Flood Alert Issued for Mansbridge and Riverside Park in Southampton
This alert is no longer in effect.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.
High tides and elevated river flows on the River Itchen have prompted a flood alert for Mansbridge and Riverside Park, with impacts expected on February 21, 2026.
Read this weather record in 30 seconds
- Record type
- Flood Alert
- Affected area
- Southampton, 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 Southampton, Hampshire.
Alert Details
The Environment Agency has issued a flood alert for the Solent and South Downs region, specifically targeting the River Itchen at Mansbridge and Riverside Park. The alert was raised on February 20, 2026, in response to high river levels and forecasted tidal activity.
Affected Areas
The geographic scope of this alert includes Mansbridge and Riverside Park within the county of Hampshire and the city of Southampton. Specific locations at risk include the access road and car parking areas near the White Swan Pub, the car garage at Mansbridge, and parts of Riverside Park. Water levels are also expected to be very high at Gaters Mill.
What You Should Do
Residents and business owners in the affected areas should consider activating any available flood protection products. This includes deploying defenses around the White Swan pub. The Environment Agency is currently monitoring rainfall and river levels and is coordinating with Southampton City Council regarding the operation of Woodmill.
Expected Conditions
Flooding is possible due to a combination of high tides and elevated river flow. On February 21, 2026, the early morning high tides (01:00 and 03:00) are expected to reach 4.74 metres Chart Datum (2.00mAOD). The afternoon high tides (13:15 and 15:15) are forecast to be higher, reaching 4.86 metres Chart Datum (2.12mAOD). While only a small amount of rain is forecast for the next five days, the flood risk will remain high until the River Itchen's flow decreases.
Timeline
The alert is effective immediately, with the primary threat occurring during the high tide cycles on February 21, 2026. High river levels are expected to persist over the next three days. The Environment Agency plans to provide an update on the situation by 19:00 on February 21, 2026.
Original source: Environment Agency Official Notice ↗
Related Flood Warnings
All Flood Warnings →Frequently Asked Questions
Common questions about this Environment Agency flood warning.