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.

Start Bay


Additional Information

 Wave buoy location  50° 17.53' N  003° 36.99' W
 WMO code  6201002
 Approximate water depth  10 m CD
 Approximate spring tidal range  4.4 m
 Storm alert threshold  2.98 m


 Wave data are measured using a Datawell Directional WaveRider Mk III buoy. The buoy was first deployed on 05 April 2007, at which time the magnetic declination at the site was 3.2° 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.


10/05/2024 Scheduled service
24/08/2023 Scheduled service
27/08/2023 Data are currently delayed due to a router issue. An investigation is underway.
03/02/2023 Scheduled service
07/11/2022 An issue at the shore station has interrupted the data feed. This will be resolved asap. Update: The feed was restored on 08/11/2022 and the data is backfilling.
29/05/2022 Scheduled service
18/01/2022 During a visit to the shore station, the 4G communications system was updated and the computer replaced. Data has been restored. 
07/01/2022 No data is reaching the website due to network issues. Investigations are ongoing. 
11/11/2021 The buoy has been redeployed. 
06/11/2021 The buoy was set adrift and recovered the same day. Redeployment will be at the earliest opportunity. 
12/10/2021 Scheduled service
18/03/2021 Scheduled service
30/11/2020 The buoy was redeployed. 
03/11/2020 The buoy was sent adrift and recovered on the same day. 
12/05/2020 Scheduled service
17/12/2019 Scheduled service
02/06/2019 Scheduled service
06/09/2018 The buoy has been serviced and re-deployed
10/08/2018 The buoy has come adrift. Rescue operations are under way. The buoy was recovered later this day
05/05/2018 Scheduled service
25/05/2017 The connection has been restored.
23/05/2017 Due to technical problems at the shore station, no data is being received. The issue is being investigated.
04/01/2017 Scheduled service
21/08/2016 Issues with the phone line at the shore station are preventing data upload. BT have been contacted.
06/07/2016 Scheduled service
29/01/2016   Power has been restored to the shore station following a power cut and data are now coming through again.
28/01/2016 No data have been received from the buoy since yesterday morning. It is believed to still be on site but there is currently no response from the shore station.
16/01/2016 Scheduled service
16/06/2015 Scheduled service
31/03/2015 A problem with the phone line is preventing data being uploaded. A BT engineer has been called.
08/09/2014 Scheduled service
13/03/2014 Scheduled service
04/09/2013 Scheduled service
09/03/2013 Scheduled service, buoy replaced for painting
23/08/2012 Scheduled service
24/02/2012 Scheduled service
10/11/2011 Scheduled service
31/07/2010 The buoy has been cut adrift
12/05/2010 Scheduled service
30/11/2009 Scheduled service
28/05/2009 The buoy has been serviced and re-deployed
21/05/2009 The buoy has been reported near West Bay and kindly recovered by a local fisherman and Lyme Bay Sea School
11/03/2009 Scheduled service, hull swapped for battery change and painting
25/02/2009 Scheduled service
04/08/2008 Buoy adrift, recovered 8nm off Start Point, serviced and re-deployed
12/03/2008 Phone line and internet down, damaged in storm. BT repaired phoneline
26/01/2008 Scheduled service
23/07/2007 Buoy adrift, severed by propellor
09/05/2007 Buoy adrift, recovered and re-deployed