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Bulletin issued at 12:02 HKT 02/Feb/2019

At noon at the Hong Kong Observatory the air temperature was 19 degrees Celsius and the relative humidity 76 per cent.
During the past hour the mean UV Index recorded at King's Park was 4. The intensity of UV radiation was moderate.

The air temperatures at other places were:

King's Park 20 degrees;
Wong Chuk Hang 21 degrees;
Ta Kwu Ling 21 degrees;
Lau Fau Shan 23 degrees;
Tai Po 18 degrees;
Sha Tin 19 degrees;
Tuen Mun 20 degrees;
Tseung Kwan O 18 degrees;
Sai Kung 19 degrees;
Cheung Chau 21 degrees;
Chek Lap Kok 21 degrees;
Tsing Yi 20 degrees;
Shek Kong 23 degrees;
Tsuen Wan Ho Koon 21 degrees;
Tsuen Wan Shing Mun Valley 21 degrees;
Hong Kong Park 19 degrees;
Shau Kei Wan 18 degrees;
Kowloon City 20 degrees;
Happy Valley 20 degrees;
Wong Tai Sin 20 degrees;
Stanley 18 degrees;
Kwun Tong 19 degrees;
Sham Shui Po 21 degrees;
Kai Tak Runway Park 19 degrees;
Yuen Long Park 23 degrees;
Tai Mei Tuk 22 degrees.

A trace of rainfall was recorded at the Hong Kong Observatory between midnight last night and midday today.


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


Climatological Information for 2 Feb

Regional Weather in Hong Kong

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Hong Kong Climatology


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Bulletin updated at 11:45 HKT 02/Feb/2019

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

The northeast monsoon is affecting the south China coast.

Weather forecast for this afternoon and tonight

Mainly cloudy. Sunny intervals in the afternoon. Moderate easterly winds, fresh offshore at first.

Outlook : Warm with coastal fog patches and occasional sunshine in the next few days. However, it will be windier on Lunar New Year's Eve and Lunar New Year's Day.


(The above forecast period is valid up to 23:59 HKT today, 02/02/2019; 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 09:00 HKT 02/Feb/2019

GALE WARNING AREAS: TAIWAN STRAIT, BASHI AND BALINTANG.

GENERAL SITUATION AT 012100 UTC:
AN EASTERLY AIRSTREAM IS GENERALLY AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 020100 UTC:

HONG KONG= E TO NE 4-5, OCNL 6. LGT RAIN PATCHES. SEA 2 M. SWELL E TO NE 2 M. TEMP 20-19 C. =
KWANGTUNG= E 5, 6-7 IN E AT FIRST. LGT RAIN PATCHES. SEA 3-4 M, UP TO 6 M IN E. SWELL E TO NE 2-3 M. =
TAIWAN STRAIT= E TO NE 5-6, 7-8 AT FIRST. 4000 M IN RAIN PATCHES. SEA 3-4 M, UP TO 5 M AT FIRST. SWELL NE 3 M. =
BASHI= E 7-8. LGT RAIN PATCHES. SEA 4-6 M. SWELL E TO NE 3 M. =
PRATAS= E 5-6, UP TO 7 IN E AT FIRST. FINE. SEA 3-4 M. SWELL E TO NE 3 M. =
BALINTANG= E 7-8. LGT RAIN PATCHES. SEA 4-6 M. SWELL E TO NE 3 M. =
SCARBOROUGH= E TO NE 4-5, 6 IN N. FINE. SEA 2-3 M. SWELL NE 2 M. =
PARACEL= E 4, OCNL 5 AT FIRST. FINE. SEA UP TO 2 M. SWELL E TO NE UP TO 2 M. =
TONKIN= E TO SE 4, OCNL 5 AT FIRST. 4000 M IN MIST OR LGT RAIN PATCHES. SEA UP TO 2 M. =
DANANG= E TO SE 4, OCNL 5 AT FIRST. 4000 M IN MIST OR LGT RAIN PATCHES. SEA UP TO 2 M. SWELL E TO NE 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 02/Feb/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 12:30 p.m. on 02 February 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:
    East to northeast force 4 to 5, occasionally force 6 at first.
    Moderate to rough seas.

    Nan'ao:
    East to northeast force 5 to 6, force 7 to 8 at first.
    Rough to very rough seas.

    Shanwei and South of Hong Kong:
    East to northeast force 5 to 6, up to force 7 at first.
    Rough seas.

    Shangchuan Dao:
    East force 4 to 5, up to force 6 at first.
    Moderate to rough seas.

    Outlook for the next 48 hours
    East to southeasterly winds of force 4 to 5. Fog patches.

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

    Waglan Island Wind northeast force 4
      Visibility 9 Kilometres

    Shantou Wind east force 1
      Visibility 19 Kilometres

    Huangmaozhou Wind east force 6

    Macau Wind east force 3
      Visibility 9 Kilometres

    Xisha Wind east force 2
      Visibility 28 Kilometres

  • Explanation of Seas or Sea Waves
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    • WEATHER FORECAST FOR LOCAL AVIATION
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    Weather Forecast for Local Aviation

    Bulletin issued at 12:30 HKT 02/FEB/2019
    (Next update at 17:30 HKT 02/FEB/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 1300 TO 2300 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  090/10-15
       OFFSHORE:  090/15-20                            22-19
   B.   2000 FT:  120/15-20, OCNL 25                   15
   C.   5000 FT:  180/20                               12
   D.  10000 FT:  260/20                               11
   E.  18000 FT:  240/25                               MS3
   F.  24000 FT:  260/40                               MS17
   G.  30000 FT:  250/60                               MS29
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      SUNNY INERVALS, MAINLY CLOUDY TONIGHT. ONE OR
      TWO RAIN PATCHES.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT  SCT 2500 FT  BKN 8000 FT.
   K. VISIBILITY    : 8 KM. TEMPO 4000 M IN RAIN.
   L. 0 DEG. C LEVEL: 16500 FT      10 DEG. C LEVEL(S) : 6000, 8000, 10800 FT
   M. TURBULENCE    : MOD TO SEV NEAR HILLS. MOD OFFSHORE.
   N. SEA STATE     : 2.0-2.5 M     SEA TEMPERATURE    : 19 DEG
IV.  FURTHER OUTLOOK: 
     LIGHT TO MODERATE EASTERLY WINDS. MAINLY CLOUDY.
     LOCALISED MIST.=

    ===================================================================
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.

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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.

    There is no Significant Weather Information (SIGMET)

    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 02/Feb/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     22.0 C
Minimum Air Temperature                     17.6 C
Grass Minimum Temperature                   16.2 C
Relative Humidity                        63 - 79 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January             4.7 mm
Against an average of                       25.0 mm

Other Stations                Min                  Max
King's Park                  16.5 C               21.4 C
Wong Chuk Hang               16.9 C               22.0 C
Ta Kwu Ling                  15.6 C               20.7 C
Lau Fau Shan                 15.4 C               20.8 C
Tai Po                       16.3 C               20.8 C
Sha Tin                      16.4 C               21.5 C
Tuen Mun                     16.8 C               21.6 C
Tseung Kwan O                15.8 C               19.9 C
Sai Kung                     16.0 C               21.4 C
Cheung Chau                  16.7 C               20.6 C
Chek Lap Kok                 17.1 C               21.6 C
Tsing Yi                     17.4 C               22.1 C
Shek Kong                    16.0 C               20.9 C
Tsuen Wan Ho Koon            15.7 C               20.1 C
Tsuen Wan Shing Mun Valley   16.7 C               19.2 C
Hong Kong Park               17.1 C               21.7 C
Shau Kei Wan                 16.1 C               21.3 C
Kowloon City                 16.3 C               21.2 C
Happy Valley                 17.0 C               21.2 C
Wong Tai Sin                 17.0 C               21.5 C
Stanley                      16.5 C               21.2 C
Kwun Tong                    16.1 C               21.3 C
Sham Shui Po                 16.9 C               21.3 C
Kai Tak Runway Park          17.0 C               21.8 C
Yuen Long Park               16.1 C               21.0 C
Tai Mei Tuk               15.7 C               20.0 C

Duration of sunshine (King's Park):              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.
 

Yesterday's (01 Feb 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                         0.12
Sha Tau Kok                         0.10
Kwun Tong                           0.13
Sai Wan Ho                          0.10
King's Park                         0.15
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 01 Feb
     2003copy right image | Important notices | Privacy policy Last revision date: <02 Feb 2019> 

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