River Cole, Dorcan Brook and South Marston Brook Flood alert 4:33pm, Tuesday 20th October 2026

Flooding possible. Be prepared.

Flood alert

High river levels may lead to flooding. River levels are still high on parts of the River Cole. Flooding of low lying land and roads is expected to continue overnight on 20 October 2026.

Flooding of low lying land and roads is expected, especially in the Covingham Drive area. Further rainfall is forecast throughout the night and tomorrow morning. We expect river levels will begin falling overnight and into tomorrow morning. Levels may rise again in response to further rainfall over the coming days.

We are monitoring rainfall and river levels.

Avoid low lying roads near rivers, which may be flooded. Refer to River Levels online for more information.

This message will be updated by 12:00 21 Oct 2026 or as the situation changes.

Information supplied by the Environment Agency

Message issued at 4:33pm, Tuesday 20th October 2026.

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Most recent flood warnings and alerts for River Cole, Dorcan Brook and South Marston Brook

Flood alert
Tue 20 Oct 2026, 4:33pm
Flood alert
Tue 20 Oct 2026, 8:57am
Warning no longer in force
Sun 30 Aug 2026, 9:17am
Flood alert
Sat 29 Aug 2026, 2:44pm
Warning no longer in force
Fri 13 Mar 2026, 8:48am
Flood alert
Thu 12 Mar 2026, 5:08pm
Warning no longer in force
Mon 9 Feb 2026, 9:23am
Flood alert
Sun 8 Feb 2026, 9:15am
Flood alert
Sat 7 Feb 2026, 4:16pm
Warning no longer in force
Thu 29 Jan 2026, 10:08am

Flood Warning Area Details

River Cole, Dorcan Brook and South Marston Brook for the East Swindon and South Marston areas down to above Buscot Wick

Region: Thames

Country: England

Counties covered: Oxfordshire, Swindon

Watercourses covered: River Cole

Area covered by this alert location

The area bounded in blue on the map shows the area covered by flood alerts and warnings for River Cole, Dorcan Brook and South Marston Brook.

Note: the area shown on the map is the area covered by flood alerts and warnings. It is not a live map of current flooding. The area covered broadly equates to the area where the risk of flooding in any year is greater than 1% (the "hundred year" flood risk).