Flood Alert Issued for Colne Brook at Iver and Colnbrook

Source: Environment Agency · South East England and Greater London

This alert is no longer in effect.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 Colne Brook area following overnight rainfall, with low-lying land and roads at risk of flooding on February 16.

Read this weather record in 30 seconds

Record type
Flood Alert
Affected area
South East England and Greater 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 South East England and Greater London.

Alert Details

The Environment Agency has issued a flood alert for the Colne Brook at Iver and Colnbrook. The alert was officially raised at 8:44 AM on February 16, 2026, categorized as a severity level 3 alert.

Affected Areas

The alert covers a broad geographic region including Buckinghamshire, Greater London, Hillingdon, Slough, Surrey, and Windsor and Maidenhead. Specific locations most likely to be affected by high river levels include:

  • Colnbrook Village
  • Poyle
  • Albany Park
  • High Street
  • Mill Street
  • Fawsley Close
  • Myrtle Close

What You Should Do

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

  • Avoid using low-lying footpaths near local watercourses.
  • Do not use bridges located near the Colne Brook.
  • Monitor local weather reports and river level updates.

Expected Conditions

High river levels on the Colne Brook are expected today, February 16, 2026. This condition follows rainfall that occurred overnight on February 15, 2026. The primary threat is the flooding of low-lying land and roads situated near the river.

Timeline

The alert is effective immediately as of February 16, 2026. The Environment Agency is closely monitoring the situation and expects to provide an update by 5:00 PM on February 16, 2026, or earlier 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 Colne Brook area following overnight rainfall, with low-lying land and roads at risk of flooding on February 16.
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 South East England and Greater London. 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.