NOTE! I have updated my predictions based on Today’s Aegir and a review of my approach – Please ignore previous versions of this table. Thursday 24th January
The Trent Aegir, also known as the
The Aegir occurs when a high spring tide meets the downstream flow of the river forcing it back and causing a wave to flow upstream. Typically it is possible to see the bore from Derrythorpe to as far up the river as Gainsborough. Beyond
The best places to see the Aegir are at Gainsborough, Morton, East Stockwith, West Stockwith and Owston Ferry.
The Environment Agency used to publish predictions for the bore but no longer do. I have therefore tried to make predictions for the bore myself using tidal tables
I have used the tidal range at the Humber Bridge to determine the likelihood of a good bore – the larger the tidal range the more likely there will be a good bore on the River Trent. I have then determined timings using a time difference from the predicted high tide. The highest tides are around the spring and autumn equinoxes.
The appearance of a bore can be affected by various other factors that may enhance or detract from the size of the bore;
- excessive flood water flowing down the river will reduce the size of the bore
- too little water flowing down the river will also reduce the size of the Aegir
- depending on the wind direction winds may enhance or detract from the size of the Aegir
- lighting may also affect how the Aegir is perceived – in my experience, it looks best when the sun is behind the river
- depending on the weather conditions the Aegir can be up to 30 minutes earlier than predicted.
To help me improve my predictions I should be grateful if you could email me (firstname.lastname@example.org) with details of actual times and appearances of the Aegir. Don’t forget to say where you were. Many thanks.
Also please feel free to share photos and reports of the aegir below.
Depending on the weather conditions the Aegir can be up to 30 minutes earlier than predicted. Be early to increase your chances of seeing it.
|Day||Date||Owston Ferry||Stockwith||Gainsborough||Tidal Range at Humber Bridge||Prospect|