Flood Alert Issued for Lower River Colne and Frays River Through February 16

Alert Details

The Environment Agency has issued a flood alert for the Lower River Colne and Frays River. This alert, classified as severity level 3, indicates that flooding is possible in the region due to sustained high river levels.

Affected Areas

The alert covers a broad geographic area including Buckinghamshire, Greater London, Hertfordshire, Hillingdon, Slough, Surrey, and Windsor and Maidenhead. Specific locations most likely to be affected include low-lying land and roads near the river in:

• Denham Colne
• Willow Bank
• Fountains Mill
• Clisbys Bridge
• West Drayton
• Yiewsley
• Poyle Trading Estate
• Stanwell Mill
• Staines Moor
• Pound Mill (Wraysbury)

What You Should Do

Residents and commuters in the affected areas are advised to take care and avoid walking, cycling, or driving through flood water. The Environment Agency recommends monitoring local conditions closely as the situation develops.

Expected Conditions

River levels remain high along the River Colne. These conditions may lead to the flooding of roads and low-lying land adjacent to the river. Agency officials are currently monitoring the situation to assess further risks to the surrounding infrastructure.

Timeline

The alert was officially raised at 4:41 PM on February 15, 2026. Flooding conditions are possible through the remainder of February 15 and into February 16, 2026. The Environment Agency expects to provide an update by 9:00 AM on February 16, 2026, or sooner if the situation changes significantly.