Flood Alert Issued for River Thames at Thames Ditton Island

Source: Environment Agency · Greater London and Surrey

This alert is no longer in effect.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 River Thames at Thames Ditton Island, warning of potential flooding due to high tides and upstream river flows.

Read this weather record in 30 seconds

Record type
Flood Alert
Affected area
Greater London and Surrey
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 Greater London and Surrey.

Alert Details

The Environment Agency has issued a Flood Alert (Severity Level 3) for the River Thames at Thames Ditton Island. The alert was raised at 11:18 AM on February 16, 2026, due to a combination of high tides and high river flows upstream.

Affected Areas

Flooding is possible for low-lying land and roads, particularly in the Thames Ditton area. The geographic scope includes regions within Greater London, Richmond upon Thames, and Surrey.

What You Should Do

Residents and commuters are advised to take care and avoid walking, cycling, or driving through flood water. The Environment Agency recommends monitoring current river levels online for the latest updates.

Expected Conditions

High tides combined with high river flows are expected to cause elevated water levels. Further light rainfall is forecast over the next 48 hours, which is likely to keep river levels high for several days. Specific tide level predictions include:

  • February 16 at 3:00 PM: 5.89m
  • February 17 at 3:45 AM: 5.85m
  • February 17 at 4:00 PM: 5.91m

Timeline

The alert is currently in effect. High water levels are expected to persist through at least February 17. The Environment Agency will provide an update on the situation by 8:00 PM on February 17, 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 River Thames at Thames Ditton Island, warning of potential flooding due to high tides and upstream river flows.
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 Greater London and Surrey. 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.