Flood Alert Issued for Chertsey Bourne Affecting Surrey, Bracknell Forest, and Windsor and Maidenhead

Alert Details

The Environment Agency has issued a Flood Alert (Severity Level 3) for the Chertsey Bourne. This alert indicates that flooding is possible and follows the removal of a more severe Flood Warning for areas closest to the river. High river levels are currently being monitored across the Thames area.

Affected Areas

The geographic scope of this alert includes the following regions and counties:

• Surrey
• Bracknell Forest
• Windsor and Maidenhead

Specific concern is noted for the Free Prae Road area, where flooding of low-lying ground and roads is expected. The alert covers the Chertsey Bourne and The Moat.

What You Should Do

Residents in the affected areas are advised to take the following precautions:

• Avoid low-lying roads near rivers, as these are most susceptible to flooding.
• Stay away from flood water, which can contain hidden dangers and hazards.
• Monitor local authorities and emergency services for updates as the situation evolves.

Expected Conditions

River levels are currently high and are expected to remain responsive to further precipitation. While the forecast for today, February 17, is dry, additional rainfall is expected tomorrow, February 18, 2026. These conditions are likely to keep river levels elevated for the next several days.

Timeline

The alert was officially raised at 10:03 AM on February 17, 2026. The Environment Agency is closely monitoring the situation and liaising with local authorities. This message is scheduled to be updated by 8:00 PM on February 18, 2026, or sooner if conditions change significantly.