A Flood Alert was issued for Mersey Estuary at Warrington in Halton, Warrington on 4th April 2026. Affected watercourses included the Mersey Estuary.
During this event, FloodRadar monitoring gauges recorded notable rises. The River Mersey at Fiddlers Ferry rose 4.12m, peaking at 6.44m, while the River Mersey at Westy climbed 0.98m.
Environment Agency advice issued
High tides overnight may lead to flooding. Flooding is possible from 1.45 AM on 05 April 2026. Locations most affected will be low lying land and roads at Fiddlers Ferry (peaking at 2.45 AM), Eastford Road (peaking at 3:00 AM), and Arpley Bridge (peaking at 3:15 AM). It is possible that river levels may affect Arpley Road under the railway bridge We are closely monitoring the situation . Avoid coastal roads, which may be flooded . This message will be updated by 10:30AM on 05 April 2026 or as the situation changes.
Monitoring gauges during this event
| Station | River | Rise | Peak |
|---|---|---|---|
| Fiddlers Ferry | River Mersey | +4.12m | 6.44m |
| Westy | River Mersey | +0.98m | 4.75m |
| Ferry Lane, Warrington | Manchester ship canal | +0.22m | 0.59m |
| Acton Bridge | River Weaver | +0.11m | 2.73m |
| Causey Bridge | Sankey Brook | +0.10m | 0.40m |
| Pickerings Cut | River Weaver | +0.10m | 4.95m |