A Flood Warning was issued for Groundwater flooding for the Iwerne in Dorset Council on 12th March 2026. Affected watercourses included the Groundwater.
During this event, FloodRadar monitoring gauges recorded notable rises. The Groundwater Level at Delcombe Wood rose 1.06m, peaking at 136.19m, while the Groundwater Level at Woodyates climbed 1.05m.
Environment Agency advice issued
Continued high groundwater levels are expected to cause flooding. Flooding is expected from 11:00 on 12/03/2026. Areas that could be affected include: Iwerne Minster. The groundwater level at the Iwerne Hill Farm borehole is 109.07m, and is slowly falling. No significant rainfall is forecast in the next few days. 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 cellars in affected areas. We are closely monito
Monitoring gauges during this event
| Station | River | Rise | Peak |
|---|---|---|---|
| Delcombe Wood | Groundwater Level | +1.06m | 136.19m |
| Woodyates | Groundwater Level | +1.05m | 97.65m |
| Ridge Way | Groundwater Level | +0.97m | 76.34m |
| Badbury Rings | Groundwater Level | +0.64m | 34.91m |
| The Terraces Fonthill | Groundwater Level | +0.63m | 113.13m |
| Iwerne Hill Farm | Groundwater Level | +0.41m | 109.30m |
| Horton Inn | Groundwater Level | +0.27m | 40.79m |
| Doles Ash | Groundwater Level | +0.20m | 120.67m |
| Ashmore | Groundwater Level | +0.09m | 134.22m |
| Musseldean Copse | Groundwater Level | +0.09m | 134.71m |