Flood Alert Issued for Groundwater in Littleton, Kings Worthy, and Surrounding Hampshire Areas

Alert Details

The Environment Agency has issued a flood alert for groundwater flooding in the Solent and South Downs area. The alert was raised on February 23, 2026, following a period of high groundwater levels. While levels are currently falling slowly, the potential for flooding remains as further rainfall is forecast.

Affected Areas

The alert specifically covers the following locations in Hampshire:

• Littleton
• Headbourne
• Kings Worthy (specifically affecting Springvale Road)
• Martyr Worthy
• Easton
• Chilland

In Martyr Worthy, Chilland, and Easton, drainage ditches and culverts are reported to be full, restricting natural flow paths. Footpaths near the river may also be inaccessible to the public.

What You Should Do

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

• Prepare property resilience measures to protect against water ingress.
• Ensure that any installed basement or floor pumps are in good working order.
• Be aware that water may seep up through floors in some properties.
• Avoid using footpaths near the river that may be submerged or unstable.

Expected Conditions

Groundwater levels are currently high due to approximately 21mm of rain falling over the last week. Although levels are currently on a slow decline, the Environment Agency warns that drainage systems are at capacity.

Forecasts indicate dry weather will persist until Wednesday, February 25, 2026. However, between 15mm and 25mm of rain is expected on Thursday, February 26, and Friday, February 27. If heavy rain impacts the region, groundwater levels may rise again, potentially leading to cellar flooding in Littleton by next week.

Timeline

The alert is currently active as of February 23, 2026. A period of dry weather is expected through mid-week, followed by a return of rain on Thursday and Friday. The Environment Agency is closely monitoring the situation and will provide an update by 6:00 PM on March 2, 2026, or sooner if conditions change significantly.