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Bulletin issued at 18:02 HKT 19/Feb/2019

At 6 p.m. at the Hong Kong Observatory the air temperature was 21 degrees Celsius and the relative humidity 88 per cent.
During the past hour the mean UV Index recorded at King's Park was 0.2. The intensity of UV radiation was low.

The air temperatures at other places were:

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


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


Climatological Information for 19 Feb

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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Bulletin updated at 17:45 HKT 19/Feb/2019

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

The easterly airstream affecting the eastern coast of Guangdong is being replaced by a maritime airstream gradually.

Weather forecast for tonight and tomorrow

Mainly cloudy with one or two showers. Coastal fog in the morning and at night. Sunny periods during the day tomorrow. Temperatures will range between 21 and 25 degrees. Moderate south to southeasterly winds.

Outlook : Warm during the day on Thursday and there will be coastal fog in the morning and at night. Slightly cooler with a few rain patches towards the weekend.


(The above forecast period is valid up to 23:59 HKT tomorrow, 20/02/2019; 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 19/Feb/2019

N0 WARNING.

GENERAL SITUATION AT 182100 UTC:
TROUGH 21N 112E 22N 117E QSTNR.

MARINE FORECAST FOR 24 HOURS FROM 190100 UTC:

HONG KONG= E TO SE 4-5. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. DOWN TO 2000 M IN MIST OR RAIN PATCHES LATER. SEA UP TO 2 M. SWELL NE 2 M. TEMP 22-21 C. =
KWANGTUNG= E TO SE 4-5, OCNL 6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. DOWN TO 500 M IN FOG OR RAIN PATCHES LATER. SEA UP TO 3 M. SWELL NE 2 M. =
TAIWAN STRAIT= NE 4-5, OCNL 6. ISOL SHOWERS AND TS. DOWN TO 4000 M IN MIST OR RAIN PATCHES LATER. SEA UP TO 3 M. SWELL NE 2 M. =
BASHI= S TO SE 4-5, OCNL 6. CLD. SEA UP TO 3 M. SWELL NE 2 M. =
PRATAS= S TO SE 4-5, OCNL 6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 3 M. SWELL NE 2 M. =
BALINTANG= S TO SE 4-5, OCNL 6. CLD. SEA UP TO 3 M. SWELL NE 2 M. =
SCARBOROUGH= S TO SE 4-5. FINE. SEA UP TO 2 M. SWELL NE 2 M. =
PARACEL= S 4-5, OCNL 6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 3 M. SWELL NE 2 M. =
TONKIN= S 4-5, OCNL 6. DOWN TO 4000 M IN MIST PATCHES. SEA UP TO 3 M. =
DANANG= S 4-5, OCNL 6. CLD. 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
    9-day Weather Forecast | UV Index Forecast | Weather Information for Fishermen

    Bulletin issued at 16:30 HKT 19/Feb/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 4:30 p.m. on 19 February 2019

    Warnings:
    Fog in all areas.

    Weather Situation:
    A southeasterly airstream is affecting the south China coastal waters.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    South to southeast force 4 to 5.
    Isolated showers and thunderstorms, fog patches later.
    Moderate seas.

    Nan'ao and Shanwei:
    East to southeast force 4 to 5.
    Isolated squally showers and thunderstorms, fog patches later.
    Moderate seas.

    South of Hong Kong:
    South to southeast force 4 to 5.
    Isolated showers and thunderstorms, fog patches later.
    Moderate seas.

    Shangchuan Dao:
    South to southeast force 4 to 5.
    Fog patches later.
    Moderate seas.

    Outlook for the next 48 hours
    South to southeasterly winds of force 4 to 5, becoming north to northeasterly winds of force 4 to 5 later. Fog patches.

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

    Waglan Island Wind northeast force 4
      Visibility 5000 Metres

    Shantou Wind south-southeast force 2
      Visibility 18 Kilometres in rain

    Huangmaozhou Wind east force 2

    Macau Wind east-southeast force 2
      Visibility 9 Kilometres

    Xisha Wind south force 2
      Visibility 26 Kilometres

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

    Bulletin issued at 17:30 HKT 19/FEB/2019
    (Next update at 01:30 HKT 20/FEB/2019)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE EASTERLY AIRSTREAM AFFECTING THE EASTERN
     COAST OF GUANGDONG IS BEING REPLACED BY A
     MARITIME AIRSTREAM GRADUALLY.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  090/5-10
                  TEMPO VRB/15G25 IN TS
       OFFSHORE:  120/10-15                            25-21
   B.   2000 FT:  180/10-15                            19
   C.   5000 FT:  220/20                               15
   D.  10000 FT:  240/20                               5
   E.  18000 FT:  250/35                               MS9
   F.  24000 FT:  250/55                               MS19
   G.  30000 FT:  240/80                               MS30
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY CLOUDY WITH ISOLATED SHOWERS. A FEW
      ISOLATED THUNDERSTORMS AT FIRST. LOCALISED MIST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT  SCT 3000 FT
      TEMPO FEW CB 800 FT  SCT 1200 FT  BKN 6000 FT
   K. VISIBILITY    : 9 KM.  TEMPO 4000 M IN SHOWERS/MIST. TEMPO 2000 M IN TS.
   L. 0 DEG. C LEVEL: 12500 FT      10 DEG. C LEVEL(S) : 7800 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS.
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 19 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE SOUTH TO SOUTHEASTERLY WINDS. MAINLY
     CLOUDY WITH A FEW SHOWERS. SUNNY PERIODS DURING
     THE DAY. LOCALISED MIST/FOG IN THE MORNING.=

    ===================================================================
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 19/Feb/2019 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     19.3 C
Minimum Air Temperature                     16.8 C
Grass Minimum Temperature                   16.7 C
Relative Humidity                        86 - 96 Percent
Rainfall                                    18.1 mm 
Total rainfall since 1st January            24.9 mm
Against an average of                       60.3 mm

Other Stations                Min                  Max
King's Park                  16.1 C               18.7 C
Wong Chuk Hang               16.4 C               20.0 C
Ta Kwu Ling                  16.7 C               18.2 C
Lau Fau Shan                 16.3 C               19.9 C
Tai Po                       16.4 C               18.2 C
Sha Tin                      16.3 C               19.1 C
Tuen Mun                     17.1 C               19.1 C
Tseung Kwan O                16.2 C               17.7 C
Sai Kung                     16.6 C               19.7 C
Cheung Chau                  16.7 C               18.9 C
Chek Lap Kok                 16.9 C               20.8 C
Tsing Yi                     17.0 C               20.1 C
Shek Kong                    17.1 C               21.5 C
Tsuen Wan Ho Koon            15.9 C               19.5 C
Tsuen Wan Shing Mun Valley   16.4 C               18.3 C
Hong Kong Park               16.7 C               18.6 C
Shau Kei Wan                 16.1 C               18.8 C
Kowloon City                 16.0 C               19.5 C
Happy Valley                 16.9 C               19.9 C
Wong Tai Sin                 16.4 C               19.8 C
Stanley                      16.3 C               18.8 C
Kwun Tong                    15.8 C               18.8 C
Sham Shui Po                 16.8 C               19.2 C
Kai Tak Runway Park          16.7 C               19.7 C
Yuen Long Park               17.0 C               21.9 C
Tai Mei Tuk               16.1 C               17.7 C

Duration of sunshine (King's Park):              0.2 H
The mean UV index recorded at King's Park yesterday was 0.5,
the UV intensity was Low.
The maximum UV index for yesterday was 2.
 

Yesterday's (18 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 18 Feb
     2003copy right image | Important notices | Privacy policy Last revision date: <19 Feb 2019> 

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