A Flood Warning was issued for Groundwater flooding for the Wylye Valley at Warminster in Wiltshire on 12th March 2026. Affected watercourses included the Groundwater.
During this event, FloodRadar monitoring gauges recorded notable rises. The Groundwater Level at Woodyates rose 1.05m, peaking at 97.65m, while the Groundwater Level at Windwhistle climbed 0.99m.
Environment Agency advice issued
High groundwater levels are expected to cause flooding. Groundwater levels in Salisbury Plain are beginning to fall but remain high. Areas that could be affected include: the Wylye Valley at Warminster. The groundwater level at the Tilshead borehole is at 99.00m. The weather is forecast to be unsettled in the coming days which may cause falling levels to rise. Residents are advised to prepare property resilience measures and ensure that pumps are working where they have been installed. Residents may experience inundation of septic tanks and sewer systems. Properties may experience flooding in
Monitoring gauges during this event
| Station | River | Rise | Peak |
|---|---|---|---|
| Woodyates | Groundwater Level | +1.05m | 97.65m |
| Windwhistle | Groundwater Level | +0.99m | 71.10m |
| The Terraces Fonthill | Groundwater Level | +0.63m | 113.13m |
| Stoford Cross | Groundwater Level | +0.60m | 68.82m |
| Oakley Industrial Estate | Groundwater Level | +0.41m | 91.67m |
| Chitterne Down | Groundwater Level | +0.33m | 98.63m |
| Ashmore | Groundwater Level | +0.09m | 134.22m |
| Musseldean Copse | Groundwater Level | +0.09m | 134.71m |