A Flood Alert was issued for River Ingrebourne at Harold Park and Hornchurch in Essex, Greater London, Havering on 24th October 2026. Affected watercourses included the Ingrebourne.
During this event, FloodRadar monitoring gauges recorded notable rises. The River Ingrebourne at Harold Park rose 0.59m, peaking at 1.61m, while the River Wid at Mountnessing climbed 0.56m.
Environment Agency advice issued
Rising river levels this evening may lead to flooding. Flooding is possible from the evening of Saturday 24 October due to heavy rainfall from Storm Austen and Boelo. Locations most affected will be low lying land and roads near rivers. Further heavy rain is forecast for this evening. We expect river levels to peak tonight and begin to fall during tomorrow morning, Sunday 25 October. We are monitoring rainfall and river levels . Take care and avoid walking, cycling or driving through flood water. This message will be updated by 10:00AM on Sunday 25 October or as the situation changes.
Monitoring gauges during this event
| Station | River | Rise | Peak |
|---|---|---|---|
| Harold Park | River Ingrebourne | +0.59m | 1.61m |
| Mountnessing | River Wid | +0.56m | 0.95m |
| Abridge | River Roding | +0.42m | 1.43m |
| Crayford | River Cray | +0.36m | 0.57m |
| Collier Row | River Rom | +0.35m | 0.73m |
| Romford | River Rom | +0.34m | 0.70m |
| Shonks Mill Bridge | River Roding | +0.30m | 0.39m |
| Gaynes Park | River Ingrebourne | +0.24m | 0.38m |
| Hornchurch_Bretons Farm | River Beam | +0.23m | 0.36m |
| Seven Kings Park | Loxford Water | +0.12m | 0.23m |