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This is an archived message. The status has changed more recently.
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 Lambourn 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 prepare 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 12:00PM on the 24 March 2026, or as the situation changes.
Information supplied by the Environment Agency
This information last updated 7:51am, Tuesday 17th March.
This page is a dedicated URL for a specific message issued at a particular time. You should not bookmark this page, as the current situation may have changed since this message was issued.
Warning no longer in force
Tue 14 Apr 2026, 11:18am
Flood alert
Tue 7 Apr 2026, 11:28am
Flood alert
Tue 31 Mar 2026, 3:20pm
Flood alert
Tue 24 Mar 2026, 7:43am
Flood alert
Tue 17 Mar 2026, 7:51am
Flood alert
Tue 10 Mar 2026, 9:11am
Flood alert
Sun 8 Mar 2026, 9:15am
Flood alert
Sun 8 Mar 2026, 8:28am
Flood alert
Tue 3 Mar 2026, 11:24am
Flood alert
Tue 24 Feb 2026, 11:37am
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.
No current or recent warnings.
No current or recent warnings.