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Flooding possible. Be prepared.
High groundwater levels may lead to flooding. Flooding is possible.
Groundwater levels are falling very slowly at our Longacre borehole in the Lambourne Valley. We expect levels to remain high over the next few weeks and levels will remain sensitive to further sustained rainfall. Due to the nature of groundwater flooding, this situation could continue for several weeks or longer.
We are closely monitoring rainfall and groundwater levels.
Residents are advised to consider property resilience measures and ensure that pumps are working where they have been installed. Take particular care when driving through flood water both for your own safety and to prevent flooding to others.
This message will be updated by 12:00 PM, on the 31 March 2026, or as the situation changes.
Information supplied by the Environment Agency
This information last updated 7:43am, Tuesday 24th March.
Communities at risk of groundwater flooding in the Lambourn area
Region: Thames
Country: England
Counties covered: Oxfordshire, West Berkshire
Watercourses covered: Groundwater
The area bounded in blue on the map shows the area covered by flood alerts and warnings for Groundwater flooding in the Lambourn Valley catchment.
Note: the area shown on the map is the area covered by flood alerts and warnings. It is not a live map of current flooding. The area covered broadly equates to the area where the risk of flooding in any year is greater than 1% (the "hundred year" flood risk).
No current or recent warnings.
No current or recent warnings.
Recent warnings no longer in force.
No current or recent warnings.