Flood Warning Issued for Groundwater Flooding Along the Crane in Dorset and Hampshire

Alert Details

The Environment Agency has issued a Flood Warning (Severity Level 2) for groundwater flooding along the Crane. This alert indicates that high groundwater levels are expected to cause flooding in the Wessex area.

Affected Areas

The warning specifically covers regions within Dorset Council and Hampshire. Areas identified as being at risk include Pentridge and Cranborne. Monitoring at the West Woodyates borehole currently shows groundwater levels at 104.52m.

What You Should Do

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

• Prepare property resilience measures immediately.
• Ensure that any installed water pumps are functional and switched on.
• Consider alternative power sources for pumps in the event of a power outage.
• Be aware that septic tanks and sewer systems may experience inundation.
• Check cellars for signs of flooding.
• Exercise extreme caution when driving, as roads may be flooded or damaged by groundwater.

Expected Conditions

Groundwater levels in Cranborne Chase are currently falling slowly but remain high. While the region has experienced a few days of drier weather, additional rainfall is forecast to begin tomorrow, Thursday, February 26. This precipitation is expected to cause groundwater levels to rise again through the weekend.

Timeline

The alert was officially raised on March 5, 2026. The Environment Agency expects levels to remain high into the coming weekend following the forecast rainfall. A formal update to this message is scheduled to be provided by 2:00 PM on March 11, 2026, or sooner if the situation changes.