River Thame, Horsenden Stream and Chalgrove Brook

Flooding possible. Be prepared.

Flood alert

High river levels may lead to flooding.

River levels are high on parts of the River Thame. Flooding of low lying land and roads is expected to continue today, 12 February 2026, including in the Aylesbury, Thame, Stadhampton, and Dorchester areas. Further rain is forecast over the next 24 hours, which has the potential to be heavy at times. We expect river levels to remain high over the coming days.

We are monitoring rainfall and river levels. Avoid low lying footpaths and roads near rivers, which may be flooded. Go to River Levels online for updates on current river levels.

This message will be updated by 12:00PM on the 13 February 2026, or as the situation changes.

Information supplied by the Environment Agency

This information last updated 11:55am, Thursday 12th February.

Flood Warning Area Details

River Thame from Marsworth to Dorchester including, Long Marston, Rowsham, North Aylesbury, Cuddington, Thame, Ickford, Wheatley, Drayton St Leonard, Overy, the Horsenden Stream at Princes Risborough and the Chalgrove Brook at Chalgrove and Stadhampt

Region: Thames

Country: England

Counties covered: Buckinghamshire, Hertfordshire, Oxfordshire

Watercourses covered: River Thame, Horsenden Stream, Chalgrove Brook

Area covered by this alert location

The area bounded in blue on the map shows the area covered by flood alerts and warnings for River Thame, Horsenden Stream and Chalgrove Brook.

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).