A Flood Alert was issued for Coastal areas of Seaford seafront in East Sussex on 23rd October 2026. Affected watercourses included the English Channel.
During this event, FloodRadar monitoring gauges recorded notable rises. The Tide at Eastbourne Harbour rose 5.11m, peaking at 2.97m, while the River Bull at Hellingly climbed 0.59m.
Environment Agency advice issued
High tides on Friday may lead to flooding. Flooding is possible for 2 hours either side of Friday evening's tide at 21:15 on 23/10/2026. Storm Austen is causing difficult coastal conditions, including large waves which are coinciding with high tides. A small amount of spray overtopping will affect footpaths, seafront parking and the road at Marine Parade and the Esplanade. Tide table values are increasing by 0.04 m. Total forecast tide is 6.09 metres Chart Datum (2.57 mAOD) at Newhaven. Gale Force 8 Westerly wind. Similar conditions are likely to persist until 27/10/2026. Saturday's tide at
Monitoring gauges during this event
| Station | River | Rise | Peak |
|---|---|---|---|
| Eastbourne Harbour | Tide | +5.11m | 2.97m |
| Hellingly | River Bull | +0.59m | 0.85m |
| Barcombe | River Ouse | +0.44m | 3.06m |
| Barcombe Gates | River Ouse | +0.17m | 5.49m |
| Bell Lane Grill | Winterbourne Stream | +0.05m | 4.62m |