A Flood Warning was issued for Groundwater flooding in the Bourne Valley - The Winterbournes in Hampshire, Wiltshire on 30th March 2026. Affected watercourses included the Groundwater.
During this event, FloodRadar monitoring gauges recorded notable rises. The Groundwater Level at Homington rose 0.37m, peaking at 63.06m, while the Groundwater Level at Clarendon climbed 0.27m.
Environment Agency advice issued
High groundwater levels are causing flooding. Groundwater levels in Salisbury Plain are high but slowly falling. Areas that could be affected include: Winterbourne Gunner, Winterbourne Dauntsey, Winterbourne Earls and Laverstock. The Groundwater level at Clarendon was 70.04 metres. Property flooding is possible when it is above 70.00 metres. High groundwater levels will influence the level of the River Bourne as well, increasing the risk of fluvial flooding. Residents are advised to prepare property resilience measures and ensure that pumps are working where they have been installed. Residents
Monitoring gauges during this event
| Station | River | Rise | Peak |
|---|---|---|---|
| Homington | Groundwater Level | +0.37m | 63.06m |
| Clarendon | Groundwater Level | +0.27m | 70.15m |
| Hazelberry Plantation | Groundwater Level | +0.25m | 124.72m |
| Stoford Cross | Groundwater Level | +0.20m | 66.00m |
| Odstock | Groundwater Level | +0.17m | 57.08m |
| Queen Manor Farm | Groundwater Level | +0.14m | 68.77m |
| Windwhistle | Groundwater Level | +0.12m | 68.23m |
| Chitterne Down | Groundwater Level | +0.11m | 97.28m |
| Tilshead | Groundwater Level | +0.09m | 97.11m |