River Levels

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River Levels

Groundwater flooding in the Alton area

Message issued at 8:31am, Tuesday 24th March

This is an archived message. The status has changed more recently.

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Flooding possible. Be prepared.

Flood alert

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 31 March 2026, or as the situation changes.

Information supplied by the Environment Agency

This information last updated 8:31am, Tuesday 24th March.

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Most recent flood warnings and alerts for Groundwater flooding in the Alton area

Flood Warning Area Details

Communities at risk of groundwater flooding in the Alton, Chawton and Lower Farringdon areas

Region: Thames

Country: England

Counties covered: Hampshire

Watercourses covered: Groundwater

Area covered by this alert location

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).

Other Nearby Flood Warning Locations

River Wey at Alton
River Wey and Caker Stream at Alton and the River Wey at Upper Froyle and Bentley, Hampshire

No current or recent warnings.

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