A Flood Alert was issued for Groundwater flooding in Twyford and Hensting in Hampshire on 30th March 2026. Affected watercourses included the Groundwater.
During this event, FloodRadar monitoring gauges recorded notable rises. The Groundwater Level at Clarendon rose 0.27m, peaking at 70.15m, while the River Itchen at Durngate climbed 0.06m.
Environment Agency advice issued
Groundwater levels in Twyford and Hensting are high but slowly falling. Flooding is expected to be affecting cellars of isolated properties in Twyford and Hensting. Only small amounts of rain are forecast from Monday 30/03/2026 to Friday 03/04/2026. Groundwater levels will continue to slowly fall during the next week. If the weather forecast remains favourable next week, this Flood Alert will be removed. We are closely monitoring the situation. Residents are advised to ensure that pumps are working where they have been installed. This message will be updated by 18:00 on 07/04/2026.
Monitoring gauges during this event
| Station | River | Rise | Peak |
|---|---|---|---|
| Clarendon | Groundwater Level | +0.27m | 70.15m |
| Durngate | River Itchen | +0.06m | 37.10m |