Flood Alert Issued for Lower River Colne and Frays River Through February 16
This alert is no longer in effect.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 Lower River Colne and Frays River, warning of potential flooding in low-lying areas across multiple counties.
Read this weather record in 30 seconds
- Record type
- Flood Alert
- Affected area
- Hertfordshire and North London
- 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 Hertfordshire and North London.
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.
Original source: Environment Agency Official Notice ↗
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Common questions about this Environment Agency flood warning.