Flood Alert Issued for Chertsey Bourne Affecting Surrey and Berkshire Areas

Source: Environment Agency · Surrey and Berkshire

This alert is no longer in effect.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 Chertsey Bourne, warning that high river levels may lead to flooding of low-lying land and roads through the coming days.

Read this weather record in 30 seconds

Record type
Flood Alert
Affected area
Surrey and Berkshire
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 Surrey and Berkshire.

Alert Details

The Environment Agency has issued a flood alert (Severity Level 3) for the Chertsey Bourne area within the Thames region. The alert was officially raised on March 4, 2026, due to high river levels.

Affected Areas

The geographic scope of this alert includes Bracknell Forest, Surrey, and Windsor and Maidenhead. Specific areas of concern include low-lying land and roads in Chertsey situated close to the River Bourne. The alert specifically mentions the Chertsey Bourne and The Moat.

What You Should Do

Residents are advised to avoid using low-lying footpaths and any bridges located near local watercourses. The Environment Agency recommends checking river levels online for the most current updates on the situation.

Expected Conditions

River levels are currently falling but remain high on the Chertsey Bourne. Flooding of low-lying land and roads is expected to continue throughout Wednesday, March 4, 2026. While conditions are expected to remain dry today and tomorrow, river levels are projected to stay high over the next several days.

Timeline

The alert was issued at 6:17 PM on March 4, 2026. High river levels are expected to persist for the next few days. The Environment Agency will provide an update on this situation by 8:00 PM on March 5, 2026, or sooner if conditions change significantly.

Original source: Environment Agency Official Notice ↗

All Flood Warnings →

Frequently Asked Questions

Common questions about this Environment Agency flood warning.

What is this Environment Agency flood warning about?
The Environment Agency has issued a flood alert for the Chertsey Bourne, warning that high river levels may lead to flooding of low-lying land and roads through the coming days.
Which agency issued this alert?
This alert was issued by Environment Agency. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "medium" severity. Stay informed and follow agency guidance.
What area is affected?
This alert affects Surrey and Berkshire. Check with Environment Agency for the most current geographic scope.
Where can I find more Flood Warnings updates?
Browse the full Flood Warnings feed on Areazine at areazine.com/uk/floods/ for the latest updates from Environment Agency and other agencies.