A Flood Alert was issued for Groundwater flooding in Twyford and Hensting in Hampshire on 9th March 2026. Affected watercourses included the Groundwater.
During this event, FloodRadar monitoring gauges recorded notable rises. The Groundwater Level at Clarendon rose 0.46m, peaking at 72.73m, 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 affecting cellars of a small number of properties in Twyford and Hensting. Water is flowing on Hensting Lane. Only a small amount of rain (between 10 and 20mm) is forecast to affect Hampshire between Monday 09/03/2026 and Friday 13/03/2026. Over the weekend and into next week, further unsettled weather is possible. Groundwater levels in Twyford and Hensting will continue falling this week, but could rise during the second half of March if further heavy rain affects the area. We are closely monitoring the situat
Monitoring gauges during this event
| Station | River | Rise | Peak |
|---|---|---|---|
| Clarendon | Groundwater Level | +0.46m | 72.73m |
| Durngate | River Itchen | +0.06m | 37.15m |