Flood Warning Issued for Upper Avon Valley and Nine Mile River Due to High Groundwater
This alert is no longer in effect.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 warning for Wiltshire as high groundwater levels on the Salisbury Plain threaten properties and roads in the upper Avon valley.
Read this weather record in 30 seconds
- Record type
- Flood Warning
- Affected area
- Wiltshire, 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 Wiltshire, England.
Alert Details
The Environment Agency has issued a Flood Warning (Severity Level 2) for groundwater flooding in the Wessex area. The alert was officially raised on February 24, 2026, at 2:50 PM GMT due to sustained high groundwater levels on the Salisbury Plain.
Affected Areas
The warning covers specific geographic regions in Wiltshire, including:
- Upper Avon Valley
- Nine Mile River
What You Should Do
Residents in the warning area are advised to take immediate action to protect their property:
- Property Resilience: Prepare and deploy flood resilience measures.
- Pump Maintenance: Ensure that all installed pumps are working and switched on.
- Power Backup: Consider alternative power sources in case of potential power cuts.
- Travel Safety: Take particular care when driving, as flooding of roads is expected.
- Sanitation: Be aware that residents may experience inundation of septic tanks and sewer systems.
Expected Conditions
Groundwater levels on the Salisbury Plain remain high and are reactive to further rainfall. Data from the Everleigh borehole shows a current level of 132.63m. Expected impacts include the flooding of cellars in affected areas and significant water on roadways.
Timeline
The alert is currently effective as of February 24, 2026. The Environment Agency is monitoring the situation closely and will provide an update by 4:00 PM on March 3, 2026, or sooner if conditions evolve.
Original source: Environment Agency Official Notice ↗
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Common questions about this Environment Agency flood warning.