A Flood Alert was issued for Groundwater flooding in West Dean, Singleton, Charlton, East Dean and Chilgrove in West Sussex on 23rd February 2026. Affected watercourses included the Groundwater.
During this event, FloodRadar monitoring gauges recorded notable rises. The River Rother at Lodsbridge rose 0.34m, peaking at 1.80m, while the River Lavant at Chichester Tozer Way climbed 0.09m.
Environment Agency advice issued
Groundwater is high, very close to the surface, but now falling. Springs will appear, water will be in fields, small amounts of water will flow down roads, groundwater will affect the ability of the sewage network to operate in East Dean, Charlton, Singleton and West Dean, and may appear in a small number of basements. Only isolated showers are forecast Monday to Wednesday 25/02/2026, and groundwater will continue to fall. On Thursday 26/02/2026 a weather front is forecast to bring widespread rainfall. There is uncertainty in rainfall amounts, and predictions may change, but it is probable tha
Monitoring gauges during this event
| Station | River | Rise | Peak |
|---|---|---|---|
| Lodsbridge | River Rother | +0.34m | 1.80m |
| Chichester Tozer Way | River Lavant | +0.09m | 13.59m |
| Iping Mill | River Rother | +0.06m | 0.56m |
| Graylingwell | River Lavant | +0.06m | 0.67m |