Flood Alert Issued for Lower Lee Tributaries
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.
A flood alert is in effect for the Lower Lee tributaries in Hertfordshire and North London due to forecast 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
A Flood alert (severity level 3) has been issued by the Environment Agency for the Lower Lee tributaries area. The alert was raised at 2026-08-26T20:22:46 and the message was last changed at 2026-08-26T20:22:00.
Affected Areas
The alert covers Barnet, Enfield, Essex, Greater London, Haringey, Hertfordshire, Redbridge, and Waltham Forest. Rivers and brooks involved include Ching Brook, Cobbins Brook, Nazeing Brook, Pymmes Brook, Salmons Brook, Turkey Brook, Small River Lee, Rags Brook, and Trinity Marsh Ditch.
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 is possible from the early hours of 27 August 2026 due to forecast heavy rain and storms overnight. Locations most affected will be low lying land, roads and riverside gardens. If the heaviest rain affects the Waltham Forest, Waltham Abbey, Waltham Cross, Barnet, Nazeing, Enfield, Chingford, Edmonton, Cheshunt or Tottenham areas there is the possibility that rivers could overtop their banks. Flooding from surface water could also occur.
Timeline
The alert is effective from the early hours of 27 August 2026. Further heavy rain and thunderstorms are forecast during the day on Thursday 27 August and into Friday 28 August. This message will be updated by 10:00AM on 27 August 2026 or as the situation changes. The agency is closely monitoring the situation and prepared to issue flood warnings if required.
Original source: Environment Agency Official Notice ↗
Related Flood Warnings
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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 (1,601 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.