Flood Alert Issued for Groundwater Flooding in Upper Aldbourne Valley, Wiltshire

Alert Details

The Environment Agency has issued a flood alert for groundwater flooding in the Upper Aldbourne Valley. This alert was officially raised at 7:55 AM on March 17, 2026, for the Thames area.

Affected Areas

The geographic scope of this alert is focused on the Upper Aldbourne Valley located in the county of Wiltshire. Specific monitoring is currently centered around the Water Acre borehole.

What You Should Do

Residents are advised to monitor groundwater levels via the ‘Get Flood Warnings’ service on gov.uk. Drivers should exercise extreme caution when traveling through flood water to ensure personal safety and to prevent the displacement of water toward properties.

Expected Conditions

High groundwater levels are currently present, which may lead to the flooding of low-lying areas and roads. While levels at the Water Acre borehole are falling very gradually, the Environment Agency warns that conditions remain sensitive to any further sustained rainfall.

Timeline

The alert is active as of March 17, 2026. Due to the nature of groundwater flooding, these conditions are expected to persist for several weeks or longer. The Environment Agency will provide an update by 12:00 PM on March 24, 2026, or sooner if the situation changes.