Flood Alert Issued for Upper Aldbourne Valley Due to Rising Groundwater

Alert Details

The Environment Agency has issued a Level 3 Flood Alert for the Upper Aldbourne Valley. The alert was officially raised on February 24, 2026, at 11:48 AM following monitoring of local groundwater sources.

Affected Areas

The alert covers the Upper Aldbourne Valley located in Wiltshire, within the Thames area. Specific impacts are expected in low-lying areas and on local roads throughout the valley.

What You Should Do

Residents in the warning area are advised to take the following precautions:

• Prepare property resilience measures to mitigate potential water damage.
• Ensure that any installed water pumps are fully operational and in good working order.
• Exercise extreme caution when driving through flood water to ensure personal safety and to avoid causing waves that could flood nearby properties.

Expected Conditions

Groundwater levels are currently high at the Water Acre borehole. The Environment Agency indicates that levels are expected to remain high over the coming days and will remain highly sensitive to any further rainfall. Because groundwater flooding typically moves slower than surface water, these conditions could persist for several weeks or longer.

Timeline

The alert is effective immediately as of February 24, 2026. Officials are closely monitoring rainfall and groundwater levels. A formal update to this message is scheduled to be provided by 12:00 PM on March 3, 2026, or sooner if the situation changes significantly.