Skip to main content

This is a new service – your feedback will help us to improve it.

Flooding is possible - be prepared

Flood alert for Upper River Colne and Radlett Brook

Get flood warnings by phone, text or email

River levels are high on the Radlett Brook, Colne, and Mimmshall Brook due to heavy rainfall.

Flooding to low lying land and roads will continue to affect locations particularly around Waterside, Lowbell Lane, London Colney and Warrengate Road on Sunday 24th November.

Further rainfall is forecast into Monday.

We are monitoring rainfall and river levels and are checking rivers for blockages in the area.

Avoid using low lying footpaths and any bridges near local watercourses and do not attempt to walk or drive through flood water.

This message will be updated by 6pm on Sunday 24th November, or as the situation changes.

Flood alert area: The Upper River Colne and Radlett Brook at Colney Heath, London Colney, Borehamwood and Radlett.

Give feedback on this flood warning information

Find a river, sea, groundwater or rainfall level in this area