📢 Please take a minute to read this personal message from the creator of River Levels UK
Flooding possible. Be prepared.
Groundwater levels in the Candovers and Old Alresford are high but relatively stable. Flooding is expected to be affecting the ability of septic tanks to operate effectively. In Preston Candover and Old Alresford, a small number of properties will be experiencing cellar flooding. Mostly dry weather is forecast on Tuesday 10/03/2026, Wednesday 11/03/2026 and Saturday 14/03/2026. On Thursday 12/03/2026 and Friday 13/03/2026, further rain (between 20 and 25mm) is expected. Groundwater levels will remain high and may increase slightly over the next week. We are closely monitoring the situation. Residents in Preston Candover and Old Alresford are advised to prepare property resilience measures and ensure that pumps are working where they have been installed, in case groundwater levels begin to rise once more. This message will be updated by 18:00 17/03/2026.
Information supplied by the Environment Agency
This information last updated 4:51pm, Tuesday 10th March.
Areas at risk of groundwater flooding in Preston Candover, Chilton Candover, Brown Candover and Old Alresford in Hampshire
Region: Solent and South Downs
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 Candovers and Old Alresford.
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.
No current or recent warnings.