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Groundwater flooding in Finchdean, Dean Lane End and Rowlands Castle
Areas at risk of groundwater flooding in Finchdean, Dean Lane End, Idsworth and Rowlands Castle
Groundwater
Hampshire, West Sussex
Solent and South Downs
Code: 065FAG015
Flood Alert
Active Warning
Raised: 2 Mar 2026 at 11:37am • Updated: 2 Mar 2026 at 11:37am
Groundwater levels at the borehole in Finchdean are very slowly falling. In the last week, the level has fallen by 9cm.
Flooding is expected to be affecting a small number of cellars in Finchdean, Dean Lane End and Rowlands Castle. Road flooding will be deep in all villages. Sewerage system impacts could also be possible. Mostly dry weather is forecast from Monday 02/03/2026 to Friday 06/03/2026. Groundwater levels will continue to slowly fall over the next week.
We are closely monitoring the situation.
Please do not walk or drive through flood water.
This message will be updated by 18:00 09/03/2026.
Nearby Monitoring Stations
Flood Event History (2)
2 Mar 2026 at 11:37am
Flood Alert
Groundwater levels at the borehole in Finchdean are very slowly falling. In the last week, the level has fallen by 9cm.
Flooding is expected to be affecting a small number of cellars in Finchdean, Dean Lane End and Rowlands Castle. Road flooding will be deep in all villages. Sewerage system impacts...
23 Feb 2026 at 1:54pm
Flood Alert
High groundwater levels may lead to flooding.
Flooding is possible , as a lot of rain (42mm) has fallen in the last week.
Groundwater levels at the borehole in Finchdean are relatively stable. The Idsworth and Chalton Lavants are both flowing. Road flooding is expected to be deep in all villages. ...
