A Flood Warning was issued for Groundwater flooding for the North Winterborne, north of the A354 in Dorset Council between 16th and 18th March 2026. Affected watercourses included the Groundwater.
During this event, FloodRadar monitoring gauges recorded notable rises. The Groundwater Level at Ridge Way rose 1.80m, peaking at 75.01m, while the Groundwater Level at Iwerne Hill Farm climbed 1.23m.
Environment Agency advice issued
High groundwater levels are expected to continue to cause flooding. The groundwater level at the Delcombe Wood borehole remains high at 134.35m above sea level. Flooding is expected for: Turnworth, Winterborne Stickland, Winterborne Houghton, Clenston, Whatcombe and Whitechurch. Levels are starting to fall steadily. No further rainfall is forecast this week and groundwater levels remain reactive. We are closely monitoring the situation. If you have a pump, make sure it is working and switched on. Think about alternative power sources in case of power cuts. Roads may be impassable due to flood
Monitoring gauges during this event
| Station | River | Rise | Peak |
|---|---|---|---|
| Ridge Way | Groundwater Level | +1.80m | 75.01m |
| Iwerne Hill Farm | Groundwater Level | +1.23m | 108.64m |
| Dickley Down | Groundwater Level | +0.97m | 160.70m |
| Badbury Rings | Groundwater Level | +0.86m | 34.10m |
| Delcombe Wood | Groundwater Level | +0.72m | 134.86m |
| Doles Ash | Groundwater Level | +0.51m | 120.34m |
| Bank Barrow | Groundwater Level | +0.48m | 51.87m |
| Ashton Farm | Groundwater Level | +0.20m | 70.96m |
| Horton Inn | Groundwater Level | +0.14m | 40.50m |
| Ashmore | Groundwater Level | +0.11m | 134.07m |