. 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 00:46 HKT on 04 Nov 19

    VHHK SIGMET 6 VALID 031645/032045 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2017 E11655 - N1642 E11400 - N1928 E11132 - N2017 E11655 TOP FL470 MOV W 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 04/Nov/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     28.8 C
Minimum Air Temperature                     23.8 C
Grass Minimum Temperature                        C
Relative Humidity                        56 - 86 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January          2382.7 mm
Against an average of                     2338.6 mm

Other Stations                Min                  Max
King's Park                  22.8 C               28.9 C
Wong Chuk Hang               21.5 C               29.4 C
Ta Kwu Ling                  19.3 C               31.3 C
Lau Fau Shan                 21.3 C               31.3 C
Tai Po                       21.6 C               28.6 C
Sha Tin                      21.4 C               30.1 C
Tuen Mun                     21.7 C               30.8 C
Tseung Kwan O                21.8 C               29.0 C
Sai Kung                     22.4 C               27.1 C
Cheung Chau                  21.7 C               30.2 C
Chek Lap Kok                 23.5 C               31.1 C
Tsing Yi                     21.9 C               30.7 C
Shek Kong                    20.2 C               30.8 C
Tsuen Wan Ho Koon            20.3 C               29.1 C
Tsuen Wan Shing Mun Valley   20.7 C               30.6 C
Hong Kong Park               22.7 C               29.7 C
Shau Kei Wan                 22.7 C               27.7 C
Kowloon City                 22.1 C               30.0 C
Happy Valley                 22.2 C               30.2 C
Wong Tai Sin                 21.8 C               30.5 C
Stanley                      23.7 C               28.0 C
Kwun Tong                    22.9 C               28.5 C
Sham Shui Po                 22.4 C               31.3 C
Kai Tak Runway Park          23.8 C               27.5 C
Yuen Long Park               20.3 C               32.0 C
Tai Mei Tuk               22.2 C               29.8 C

Duration of sunshine (King's Park):              9.3 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 6.
 

Yesterday's (03 Nov 2019) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.09 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                           0.09
Tap Mun                             0.09
Kat O                               0.11
Yuen Ng Fan                         0.12
Tai Mei Tuk                         0.11
Sha Tau Kok                         0.10
Kwun Tong                           0.13
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 in the
past, the hourly mean ambient gamma radiation dose rate may
vary between 0.06 and 0.3 microsievert per hour. (1
microsievert = 0.000001 sievert = 0.001 millisievert)

    2. Temporal variations are generally caused by changes in
meteorological conditions such as rainfall, wind and
barometric pressure.

    3. Spatial variations are generally caused by differences in
the radioactive content of local rock and soil.

    4. The data displayed is provisional. Only limited data
validation has been carried out.
    Climatological Information for 03 Nov
     2003copy right image | Important notices | Privacy policy Last revision date: <04 Nov 2019> 

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