A Flood Alert was issued for Fareham to Portchester in Hampshire, Portsmouth on 26th October 2026. Affected watercourses included the Portsmouth Harbour.
During this event, FloodRadar monitoring gauges recorded notable rises. The Tide at Portsmouth rose 4.48m, peaking at 2.54m, while the River Meon at Titchfield Canal climbed 0.68m.
Environment Agency advice issued
There is no longer a threat of flooding, though standing water and debris may still remain. Coastal conditions are expected to improve and no flooding is expected. We will continue to monitor the situation and work with emergency services and local authorities. Stay away from floodwater - it contains hidden dangers such as open manhole covers, sewage and chemicals.
Monitoring gauges during this event
| Station | River | Rise | Peak |
|---|---|---|---|
| Portsmouth | Tide | +4.48m | 2.54m |
| Titchfield Canal | River Meon | +0.68m | 2.18m |
| Browndown | River Alver | +0.67m | 1.21m |
| Titchfield | River Meon | +0.41m | 1.27m |
| North Fareham weir | River Wallington | +0.26m | 0.47m |
| Denmead | River Wallington | +0.25m | 33.60m |
| Wickham | River Meon | +0.09m | 18.69m |