River Levels

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River Levels

Groundwater flooding in the Alton area

Message issued at 10:09am, Tuesday 21st April

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 are declining at our Farringdon borehole near Alton.

Flooding of low-lying land and roads continues to be possible. We expect levels to continue to fall over the next few weeks in response to more settled weather. We are closely monitoring rainfall and groundwater levels.

Residents are advised to ensure property resilience measures are prepared and check 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 28 April 2026, or as the situation changes.

Information supplied by the Environment Agency

This information last updated 10:09am, Tuesday 21st April.

This page is a dedicated URL for a specific message issued at a particular time. You should not bookmark this page, as the current situation may have changed since this message was issued.

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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.

RiverLevels.uk is an independent website. It is not associated with the Environment Agency or any other supplier of river level information. All data used on this site is supplied under licence. For queries about the data, please contact the underlying supplier.

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