Flood warnings in England

Name: Flood warnings raised in England since 2006
Creator: Environment Agency
License: https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/

2 flood alerts in force

Flooding is possible where a flood alert is in force. Be prepared, and keep an eye on river levels nearby.

0Severe flood warningsSevere flooding. Danger to life.
0Flood warningsFlooding is expected. Immediate action required.
2Flood alertsFlooding is possible. Be prepared.

Checked against the Environment Agency at 21:28 UK time. We check every 15 minutes.

Where the 2 warnings are in force. Select a dot to read it.

Flood alerts 2Flooding is possible. Be prepared.

Flood alertTidal

Tidal Thames riverside from Putney Bridge to Teddington Weir

Greater London, Hammersmith and Fulham, Hounslow, Richmond upon Thames, WandsworthRiver Thames

Raised 19:12 today

High tides tomorrow morning may lead to flooding.

Read the full message

Flooding is possible from 02:15 AM to 06:15 AM on 12/09/2026.

The forecast high tide at Richmond is 4.60 mAOD at 4:15 AM on 12/09/2026.

We believe there is a possibility of flooding for Putney Embankment (SW15), Chiswick Mall and Strand on the Green (W4), Thames Bank at Mortlake (SW14), Ranelagh Drive (TW1), Friars Lane and Water Lane (TW9), Riverside and The Embankment at Twickenham, and the Towpath below Teddington Lock. Flooding of properties is not expected.

Astronomical tide levels are rising. The river flow at Teddington Weir is 6 cubic metres per second and is steady. We anticipate the flows to remain steady over the next few days.

We are closely monitoring the situation .

Take care and avoid walking, cycling or driving through flood water .

This message will be updated by 10:00AM on 12 September 2026 or as the situation changes.

Gauges nearby

Trowlock Island 4.48mAOD, normal, falling 5.2 km away Kingston 4.41mASD, normal, falling 6.2 km away Thames Ditton Island 4.38mAOD, below normal, falling 8.9 km away

Warned 907 times here since 2011 Area map and gauges

Flood alertTidal

Christchurch Harbour

Bournemouth, Christchurch and PooleEnglish Channel

Raised 11:41 today

High tides today may lead to flooding.

Read the full message

Flooding is possible from 7:30pm and 11:45pm on 11/09/2026.

The detailed tidal forecast for those who use it is for a peak level at Christchurch Harbour of 1.20mAODN at 9:45PM, 11th September 2026, with force 3 North Westerly winds. (mAODN is height above average sea level.).

We are closely monitoring the situation No operational flood gates will need be closed for this tide.

Take care and avoid walking, cycling or driving through flood water .

This message will be updated by 10:30AM on 12 September 2026 or as the situation changes.

Gauges nearby

Knapp Mill 0.37mASD, normal rising gently 2.3 km away Iford Bridge 0.9mAOD, normal rising 3.2 km away CHEWTON GLEN GS 0.02m3/s, no typical range, 5 h old 6.0 km away

Warned 326 times here since 2011 Area map and gauges

Flood warnings and alerts for River Mersey Uplands catchment including Hyde, Ashton-under-Lyne, Denton, Stalybridge and Glossop in 2013

2 warnings raised: 0 severe flood warnings, 0 flood warnings and 2 flood alerts.

2013 River Mersey Uplands catchment including Hyde, Ashton-under-Lyne, Denton, Stalybridge and Glossop Clear all

Warnings raised each year

Select a year to list its warnings.

Severe Flood warning Flood alert

0 2006’06 0 2007’07 0 2008’08 0 2009’09 0 2010’10 0 2011’11 0 2012’12 2 2013’13 0 2014’14 0 2015’15 0 2016’16 0 2017’17 0 2018’18 0 2019’19 0 2020’20 0 2021’21 0 2022’22 0 2023’23 0 2024’24 0 2025’25 0so far 2026’26

Where they were raised

Each dot is a group of warning areas; the bigger the dot, the more warnings.

By month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

This area

Map, gauges and current status for River Mersey Uplands catchment including Hyde, Ashton-under-Lyne, Denton, Stalybridge and Glossop

Newest first 1–2 of 2

Sun 27 Oct 2013 Flood alert River Mersey Uplands catchment including Hyde, Ashton-under-Lyne, Denton, Stalybridge and Glossop Barnsley, Cheshire East, Derbyshire, Oldham, Stockport, TamesideRiver Mersey
Sat 26 Jan 2013 Flood alert River Mersey Uplands catchment including Hyde, Ashton-under-Lyne, Denton, Stalybridge and Glossop Barnsley, Cheshire East, Derbyshire, Oldham, Stockport, TamesideRiver Mersey

What the three levels mean

Flood alert

Flooding is possible. Be prepared. Keep an eye on local river levels and forecasts, and get ready to move valuables and put flood protection in place.

Flood warning

Flooding is expected. Immediate action required. Move family, pets and valuables to safety, turn off gas, electricity and water if it is safe to, and put flood protection in place.

Severe flood warning

Severe flooding. Danger to life. Stay in a safe place with a means of escape, and follow the advice of the emergency services. Call 999 if you are in immediate danger.

Where this comes from. Warnings in force are the Environment Agency’s own, which we check every 15 minutes. They cover England only: for Wales see Natural Resources Wales, for Scotland SEPA Floodline, and for Northern Ireland nidirect.

The history is the Environment Agency’s record of every warning raised since 2006, which it publishes each quarter, joined to the warnings we have recorded live since. Each count is one warning or alert raised for one area; a warning that was later updated counts once. When a warning is removed that is not counted as a new warning. An area with no warnings on record can still flood.