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River levels have now fallen following heavy rainfall yesterday, Tuesday 26th March. We will continue to monitor the forecast and re-issue this alert if necessary. Further light rainfall is forecast today and heavy rainfall is forecast tomorrow, Thursday 28th March, which could cause river levels to rise again. We recommend that you avoid using low lying footpaths near local watercourses as there may still be standing water in some locations.
Our incident response staff are monitoring the situation and operating assets where necessary. We recommend that you remain aware of the forecast for the next 5 days.
Information supplied by the Environment Agency
This information last updated 9:32am, Wednesday 27th March 2024.
This page is a dedicated URL for a specific message issued at a particular time. You should not bookmark this page, as the current situation may have changed since this message was issued.
Warning no longer in force
Wed 27 Mar 2024, 9:32am
Flood alert
Tue 26 Mar 2024, 7:16pm
Warning no longer in force
Fri 5 Jan 2024, 8:35am
Flood alert
Thu 4 Jan 2024, 9:04pm
Warning no longer in force
Tue 5 Oct 2021, 9:05am
Flood alert
Mon 4 Oct 2021, 8:10pm
The Mimmshall Brook at Warrengate Road including South Mimms, Potters Bar, Brookmans Park and Welham Green
Region: Herts and North London
Country: England
Counties covered: Barnet, Greater London, Hertfordshire
Watercourses covered: Mimmshall Brook
The area bounded in blue on the map shows the area covered by flood alerts and warnings for Mimmshall 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).
No current or recent warnings.
No current or recent warnings.
Recent warnings no longer in force.
No current or recent warnings.
No current or recent warnings.