Groundwater Flood Alert Issued for Hambledon, Hampshire

Alert Details

The Environment Agency has issued a flood alert for groundwater flooding in Hambledon (Area ID: 065FAG013). This alert was raised on March 11, 2026, due to high groundwater levels in the Solent and South Downs region.

Affected Areas

The alert specifically covers the village of Hambledon in Hampshire. Within the village, flooding is expected to affect cellars in East Street and West Street. Additionally, impacts to the local sewerage system are expected to be ongoing.

What You Should Do

Residents in the warning area are advised to prepare property resilience measures immediately. If you have a water pump installed, ensure that it is in good working order. The Environment Agency is currently monitoring the situation and is in communication with the Hambledon Flood Action Group.

Expected Conditions

Groundwater levels at the Whitedale Farm borehole are currently high but have shown a slow decline, falling 1.8m over the last week. However, between 15mm and 20mm of rain is forecast to fall between Thursday, March 12, and Friday, March 13, 2026. If this heavy rain affects the area, existing flooding impacts will likely be prolonged. Drier weather is anticipated to return over the weekend.

Timeline

The alert was issued at 13:24 on March 11, 2026. The forecast rain is expected from Thursday into Friday. The Environment Agency will provide an updated message regarding these conditions by 18:00 on March 18, 2026.