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Bulletin issued at 03:02 HKT 23/Feb/2019

At 3 a.m. at the Hong Kong Observatory the air temperature was 20 degrees Celsius and the relative humidity 78 per cent.

The air temperatures at other places were:

King's Park 19 degrees;
Wong Chuk Hang 20 degrees;
Ta Kwu Ling 18 degrees;
Lau Fau Shan 17 degrees;
Tai Po 18 degrees;
Sha Tin 18 degrees;
Tuen Mun 19 degrees;
Tseung Kwan O 19 degrees;
Sai Kung 19 degrees;
Cheung Chau 19 degrees;
Chek Lap Kok 20 degrees;
Tsing Yi 20 degrees;
Shek Kong 19 degrees;
Tsuen Wan Ho Koon 19 degrees;
Tsuen Wan Shing Mun Valley 19 degrees;
Hong Kong Park 20 degrees;
Shau Kei Wan 19 degrees;
Kowloon City 19 degrees;
Happy Valley 20 degrees;
Wong Tai Sin 20 degrees;
Stanley 19 degrees;
Kwun Tong 19 degrees;
Sham Shui Po 19 degrees;
Kai Tak Runway Park 20 degrees;
Yuen Long Park 18 degrees;
Tai Mei Tuk 18 degrees.


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


Climatological Information for 23 Feb

Regional Weather in Hong Kong

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Hong Kong Climatology


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Bulletin updated at 02:45 HKT 23/Feb/2019

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

The northeast monsoon now affecting the coast of Guangdong is strengthening gradually.

Weather forecast for today

Cloudy with a few showers. There will be more showers later. Cool in the morning and at night. Temperatures will range between 17 and 21 degrees. Moderate to fresh east to northeasterly winds, occasionally strong offshore.

Outlook : Cool with a few rain patches on Sunday. The weather will improve gradually and temperatures will rise in the following couple of days.


(The above forecast period is valid up to 23:59 HKT today, 23/02/2019; 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 21:00 HKT 22/Feb/2019

GALE WARNING AREA: TAIWAN STRAIT.

GENERAL SITUATION AT 220900 UTC:
COLD FRONT 19N 111E 19N 113E 20N 115E S 5KT.

MARINE FORECAST FOR 24 HOURS FROM 221300 UTC:

HONG KONG= E TO NE 5-6, 7 LATER. A FEW SHOWERS TOMORROW. SEA 2-3 M, 4 M LATER. SWELL NE UP TO 2 M. TEMP 17-21 C. =
KWANGTUNG= E TO NE 6-7. ISOL SHOWERS. SEA 3-4 M. SWELL NE UP TO 2 M. =
TAIWAN STRAIT= NE 7-8. ISOL SHOWERS. SEA 4-6 M. SWELL N TO NE 2 M, 3 M LATER. =
BASHI= NE 6-7. ISOL SHOWERS LATER. SEA 3-4 M. SWELL N TO NE 2 M, 3 M LATER. =
PRATAS= E TO NE 5-6, OCNL 7. ISOL SHOWERS LATER. SEA UP TO 4 M. SWELL NE 2 M. =
BALINTANG= NE 5-6, UP TO 7 LATER. FINE. SEA 2-3 M, UP TO 4 M LATER. SWELL NE 2 M. =
SCARBOROUGH= E TO NE 4-5, OCNL 6. FINE. SEA UP TO 3 M. SWELL NE UP TO 2 M. =
PARACEL= E 4-5, OCNL 6. FINE. SEA UP TO 3 M. SWELL NE UP TO 2 M. =
TONKIN= E TO NE 5-6. DOWN TO 4000 M IN MIST OR RAIN PATCHES. SEA 2-3 M. =
DANANG= E 4-5, OCNL 6. DOWN TO 4000 M IN MIST OR RAIN PATCHES. SEA UP TO 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
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    Bulletin issued at 03:30 HKT 23/Feb/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 3:30 a.m. on 23 February 2019

    Warnings:
    Strong winds in all areas.

    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 5 to 6, occasionally force 7.
    A few showers.
    Moderate to rough seas.

    Nan'ao and Shanwei:
    East to northeast force 6 to 7.
    Rough seas.

    South of Hong Kong and Shangchuan Dao:
    East to northeast force 5 to 6, occasionally force 7.
    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 northeast force 4
      Visibility 23 Kilometres

    Shantou Wind east-northeast force 3
      Visibility 30 Kilometres

    Dongsha Wind north-northeast force 3
      Visibility 10 Kilometres

    Huangmaozhou Wind east force 7

    Macau Wind northeast force 2
      Visibility 14 Kilometres

    Xisha Wind southeast force 2
      Visibility 30 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 01:30 HKT 23/FEB/2019
    (Next update at 9:00-9:30 HKT 23/FEB/2019)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE NORTHEAST MONSOON 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:  060/10-15
       OFFSHORE:  080/15-20, OCNL 25 LATER             16-20
   B.   2000 FT:  100/15-20, OCNL 25 LATER             15
   C.   5000 FT:  180/20                               13
   D.  10000 FT:  460/25                               5
   E.  18000 FT:  260/40                               MS8
   F.  24000 FT:  280/60                               MS21
   G.  30000 FT:  280/85                               MS31
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      3000 - 3300 FT.
   I. WEATHER       : 
      MAINLY CLOUDY WITH A FEW SHOWERS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT  SCT 2500 FT  BKN 6000 FT.
   K. VISIBILITY    : 8 KM. TEMPO 3000 M IN SHOWERS.
   L. 0 DEG. C LEVEL: 14500 FT      10 DEG. C LEVEL(S) : 8000 FT
   M. TURBULENCE    : MOD TO SEV OFFSHORE AND NEAR HILLS .
   N. SEA STATE     : 2.0-3.0 M     SEA TEMPERATURE    : 20 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH EAST TO NORTHEASTERLY WINDS,
     STRONG OFFSHORE. CLOUDY WITH OCCASIONAL SHOWERS.
     THERE WILL ALSO BE A FEW ISOLATED THUNDERSTORMS.=

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

    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 23/Feb/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     24.3 C
Minimum Air Temperature                     18.4 C
Grass Minimum Temperature                   18.3 C
Relative Humidity                        68 - 93 Percent
Rainfall                                     1.6 mm 
Total rainfall since 1st January            57.7 mm
Against an average of                       67.0 mm

Other Stations                Min                  Max
King's Park                  18.3 C               25.2 C
Wong Chuk Hang               18.1 C               23.4 C
Ta Kwu Ling                  17.2 C               24.3 C
Lau Fau Shan                 16.6 C               23.2 C
Tai Po                       17.3 C               22.3 C
Sha Tin                      17.9 C               23.5 C
Tuen Mun                     17.1 C               24.3 C
Tseung Kwan O                18.4 C               24.7 C
Sai Kung                     18.8 C               22.3 C
Cheung Chau                  16.7 C               24.7 C
Chek Lap Kok                 16.5 C               22.3 C
Tsing Yi                     18.1 C               24.8 C
Shek Kong                    17.5 C               26.2 C
Tsuen Wan Ho Koon            17.1 C               24.7 C
Tsuen Wan Shing Mun Valley   18.4 C               25.7 C
Hong Kong Park               18.1 C               24.3 C
Shau Kei Wan                 18.5 C               23.9 C
Kowloon City                 18.4 C               25.7 C
Happy Valley                 18.6 C               25.7 C
Wong Tai Sin                 18.8 C               25.9 C
Stanley                      18.8 C               23.2 C
Kwun Tong                    18.4 C               25.1 C
Sham Shui Po                 18.5 C               25.1 C
Kai Tak Runway Park          18.6 C               24.7 C
Yuen Long Park               17.2 C               25.1 C
Tai Mei Tuk               18.0 C               25.4 C

Duration of sunshine (King's Park):              4.6 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 8.
 

Yesterday's (22 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 22 Feb
     2003copy right image | Important notices | Privacy policy Last revision date: <23 Feb 2019> 

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