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Groundwater flooding in upper River Ems Valley

Areas at risk of groundwater flooding on the upper River Ems at Compton, West Marden, Stoughton, Walderton and Racton

Groundwater West Sussex Solent and South Downs Code: 065FAG019

Flood Alert Active Warning

Raised: 2 Mar 2026 at 5:03pm • Updated: 2 Mar 2026 at 5:03pm
Groundwater is high, very close to the surface, but slowly falling at the Compton borehole. Springs will continue to appear, water will be in fields, and water will flow down roads, including Stoughton main road, the road from East Marden, between Cooks Lane and Barley Mow in Walderton, and the B2146 near Woodlands Lane. Groundwater will also affect a small number of cellars in Stoughton and Walderton. Only small amounts of rain are forecast over the five days to 06/03/2026, and groundwater at Compton borehole will continue to slowly fall over the coming week. There is a suggestion that high pressure, settled conditions, and only small amounts of rain could continue in the south east of England through the first half of March 2026. Which would allow groundwater to fall for longer. However, with groundwater so high, groundwater flood impacts are still likely to continue until at least the middle of March. Take care on roads that flood (Stoughton, Walderton). Ensure pumps work. We will update this message by 18:00 06/03/2026.

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Nearby Monitoring Stations

Flood Event History (3)

2 Mar 2026 at 5:03pm Flood Alert
Groundwater is high, very close to the surface, but slowly falling at the Compton borehole. Springs will continue to appear, water will be in fields, and water will flow down roads, including Stoughton main road, the road from East Marden, between Cooks Lane and Barley Mow in Walderton, and the B214...
27 Feb 2026 at 12:20pm Flood Alert
Groundwater is high, very close to the surface, but slowly falling at the Compton borehole. Springs will continue to appear, water will be in fields, and water will flow down roads, including Stoughton main road, the road from East Marden, between Cooks Lane and Barley Mow in Walderton, and the B214...
23 Feb 2026 at 4:15pm Flood Alert
Groundwater is high, very close to the surface, but slowly falling at the Compton borehole. Springs will appear, water will be in fields, and water will flow down roads, including Stoughton main road, the road from East Marden, between Cooks Lane and Barley Mow in Walderton, and the B2146 near Woodl...

Related Flood Areas

Data from the Environment Agency • Area code: 065FAG019