A Flood Alert was issued for Middle River Mersey catchment including areas near Bramhall, Stockport, Sale, Altrincham and Urmston in Cheshire East, Manchester, Salford, Stockport, Tameside, Trafford, Warrington on 4th September 2026. Affected watercourses included the River Mersey.
During this event, FloodRadar monitoring gauges recorded notable rises. The River Mersey at Fiddlers Ferry rose 2.85m, peaking at 4.95m, while the River Mersey at Didsbury River climbed 0.90m.
Environment Agency advice issued
The flood forecast has changed significantly. As a result, there is no longer a risk of flooding in the area. Weather conditions are expected to improve and no further flooding is expected. We will continue to monitor the situation and will issue further alerts or warnings if necessary. Continue to take care on waterside roads and footpaths and don't put yourself in unnecessary danger. Stay away from floodwater - it contains hidden dangers such as open manhole covers, sewage and chemicals.
Monitoring gauges during this event
| Station | River | Rise | Peak |
|---|---|---|---|
| Fiddlers Ferry | River Mersey | +2.85m | 4.95m |
| Didsbury River | River Mersey | +0.90m | 3.52m |
| Westy | River Mersey | +0.70m | 4.22m |
| Adelphi Weir | River Irwell | +0.62m | 0.82m |
| Flixton Bridge | River Mersey | +0.58m | 0.84m |
| Ashton Weir | River Mersey | +0.54m | 0.87m |
| Brinksway | River Mersey | +0.39m | 0.88m |
| Cringle Brook Debris Screen | Cringle Brook | +0.37m | 0.39m |
| Northenden | River Mersey | +0.32m | 0.58m |
| Northern Moor | Baguley Brook | +0.22m | 0.41m |