Flood Alert Issued for River Thame and Chalgrove Brook in Buckinghamshire and Oxfordshire

Alert Details

The Environment Agency has issued a flood alert for the River Thame, Horsenden Stream, and Chalgrove Brook. This alert was raised on February 16, 2026, at 10:55 AM following reports of high river levels in the Thames area.

Affected Areas

The alert covers geographic regions within Buckinghamshire, Hertfordshire, and Oxfordshire. Specific areas expected to see flooding of low-lying land and roads include:

• Aylesbury
• Thame
• Stadhampton
• Dorchester

What You Should Do

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

• Avoid using low-lying footpaths and roads near rivers, as these may be flooded.
• Monitor current river levels through the River Levels Online service.
• Stay informed as the situation develops.

Expected Conditions

River levels are currently high on parts of the River Thame. While the forecast for today, February 16, is predominantly dry, scattered showers are expected, some of which may be heavy. These conditions are likely to keep river levels high over the coming days, leading to continued flooding of low-lying land and roads.

Timeline

The alert is effective as of February 16, 2026. The Environment Agency expects river levels to remain elevated for several days. An update to this message is scheduled to be provided by 12:00 PM on February 17, 2026, or sooner if the situation changes.