A Flood Alert was issued for Groundwater flooding in Pitton, West Tytherley, Nether Wallop and Broughton in Hampshire, Wiltshire on 9th March 2026. Affected watercourses included the Groundwater.
During this event, FloodRadar monitoring gauges recorded notable rises. The Groundwater Level at Windwhistle rose 1.35m, peaking at 72.46m, while the Groundwater Level at Homington climbed 1.08m.
Environment Agency advice issued
Groundwater levels are still high across the villages covered by this flood alert area. Flooding is affecting cellars in Nether Wallop and Pitton. Sewerage system impacts are expected to be ongoing in Pitton. Garden flooding is ongoing in Over Wallop. In West Tytherley, groundwater is relatively stable around the level we expect cellar, road and land flooding to occur. 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
Monitoring gauges during this event
| Station | River | Rise | Peak |
|---|---|---|---|
| Windwhistle | Groundwater Level | +1.35m | 72.46m |
| Homington | Groundwater Level | +1.08m | 66.59m |
| Odstock | Groundwater Level | +0.89m | 60.71m |
| Oakley Industrial Estate | Groundwater Level | +0.57m | 92.24m |
| Stoford Cross | Groundwater Level | +0.54m | 69.35m |
| Clarendon | Groundwater Level | +0.46m | 72.73m |
| Chitterne Down | Groundwater Level | +0.43m | 99.06m |
| Queen Manor Farm | Groundwater Level | +0.28m | 70.33m |
| Hazelberry Plantation | Groundwater Level | +0.19m | 126.38m |