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Flooding possible. Be prepared.
Groundwater levels are high but stable at our Farringdon borehole near Alton and flooding of low-lying areas and roads is possible. We expect levels to remain high over the coming days and levels will remain sensitive to further rainfall.
Due to the nature of groundwater flooding, this situation could continue for several weeks or longer. We are closely monitoring rainfall and groundwater levels.
Residents are advised to prepare property resilience measures and ensure that pumps are working where they have been installed. Take particular care when driving through flood water both for your own safety and to prevent flooding to others. This message will be updated by 12:00PM, on the 10 March 2026, or as the situation changes.
Information supplied by the Environment Agency
This information last updated 3:43pm, Tuesday 3rd March.
Communities at risk of groundwater flooding in the Alton, Chawton and Lower Farringdon areas
Region: Thames
Country: England
Counties covered: Hampshire
Watercourses covered: Groundwater
The area bounded in blue on the map shows the area covered by flood alerts and warnings for Groundwater flooding in the Alton area.
Note: the area shown on the map is the area covered by flood alerts and warnings. It is not a live map of current flooding. The area covered broadly equates to the area where the risk of flooding in any year is greater than 1% (the "hundred year" flood risk).
No current or recent warnings.