Flood Alert Issued for Denmead, Hampshire Due to High Groundwater Levels
This alert is no longer in effect.
Environment Agency issued it on April 6, 2026, 4 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this Environment Agency flood warning directly from Environment Agency's official public data feed. See our methodology for full source attribution and refresh cadence.
The Environment Agency has issued a flood alert for Denmead as high groundwater levels cause surface flooding on local roads and threaten sewage network operations.
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- Record type
- Flood Alert
- Affected area
- Hampshire, United Kingdom
- Issued
- April 6, 2026
- Issuing authority
- Environment Agency
Flood notices turn on location and timing. Treat the named area as this record's scope; do not assume nearby counties, parishes, or waterways were included.
Record status: historical. It was issued 4 months ago; use the issuing agency's live warning service for current conditions in Hampshire, United Kingdom.
Alert Details
The Environment Agency has issued a flood alert for groundwater flooding in Denmead (Area ID: 065FAG014). The alert was raised following observations of high groundwater levels in the Solent and South Downs region.
Affected Areas
The alert is specifically focused on Denmead in the county of Hampshire. Localized flooding has been reported with water flowing into the road at Anmore Road and Mill Close. Monitoring is currently focused on the borehole levels at Rookwood Farm.
What You Should Do
Residents in the warning area are advised to take the following precautions:
- Prepare property resilience measures to protect against water ingress.
- Ensure that any installed basement or flood pumps are in working order and operational.
- Be aware that high groundwater levels could affect the sewage network, potentially preventing it from operating effectively.
Expected Conditions
Groundwater levels at the Rookwood Farm borehole peaked on Saturday, February 28, 2026, and have since fallen by 25cm. While levels are slowly falling, they remain high. The weather forecast indicates only small amounts of rain are expected from Thursday, March 5, 2026, to Monday, March 9, 2026, which should allow groundwater levels to continue their slow decline throughout the week.
Timeline
The alert was officially issued at 3:00 PM on March 5, 2026. The Environment Agency is closely monitoring the situation and expects to provide an updated message by 6:00 PM on March 12, 2026.
Original source: Environment Agency Official Notice ↗
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