National Network of Regional Coastal Monitoring Programmes

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Note that these are real-time data and are not quality-controlled. Long-range graphs are plotted from a randomised subsample of half-hourly data.



Additional Information

 Wave buoy location  50° 36.13' N  002° 31.37' W 
 WMO code  6201006
 Approximate water depth  12 m CD
 Approximate spring tidal range  3.1 m
 Storm alert threshold  4.18 m


Wave data are recorded using a Datawell Directional WaveRider Mk III buoy. The buoy was first deployed on 22 December 2006, at which time the magnetic declination at the site was 2.9° west, changing by 0.15° east per year. Wave direction is reported following the nautical convention, meaning that the direction is where the waves come from, measured clockwise from magnetic north.


23/05/2024 Scheduled service
13/01/2024 Scheduled service
13/06/2023 Scheduled service
24/09/2022 Scheduled service
13/06/2022 Scheduled service
09/05/2022 There are ongoing issues with the BT line at the shore station which will be remedied at the earliest opportunity.
09/10/2021 Scheduled service
08/04/2021 Scheduled service
17/10/2020 Scheduled service
09/05/2020 Scheduled service
18/11/2019 Scheduled service
18/06/2019 Scheduled service
25/10/2018 Scheduled service
06/05/2018 Scheduled service
17/11/2017 Scheduled service
23/05/2017 Scheduled service
01/12/2016 Scheduled service
06/05/2016 Scheduled service
11/01/2016   Data stream appears to have stopped due to network works in the shore station area.
05/11/2015 There appears to be an issue with the receiving antenna at the shore station affecting the data feed for Chesil and Weymouth wave buoys. The site will be visited as soon as possible to rectify the issue.
09/10/2015 Scheduled service
29/05/2015 No data currently as the sailing centre at Weymouth are undetaking work on their internet connection and have switched off all power to their server room where the shore station is located.
14/04/2015 Scheduled service
02/09/2014 Scheduled service
19/02/2014 The antenna had broken off the damaged buoy, which has been recovered for further tests; a replacement buoy has been deployed
15/02/2014 The buoy stopped sending data last night; the problem does not appear to be at the shore station end and efforts to locate the buoy are underway
12/09/2013 Scheduled service
19/06/2013 Buoy serviced to fix GPS
02/03/2013 Scheduled service
24/07/2012 Scheduled service, buoy replaced
10/01/2012 Scheduled service
19/05/2011 Scheduled service
24/11/2010 Scheduled service. New mooring deployed
11/05/2010 Scheduled service
09/11/2009 Scheduled service
05/07/2009 Power surge has caused computer failure in the shore station.
04/06/2009 Scheduled service, hull swapped out for battery change
15/112008 Phone line found to be unplugged at the shore station.
06/11/2008 Scheduled service, GPS change and investigation of suspect mooring.
16/05/2008 Scheduled service
27/11/2007 Scheduled service
12/01/2007 The wave buoy has developed a fault, which is under investigation by Datawell. Only the GPS position and sea surface temperature are correct.
09/01/2007 The wave buoy has come away from its mooring and has been recovered. The buoy will be re-deployed as soon as the faults previously identified have been fixed.