A Flood Alert was issued for River Sankey catchment with St Helens and Warrington in Lancashire, St. Helens, Warrington, Wigan on 3rd September 2026. Affected watercourses included the River Sankey.
During this event, FloodRadar monitoring gauges recorded notable rises. The River Mersey at Fiddlers Ferry rose 3.11m, peaking at 5.21m, while the Millingford Brook at Lincoln Drive climbed 1.40m.
Environment Agency advice issued
Rising river levels overnight may lead to flooding. Flooding is possible from the morning of 04 September 2026 . Locations most affected will be low lying land and roads around Black, Barkers, Windle and Whittle Brooks and their tributaries rainfall overnight is expected to cause river levels to increase from Friday morning onwards, peaking around 09:00am 4th September. Flooding is expected to worsen until this time. Flood warnings ARE NOT currently expected to be issued. We are closely monitoring the situation . Take care and avoid walking, cycling or driving through flood water . This m
Monitoring gauges during this event
| Station | River | Rise | Peak |
|---|---|---|---|
| Fiddlers Ferry | River Mersey | +3.11m | 5.21m |
| Lincoln Drive | Millingford Brook | +1.40m | 1.66m |
| Liverpool Road | Sankey Brook | +0.78m | 2.22m |
| Higham Avenue | Sankey Brook | +0.70m | 0.97m |
| Ellamsbridge Road, St Helens | Sutton Mill Brook | +0.62m | 0.69m |
| Causey Bridge | Sankey Brook | +0.54m | 0.74m |
| Ivy Street, Ashton-In-Makerfield | Millingford Brook | +0.36m | 0.58m |
| Haydock West End Road | Black Brook | +0.33m | 0.41m |
| Westy | River Mersey | +0.25m | 3.77m |
| Ferry Lane, Warrington | Manchester ship canal | +0.20m | 0.46m |