A Flood Alert was issued for Plymouth Sound, Wembury Bay and tidal estuaries in Cornwall, Devon, Plymouth on 26th October 2026. Affected watercourses included the South Cornwall Coast.
During this event, FloodRadar monitoring gauges recorded notable rises. The River Yealm at Puslinch rose 0.69m, peaking at 1.19m, while the River Erme at Ermington climbed 0.65m.
Environment Agency advice issued
High tides tomorrow morning may lead to flooding. Flooding is possible 2 hours either side of high tide on Tuesday morning. Areas particularly at risk include exposed coastal areas of Plymouth Sound including Cawsand, Kingsand and The Hoe, Millbrook, and low-lying areas on the Tidal Lynher, Tamar, Tavy, Plym and Yealm estuaries. The high tide at Plymouth on Tuesday is at 06:03, times of high water will vary along the coast. Forecast total high tide level is 2.74mAOD. Expect tide levels along the coast to be between 0.30 and 0.40 metres above tide table level. Storm force 6 SW winds and offsh
Monitoring gauges during this event
| Station | River | Rise | Peak |
|---|---|---|---|
| Puslinch | River Yealm | +0.69m | 1.19m |
| Ermington | River Erme | +0.65m | 1.09m |
| Ludbrook | River Tavy | +0.58m | 1.15m |
| Carnwood | River Plym | +0.50m | 1.00m |
| Plympton | Long Brook | +0.40m | 0.61m |
| Cornwood | River Yealm | +0.31m | 0.60m |
| Newnham Park | Tory Brook | +0.16m | 0.59m |