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Flood Warning: River Thame, Horsenden Stream and Chalgrove Brook

Message Last Updated:
2026-03-14 17:02:00

Severity Last Changed:
2026-01-09 16:10:00

High river levels may lead to flooding.



River levels are high on the Chalgrove Brook through Chalgrove. River levels along the River Thame are currently below the flood risk threshold. Flooding of low lying land and roads in the Chalgrove area remains possible today, 14 March 2026. This evening and overnight is forecast to be mostly dry. Further rain, some of which could be heavy, is forecast for Sunday. We expect levels to remain high over the coming days. River levels are sensitive to further rainfall.



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 11:00AM on 15 March 2026, or as the situation changes.