Flood Alert Issued for Groundwater in Vernham Dean, Upton, and Bourne Valley
This alert is no longer in effect.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 Hampshire's Bourne Valley as high groundwater levels affect cellars and septic tanks in Upton.
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- Record type
- Flood Alert
- Affected area
- Hampshire
- 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.
Alert Details
The Environment Agency has issued a Flood Alert for groundwater flooding in the Solent and South Downs area. The alert was raised following high groundwater levels recorded in the Bourne Valley region.
Affected Areas
The alert covers several locations within Hampshire, specifically:
- Vernham Dean
- Upton
- The Bourne Valley
- Hurstbourne Tarrant
- Stoke
- St Mary Bourne
What You Should Do
Residents across the Bourne Valley are advised to take the following actions:
- Prepare property resilience measures to protect against water ingress.
- Ensure that any installed pumps are in working order in case levels begin to rise again.
- Monitor septic tanks, as they may struggle to operate properly due to the high water table.
Expected Conditions
Groundwater levels in the Bourne Valley are currently high. In Upton, levels are reported as high but steady, with flooding already affecting a small number of cellars. At the borehole in Vernham Dean, levels peaked on Wednesday, February 25, 2026, and have since fallen by 29cm. While septic tanks are struggling, no property impacts are currently expected in Vernham Dean, Hurstbourne Tarrant, Stoke, or St Mary Bourne.
Timeline
The alert was issued on March 3, 2026. Mostly dry weather is forecast from Tuesday, March 3, through Saturday, March 7, 2026, which should allow groundwater levels to continue a slow decline over the next week. The Environment Agency is monitoring the situation closely and will provide an update by 18:00 on March 10, 2026.
Original source: Environment Agency Official Notice ↗
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