Flood Warning Issued for South Winterbourne Valley as Groundwater Levels Remain High

Alert Details

The Environment Agency has issued a Flood Warning (Severity Level 2) for groundwater flooding in the South Winterbourne Valley. This alert, issued by the Wessex regional office, indicates that high groundwater levels are expected to cause flooding in the region.

Affected Areas

The warning specifically covers several locations within the Dorset Council area, including:

• Winterbourne Abbas
• Winterbourne Steepleton
• Martinstown
• Winterbourne Monkton
• Winterbourne Herringston
• Winterbourne Came

What You Should Do

Residents in the affected areas are advised to take the following precautions:

• If you have a water pump, ensure it is in good working order and switched on.
• Prepare alternative power sources in the event of power cuts.
• Be aware that septic tanks and sewer systems may become inundated.
• Avoid driving through floodwater, as roads may be flooded or damaged.

Expected Conditions

Groundwater levels at the Kingston Russell borehole are currently recorded at 119.53m. While levels are falling slowly, they remain high enough to cause significant concern. The Environment Agency reports that properties may experience flooding in cellars, and inundation of essential utility systems is likely. Additional rainfall is forecast for later in the week, which may impact the rate at which groundwater levels recede.

Timeline

The alert was officially raised on March 9, 2026. The Environment Agency is closely monitoring the situation and expects to provide a formal update by 2:00 PM on March 16, 2026, or sooner if conditions change significantly.