Flood Alert Issued for Groundwater Flooding in Hampshire and Wiltshire Villages

Alert Details

The Environment Agency has issued a Flood Alert (Severity Level 3) for the Solent and South Downs area. The alert is specifically for groundwater flooding, triggered by high groundwater levels following 12mm of rain recorded over the past week.

Affected Areas

The alert covers several communities across Hampshire and Wiltshire, including:

• Pitton
• West Tytherley
• Nether Wallop
• Broughton
• Over Wallop

What You Should Do

Residents in the affected areas are advised to prepare property resilience measures immediately. It is essential to ensure that any installed water pumps are in working order. The Environment Agency is closely monitoring the situation as conditions evolve.

Expected Conditions

Groundwater levels have stabilized in most villages, but levels in West Tytherley continue to rise slowly. Current impacts include:

• Nether Wallop and Pitton: Flooding is currently affecting cellars.
• Pitton: Ongoing impacts to the sewerage system are expected.
• Over Wallop: Garden flooding is currently occurring.
• West Tytherley: Flooding of cellars, roads, and land is expected to begin starting Monday, March 2, 2026.

Timeline

The alert was raised on March 2, 2026. While groundwater levels in most villages are expected to fall this week due to a mostly dry forecast from Monday, March 2, through Friday, March 6, levels in West Tytherley are predicted to rise for another week. This message will be updated by 6:00 PM on March 9, 2026, or sooner if the situation changes.