We have only been collating detailed flood messages since May 2017.
Each Flood Warning may have multiple updates. The messages listed below may therefore be greater than the number of alerts detailed in the Flood Warning table above.
Flood Warning issued on 18 Jun 2021 15:54
River levels have been rising rapidly on the Radlett and Borehamwood Brooks at Borehamwood as a result of heavy rainfall. Flooding of property is possible from 4pm this afternoon, Friday 18 June. Flooding to low lying land, roads and riverside gardens is possible.
Further rainfall is forecast this evening and river levels may remain high, before receding later tonight.
We are closely monitoring the situation. Our incident response staff are monitoring rainfall and river levels and are checking rivers for blockages.
Please monitor local water levels and weather conditions. Consider putting your flood plan into action. You should avoid walking, cycling or driving through flood water.
This message will be updated this evening, Friday 18 June, or as the situation changes.