MARINE FORECAST
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Marine Forecast

Weather Information for the Marine Community

Bulletin issued at 09:00 HKT 04/Jun/2018

GALE WARNING AREAS: PARACEL AND DANANG.

GENERAL SITUATION AT 032100 UTC:
FOR DETAILS ON TROPICAL DEPRESSION OVER CENTRAL PART OF THE SOUTH CHINA SEA, PLEASE REFER TO THE 3-HRLY SHIPPING WARNINGS.

MARINE FORECAST FOR 24 HOURS FROM 040100 UTC:

HONG KONG= E 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. SWELL E TO SE 2 M. TEMP 32-27 C. =
KWANGTUNG= E TO SE 5-6. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL E TO SE 2-3 M. =
TAIWAN STRAIT= NE 4-5. ISOL SHOWERS. SEA UP TO 2 M. SWELL NE 2 M. =
BASHI= E TO SE 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. SWELL E TO SE 2 M. =
PRATAS= SE 5-6. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL E TO SE 2 M, SW 2 M LATER. =
BALINTANG= E TO SE 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. SWELL E TO SE 2 M. =
SCARBOROUGH= S TO SW 5-6. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL SE 2 M, SW 2 M. =
PARACEL= SE 6, BEC CYCLONIC 7-8. DOWN TO 500 M IN FRQ HEAVY SQUALLY SHOWERS AND TS. SEA 3 M, BEC 4-6 M. SWELL SE 2-3 M, SW 2-3 M. =
TONKIN= N TO NE 5-6, 7 LATER. DOWN TO 500 M IN FRQ HEAVY SQUALLY SHOWERS AND TS. SEA 2-3 M, 4 M LATER. SWELL SE 2 M. =
DANANG= CYCLONIC 6, BEC W TO NW 7-8. DOWN TO 500 M IN FRQ HEAVY SQUALLY SHOWERS AND TS. SEA 3 M, BEC 4-6 M. SWELL SE 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

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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 19:00 HKT on 04 Jun 18

    VHHK SIGMET 2 VALID 040700/041100 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2236 E11730 - N2124 E11730 - N2012 E11412 - N2036 E11130 - N2130 E11130 - N2254 E11454 - N2236 E11730 TOP FL450 MOV NW 10KT NC= VHHK SIGMET 3 VALID 041100/041500 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2236 E11730 - N2124 E11730 - N2012 E11412 - N2036 E11130 - N2130 E11130 - N2254 E11454 - N2236 E11730 TOP FL450 MOV NW 10KT NC=

    Please click here for more about the SIGMET

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    TROPICAL CYCLONE WARNING FOR SHIPPING
    Gregorian/Lunar Calendar
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    Tropical Cyclone Warning for Shipping

    Tropical Cyclone Warning |  Track and Positions of Tropical Cyclones
    Current Weather |  Local Weather Forecast |  9-day Weather Forecast
    South China Coastal Waters |  Marine Forecast
    Severe Weather Information Centre

    Bulletin issued at 18:30 HKT 04/Jun/2018


    Tropical Cyclone Warning

    At 040900 UTC, Tropical Depression over the central part of South China Sea with central pressure 1000 hectopascals was centred within 60 nautical miles of one five point nine degrees north (15.9 N) one one zero point six degrees east (110.6 E) and is forecast to move north slowly for the next 24 hours.

    Maximum winds near the centre are estimated to be 25 knots.

    Radius of over 2 metre waves 90 nautical miles.

    Forecast position and intensity at 050900 UTC
    One eight point zero degrees north (18.0 N)
    One one zero point seven degrees east (110.7 E)
    Maximum winds 35 knots.

    Forecast position and intensity at 060900 UTC
    One nine point six degrees north (19.6 N)
    One one zero point six degrees east (110.6 E)
    Maximum winds 40 knots.

    Forecast position and intensity at 070900 UTC
    Two zero point six degrees north (20.6 N)
    One one zero point three degrees east (110.3 E)
    Maximum winds 35 knots.

    Forecast position and intensity at 080900 UTC
    Two one point seven degrees north (21.7 N)
    One one zero point two degrees east (110.2 E)
    Maximum winds 30 knots.

    Forecast position and intensity at 090900 UTC
    Two two point one degrees north (22.1 N)
    One one one point zero degrees east (111.0 E)
    Maximum winds 30 knots.



    The Hong Kong Observatory's tropical cyclone warnings for shipping are issued about one and a half hours after the time of observation. They incorporate additional information derived from surface and upper-air data and may therefore be slightly different from the real-time satellite or radar-based positions given in the hourly bulletins for public.

    While the forecast positions and track indicate the most likely future path of the tropical cyclone, they may deviate from the actual path taken by the storm.

    Tropical Cyclone Track
    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/Jun/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     32.6 C
Minimum Air Temperature                     27.3 C
Grass Minimum Temperature                   26.7 C
Relative Humidity                        62 - 82 Percent
Rainfall                                      Trace 
Total rainfall since 1st January           175.0 mm
Against an average of                      668.3 mm

Other Stations                Min                  Max
King's Park                  26.6 C               32.1 C
Wong Chuk Hang               27.1 C               31.0 C
Ta Kwu Ling                  26.6 C               33.8 C
Lau Fau Shan                 25.3 C               35.4 C
Tai Po                       26.6 C               31.0 C
Sha Tin                      26.7 C               32.3 C
Tuen Mun                     26.2 C               32.3 C
Tseung Kwan O                26.4 C               31.2 C
Sai Kung                     26.5 C               30.3 C
Cheung Chau                  26.4 C               32.3 C
Chek Lap Kok                 27.9 C               33.9 C
Tsing Yi                     27.3 C               32.9 C
Shek Kong                    26.8 C               33.9 C
Tsuen Wan Ho Koon            25.3 C               31.4 C
Tsuen Wan Shing Mun Valley   26.5 C               31.8 C
Hong Kong Park               26.4 C               31.1 C
Shau Kei Wan                 26.3 C               31.0 C
Kowloon City                 26.5 C               33.1 C
Happy Valley                 27.0 C               31.9 C
Wong Tai Sin                 26.1 C               31.1 C
Stanley                      26.7 C               30.3 C
Kwun Tong                    26.0 C               29.8 C
Sham Shui Po                 27.2 C               32.5 C
Kai Tak Runway Park          26.7 C               29.8 C
Yuen Long Park               26.3 C               32.5 C
Tai Mei Tuk               26.3 C               34.0 C

Duration of sunshine (King's Park):              8.3 H
The mean UV index recorded at King's Park yesterday was 5,
the UV intensity was Moderate.
The maximum UV index for yesterday was 11.
Sea surface temperature (Waglan Island):        28.1 C 

Yesterday's (03 Jun 2018) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.08 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                               0.10
Yuen Ng Fan                         0.12
Tai Mei Tuk                         0.12
Sha Tau Kok                         0.10
Kwun Tong                           0.12
Sai Wan Ho                          0.08
King's Park                         0.15
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 03 Jun
     2003copy right image | Important notices | Privacy policy Last revision date: <04 Jun 2018> 

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