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Weather Information for South China Coastal Waters

Bulletin issued at 13:02 HKT 19/Mar/2018

At 1 p.m. at the Hong Kong Observatory the air temperature was 24 degrees Celsius and the relative humidity 82 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 25 degrees;
Wong Chuk Hang 25 degrees;
Ta Kwu Ling 25 degrees;
Lau Fau Shan 26 degrees;
Tai Po 23 degrees;
Sha Tin 26 degrees;
Tuen Mun 26 degrees;
Tseung Kwan O 24 degrees;
Sai Kung 24 degrees;
Cheung Chau 24 degrees;
Chek Lap Kok 26 degrees;
Tsing Yi 27 degrees;
Shek Kong 27 degrees;
Tsuen Wan Ho Koon 25 degrees;
Tsuen Wan Shing Mun Valley 25 degrees;
Hong Kong Park 25 degrees;
Shau Kei Wan 24 degrees;
Kowloon City 25 degrees;
Happy Valley 26 degrees;
Wong Tai Sin 25 degrees;
Stanley 25 degrees;
Kwun Tong 25 degrees;
Sham Shui Po 25 degrees;
Kai Tak Runway Park 23 degrees;
Yuen Long Park 27 degrees;
Tai Mei Tuk 24 degrees.


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


Climatological Information for 19 Mar

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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Automatic Regional Weather Forecast in Hong Kong & Pearl River Delta Region

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UV Index Forecast |  Weather Information for South China Coastal Waters

Bulletin updated at 13:10 HKT 19/Mar/2018

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

A cold front over inland Guangdong is moving southwards gradually. It is expected to move across the coastal areas tomorrow morning. Besides, thundery showers are affecting the coast of Guangdong.

Weather forecast for this afternoon and tonight

Mainly cloudy with a few showers and relatively low visibility. There will be thunderstorms later. Light to moderate east to southeasterly winds.

Outlook : There will still be thundery showers at first tomorrow and temperatures will fall appreciably during the day. Fine and dry with cool mornings in the following couple of days.


(The above forecast period is valid up to 23:59 HKT today, 19/03/2018; 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/Mar/2018

N0 WARNING.

GENERAL SITUATION AT 182100 UTC:
COLD FRONT 24N 111E 25N 114E 30N 123E S 10KT.

MARINE FORECAST FOR 24 HOURS FROM 190100 UTC:

HONG KONG= E TO SE 4-5, N UP TO 7 LATER. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. DOWN TO 500 M IN FOG PATCHES AT FIRST. SEA UP TO 2 M, UP TO 4 M LATER. TEMP 25-19 C. =
KWANGTUNG= E TO SE 4-5, N 6-7 LATER. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. DOWN TO 500 M IN FOG PATCHES AT FIRST. SEA UP TO 2 M, 3-4 M LATER. =
TAIWAN STRAIT= SE 4-5, BEC N 6-7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. DOWN TO 500 M IN FOG PATCHES AT FIRST. SEA UP TO 2 M, BEC 3-4 M. =
BASHI= SE 4-5. ISOL SHOWERS. SEA UP TO 2 M. =
PRATAS= SE 4-5. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS LATER. SEA UP TO 2 M. =
BALINTANG= SE 4-5. ISOL SHOWERS. SEA UP TO 2 M. =
SCARBOROUGH= E TO NE 4-5. ISOL SHOWERS. SEA UP TO 2 M. =
PARACEL= SE 4-5, N 6-7 LATER. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS LATER. SEA UP TO 2 M, 3-4 M LATER. =
TONKIN= SE 4-5, BEC N 6-7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. DOWN TO 500 M IN FOG PATCHES AT FIRST. SEA UP TO 2 M, BEC 3-4 M. =
DANANG= SE 4-5, N 6-7 LATER. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS LATER. SEA UP TO 2 M, 3-4 M LATER. =
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 19/Mar/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 12:30 p.m. on 19 March 2018

    Warnings:
    Strong winds in all areas. Fog in all areas.

    Weather Situation:
    The cold front over inland Guangdong is moving southwards gradually. The associated thundery showers will affect the coastal waters of Guangdong tonight and tomorrow.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East to southeast force 4, becoming north up to force 7 later.
    Isolated squally showers and thunderstorms, fog patches at first.
    Moderate seas, becoming rough seas later.

    Nan'ao, Shanwei and South of Hong Kong:
    East to southeast force 4 to 5, becoming north force 6 to 7 later.
    Isolated squally showers and thunderstorms, fog patches at first.
    Moderate seas, becoming rough seas later.

    Shangchuan Dao:
    Southeast force 4 to 5, becoming north force 6 to 7 later.
    Isolated squally showers and thunderstorms, fog patches at first.
    Moderate seas, becoming rough seas later.

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

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

    Waglan Island Wind north-northeast force 2
      Visibility 8 Kilometres

    Shantou Wind west force 1
      Visibility 12 Kilometres

    Dongsha Wind east-southeast force 2
      Visibility 10 Kilometres

    Huangmaozhou Wind east-southeast force 2

    Macau Wind east-southeast force 1
      Visibility 4100 Metres in mist

    Xisha Wind south-southwest force 1
      Visibility 24 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 12:30 HKT 19/MAR/2018
    (Next update at 17:30 HKT 19/MAR/2018)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE COLD FRONT OVER INLAND GUANGDONG IS MOVING
     SOUTHWARDS GRADUALLY.  IT IS EXPECTED TO MOVE
     ACROSS THE COAST TOMORROW MORNING.  MEANWHILE,
     THUNDERY SHOWERS ARE AFFECTING INLAND GUANGDONG
     AND THE WESTERN PART OF THE COASTAL AREAS.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1300 TO 2300 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  150/5-10
                  TEMPO VRB/20G30 IN TS
       OFFSHORE:  110/10-15                            26-21
   B.   2000 FT:  190/15                               18
   C.   5000 FT:  230/15                               15
   D.  10000 FT:  250/30                               7
   E.  18000 FT:  250/45                               MS8
   F.  24000 FT:  260/55                               MS19
   G.  30000 FT:  260/70                               MS31
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      4100 - 4700 FT.
   I. WEATHER       : 
      SUNNY INTERVALS WITH A FEW SHOWERS AND SQUALLY
      THUNDERSTORMS.  LOCALIZED MIST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1000 FT  SCT 3000 FT.  TEMPO FEW 600 FT
      SCT CB 1500 FT  BKN 4000 FT.
   K. VISIBILITY    : 7 KM.  TEMPO 4000 M IN SHOWERS/MIST.
                      TEMPO 2000 M IN TS.
   L. 0 DEG. C LEVEL: 14000 FT      10 DEG. C LEVEL(S) : 9000 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS.  MOD NEAR HILLS.
   N. SEA STATE     : 1.5 M         SEA TEMPERATURE    : 19 DEG
IV.  FURTHER OUTLOOK: 
     LIGHT WINDS, BECOMING FRESH TO STRONG NORTHERLY
     WINDS.  CLOUDY WITH SHOWERS AND SQUALLY
     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.

    The latest significant weather information
    issued by the Hong Kong Observatory at 22:05 HKT on 15 Mar 18

    VHHK SIGMET 1 VALID 151010/151410 VHHH- VHHK HONG KONG FIR SEV TURB FCST N OF N20 FL140/240 MOV E 05KT NC= VHHK SIGMET 2 VALID 151410/151810 VHHH- VHHK HONG KONG FIR SEV TURB FCST N OF N20 AND E OF E113 FL140/240 MOV E 05KT 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 19/Mar/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     24.1 C
Minimum Air Temperature                     19.2 C
Grass Minimum Temperature                   18.3 C
Relative Humidity                        75 - 91 Percent
Rainfall                                      Trace 
Total rainfall since 1st January            89.4 mm
Against an average of                      113.9 mm

Other Stations                Min                  Max
King's Park                  18.6 C               23.9 C
Wong Chuk Hang               19.0 C               25.1 C
Ta Kwu Ling                  18.7 C               25.2 C
Lau Fau Shan                 17.9 C               26.2 C
Tai Po                       19.1 C               22.3 C
Sha Tin                      19.0 C               24.9 C
Tuen Mun                     19.1 C               24.4 C
Tseung Kwan O                18.1 C               22.1 C
Sai Kung                     18.7 C               22.0 C
Cheung Chau                  18.4 C               23.5 C
Chek Lap Kok                 19.7 C               27.3 C
Tsing Yi                     19.9 C               25.3 C
Shek Kong                    19.7 C               26.9 C
Tsuen Wan Ho Koon            18.6 C               25.0 C
Tsuen Wan Shing Mun Valley   19.4 C               25.7 C
Hong Kong Park               19.0 C               23.5 C
Shau Kei Wan                 18.1 C               22.0 C
Kowloon City                 18.7 C               24.5 C
Happy Valley                 19.1 C               25.5 C
Wong Tai Sin                 18.9 C               24.9 C
Stanley                      18.5 C               23.1 C
Kwun Tong                    18.2 C               23.6 C
Sham Shui Po                 19.5 C               25.3 C
Kai Tak Runway Park          19.0 C               22.3 C
Yuen Long Park               18.9 C               27.4 C
Tai Mei Tuk               18.4 C               24.9 C

Duration of sunshine (King's Park):              4.9 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.
Sea surface temperature (Waglan Island):        19.5 C 

Yesterday's (18 Mar 2018) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.08 to
0.14 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                         0.12
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                        0.14

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 Mar
     2003copy right image | Important notices | Privacy policy Last revision date: <19 Mar 2018> 

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