Flood Alert Issued for River Thames from Mapledurham to Sonning
This alert is no longer in effect.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 the River Thames, warning of high river levels affecting Oxfordshire, Reading, West Berkshire, and Wokingham.
Read this weather record in 30 seconds
- Record type
- Flood Alert
- Affected area
- Thames Valley (Oxfordshire, Reading, West Berkshire, Wokingham)
- 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 Thames Valley (Oxfordshire, Reading, West Berkshire, Wokingham).
Alert Details
The Environment Agency has issued a flood alert for the River Thames from Mapledurham to Sonning. The alert was officially raised at 10:44 AM on February 15, 2026, in response to high river levels that pose a risk to low-lying areas.
Affected Areas
The alert covers the geographic scope of the Thames area, specifically impacting the following counties and regions:
- Oxfordshire
- Reading
- West Berkshire
- Wokingham
Flooding of low-lying land and roads is expected to continue throughout the day, particularly in the Sonning area.
What You Should Do
Residents and commuters in the affected regions are advised to take the following precautions:
- Avoid using low-lying footpaths and roads near rivers, as these areas are susceptible to flooding.
- Monitor local weather conditions and river levels.
- Consult "River Levels Online" for real-time updates on the situation.
Expected Conditions
River levels are currently high but are reported to be slowly falling along the stretch from Mapledurham to Sonning. However, further rainfall is forecast for today, February 15, which has the potential to be heavy at times. While levels are expected to continue their slow decline, they will remain high over the coming days, maintaining the risk of flooding for roads and land near the river.
Timeline
The alert is effective immediately as of February 15, 2026. The Environment Agency is monitoring rainfall and river levels and expects to provide an update by 12:00 PM on February 16, 2026, or sooner if conditions change significantly.
Original source: Environment Agency Official Notice ↗
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Common questions about this Environment Agency flood warning.