A Flood Alert was issued for Mersey Estuary at Warrington in Halton, Warrington on 18th April 2026. Affected watercourses included the Mersey Estuary.
During this event, FloodRadar monitoring gauges recorded notable rises. The River Mersey at Westy rose 0.51m, peaking at 4.27m, while the Manchester ship canal at Ferry Lane, Warrington climbed 0.32m.
Environment Agency advice issued
High tides this afternoon may lead to flooding. Flooding is possible from 12:30 PM on 18 April 2026 Locations most affected will be low lying land and roads at Fiddlers Ferry peaking at 12:30 PM, Eastford Road peaking at 12:45 PM and Arpley Bridge peaking at 1:00 PM. It is possible that river levels may affect Arpley Road under the railway bridge. We are not expecting the next high tide in the early hours of tomorrow morning on 19 April 2026 to reach the flood alert level. We are closely monitoring the situation . Avoid using low lying footpaths and any bridges near local watercourses . T
Monitoring gauges during this event
| Station | River | Rise | Peak |
|---|---|---|---|
| Westy | River Mersey | +0.51m | 4.27m |
| Ferry Lane, Warrington | Manchester ship canal | +0.32m | 0.57m |
| Causey Bridge | Sankey Brook | +0.10m | 0.34m |
| Acton Bridge | River Weaver | +0.08m | 2.70m |
| Pickerings Cut | River Weaver | +0.06m | 4.89m |