Flood Alert Issued for River Thame and Chalgrove Brook in Oxfordshire and Surrounding Counties
This alert is no longer in effect.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 Buckinghamshire, Hertfordshire, and Oxfordshire due to high river levels on the Chalgrove Brook.
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 at 9:03 AM on March 9, 2026, following reports of high river levels that may lead to flooding.
Affected Areas
The geographic scope of this alert includes parts of Buckinghamshire, Hertfordshire, and Oxfordshire. Specific concern is noted for the Chalgrove area, where flooding of low-lying land and roads remains possible. While the Chalgrove Brook is currently at high levels, the River Thame remains below the flood risk threshold at this time.
What You Should Do
Residents in the warning area are advised to avoid using low-lying footpaths and roads near rivers, as these areas may be flooded. Local residents should monitor current conditions by visiting River Levels Online for real-time updates.
Expected Conditions
High river levels are currently impacting the Chalgrove Brook through Chalgrove. The weather forecast for today and tomorrow indicates predominantly dry conditions with only light showers possible. Due to these conditions, the Environment Agency expects river levels to fall very slowly over the coming days.
Timeline
The alert was issued on the morning of March 9, 2026. Officials are monitoring rainfall and river levels closely and expect to provide an updated message by 12:00 PM on March 9, 2026, or sooner if the situation changes.
Original source: Environment Agency Official Notice ↗
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