Flood Alert Issued for River Pinn in Greater London
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.
Environment Agency issues flood alert for River Pinn and Woodridings Stream due to forecast high river levels from heavy rain and storms.
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- Record type
- Flood Alert
- Affected area
- Hertfordshire and North London
- Issued
- August 26, 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: publication date is recent, but current status is not stored on this page. Check the issuing agency's live warning service before acting because warnings can be updated, narrowed, or cancelled.
Alert Details
Flood alert issued by the Environment Agency for River Pinn and Woodridings Stream. Severity: Flood alert (level 3). Alert raised at 2026-08-26T20:23:38.
Affected Areas
Greater London, Harrow, Hillingdon. Locations most affected may include Hatch End, Pinner, Ruislip, Ickenham, Hillingdon, and Uxbridge. Low lying land, roads, and riverside gardens along the River Pinn.
What You Should Do
Take care and avoid walking, cycling or driving through flood water. Avoid using low lying footpaths and any bridges near watercourses.
Expected Conditions
Forecast high river levels overnight may lead to flooding. Flooding possible from heavy rain and storms. Rivers could overtop banks if heaviest rain affects listed areas. Surface water flooding could occur where water gathers and flows off road surfaces. River levels expected to rise quickly in areas receiving heaviest rain.
Timeline
Flooding is possible from the early hours of 27 August 2026. Further heavy rain and thunderstorms forecast during the day on Thursday 27 August and into Friday 28 August. Message will be updated by 10:00AM on 27 August 2026 or as the situation changes. Agency is monitoring and prepared to issue flood warnings if required.
Original source: Environment Agency Official Notice ↗
Related Flood Warnings
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Flood Alert Issued for River Erewash Tributaries in Derbyshire and Nottinghamshire
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Nationwide notices with similar length or severity timing 8
Two Areazine-derived peer sets for this Environment Agency flood warning: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,239 characters here).
Similar severity timing
Same severity (medium) notices issued closest in time to August 26, 2026.
Frequently Asked Questions
Common questions about this Environment Agency flood warning.