There are no flood alerts in this area

Upper River Colne and Radlett Brook flood alert area

We'll update this page when there's a flood alert in the area, which means flooding to low lying land is possible.

Get flood warnings by phone, text or email.

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

Latest river, sea, groundwater and rainfall levels

There are around 3,500 measuring stations, and most are along main rivers and the coast. These levels can help you understand your flood risk now and over the next few days.

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

Share this page