Flood Alert Issued for River Thame, Horsenden Stream, and Chalgrove Brook in Thames Region
This alert is no longer in effect.
Environment Agency issued it on April 6, 2026, 4 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this Environment Agency flood warning directly from Environment Agency's official public data feed. See our methodology for full source attribution and refresh cadence.
The Environment Agency has issued a flood alert for parts of Buckinghamshire, Hertfordshire, and Oxfordshire as high river levels impact the River Thame and surrounding brooks.
Read this weather record in 30 seconds
- Record type
- Flood Alert
- Affected area
- Buckinghamshire, Hertfordshire, and Oxfordshire
- Issued
- April 6, 2026
- Issuing authority
- Environment Agency
Flood notices turn on location and timing. Treat the named area as this record's scope; do not assume nearby counties, parishes, or waterways were included.
Record status: historical. It was issued 4 months ago; use the issuing agency's live warning service for current conditions in Buckinghamshire, Hertfordshire, and Oxfordshire.
Alert Details
The Environment Agency has issued a Flood Alert (Severity Level 3) for the River Thame, Horsenden Stream, and Chalgrove Brook. The alert was officially raised on March 2, 2026, at 8:23 AM following reports of high river levels in the Thames area.
Affected Areas
The geographic scope of this alert includes the River Thame, Horsenden Stream, and Chalgrove Brook. The affected regions span across Buckinghamshire, Hertfordshire, and Oxfordshire. Specifically, river levels are reported as high on parts of the River Thame in the Dorchester area.
What You Should Do
Residents and visitors in the warning area are advised to take the following precautions:
- Avoid using low-lying footpaths and roads near rivers, as these areas are prone to flooding.
- Monitor local conditions and stay informed on changing water levels.
- Visit the River Levels Online service for the most current updates on river conditions.
Expected Conditions
Flooding of low-lying land and roads is expected to continue throughout Monday, March 2, 2026. While river levels remain high, the current meteorological forecast indicates a dry day today followed by several days of dry weather. Consequently, the Environment Agency expects river levels to begin decreasing over the coming days.
Timeline
The alert is currently in effect as of March 2, 2026. Officials are monitoring rainfall and river levels continuously. This message is scheduled to be updated by 12:00 PM on March 3, 2026, or sooner if the situation changes significantly.
Original source: Environment Agency Official Notice ↗
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Common questions about this Environment Agency flood warning.