Flood Alert Issued for Groundwater Flooding in Denmead, Hampshire
This alert is no longer in effect.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 impact local roads and sewage systems, with heavy rain forecast for Thursday.
Read this weather record in 30 seconds
- Record type
- Flood Alert
- Affected area
- Hampshire, England
- 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, England.
Alert Details
The Environment Agency has issued a flood alert for groundwater flooding in Denmead. This alert was raised on March 11, 2026, following observations of high groundwater levels in the Solent and South Downs area.
Affected Areas
The alert specifically covers Denmead in the county of Hampshire. Within this region, water is expected to affect Anmore Road and Mill Close. High groundwater levels may also impact the effectiveness of the local sewage network.
What You Should Do
Residents in the affected areas are advised to take the following precautions:
- Prepare and implement property resilience measures.
- Ensure that any installed water pumps are in good working order.
- Monitor local conditions closely as heavy rain could prolong flooding impacts.
Expected Conditions
While groundwater levels at the Rookwood Farm borehole have fallen by 70cm over the last week, they remain high. A weather system is forecast to bring between 15mm and 20mm of rain to Hampshire starting Thursday, March 12, 2026, and continuing into Friday, March 13, 2026. Drier weather is anticipated over the following weekend. However, if heavy rain occurs, the ongoing flooding impacts in Denmead will be prolonged.
Timeline
The alert is currently effective as of March 11, 2026. The forecast rainfall is expected between Thursday (12/03/2026) and Friday (13/03/2026). The Environment Agency will monitor the situation and provides a scheduled update for this message by 18:00 on March 18, 2026.
Original source: Environment Agency Official Notice ↗
Related Flood Warnings
All Flood Warnings →Frequently Asked Questions
Common questions about this Environment Agency flood warning.