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River Thames from Mapledurham to Sonning

River Thames from Mapledurham to Sonning, including Mapledurham, Reading, Caversham, Playhatch and Sonning

Flood alert area River Thames Oxfordshire, Reading, West Berkshire, Wokingham Thames

Map

Nearby Monitoring Stations

Caversham Lock in this area
River Thames • Reading • 1.2 km (downstream)
structure gauge
0.19 m
33min ago
Reading in this area
River Thames • Reading • 1.3 km (downstream)
Rising slightly · normal — Up 0.02 m since 12:30, rising slightly
6.74 m
33min ago
Sonning Lock in this area
River Thames • Sonning • 2.9 km (downstream)
structure gauge
0.26 m
33min ago
Mapledurham Lock
River Thames • Mapledurham • 5.8 km (downstream)
structure gauge
0.08 m
33min ago
Shiplake Lock
River Thames • Lower Shiplake • 6.0 km (downstream)
structure gauge
0.14 m
33min ago
Marsh Lock
River Thames • Harpsden • 8.2 km (downstream)
structure gauge
0.22 m
33min ago
Whitchurch Lock
River Thames • Pangbourne • 9.1 km (upstream)
structure gauge
0.10 m
33min ago
Hambleden Lock
River Thames • Henley-On-Thames • 11.5 km (upstream)
structure gauge
0.12 m
33min ago
Hurley Lock
River Thames • Hurley • 13.7 km (upstream)
structure gauge
0.07 m
33min ago
Cleeve Lock
River Thames • Goring • 13.9 km (upstream)
structure gauge
0.13 m
33min ago

Flood Event History (47)

28 Feb 2026 at 1:18pm Flood Alert
There is no longer a threat of flooding, though standing water and debris may still remain.  Further rainfall is forecast but no further flooding is expected.   We will continue to monitor the situation and will issue further alerts or warnings if necessary.   Continue to take care on waterside ro...
28 Feb 2026 at 10:39am Flood Alert
High river levels may lead to flooding. River levels remain high but are falling slowly on the River Thames from Mapledurham to Sonning. Flooding of low lying land and roads is expected to continue today 28 February 2026, especially in the Sonning area. The forecast is for some further light rain ...
27 Feb 2026 at 10:20am Flood Alert
High river levels may lead to flooding. River levels remain high but are falling slowly on the River Thames from Mapledurham to Sonning. Flooding of low lying land and roads is expected to continue today 27 February 2026, especially in the Sonning area. The forecast is for rain overnight tonight, ...
26 Feb 2026 at 12:14pm Flood Alert
High river levels may lead to flooding. River levels are high on the River Thames from Mapledurham to Sonning. Flooding of low lying land and roads is expected to continue today 26 February 2026, especially in the Sonning area. The forecast is for some rain overnight tonight and further rain tomor...
25 Feb 2026 at 9:26am Flood Alert
High river levels may lead to flooding. River levels are high on the River Thames from Mapledurham to Sonning. Flooding of low lying land and roads is expected to continue today, especially in the Sonning area. The forecast is predominantly dry today with rain tomorrow. Levels are stabilising in ...
23 Jan 2026 at 12:49pm Flood Alert
28 Jan 2025 at 9:25am Flood Alert
6 Jan 2025 at 6:54pm Flood Alert
8 Dec 2024 at 10:55am Flood Alert
7 Dec 2024 at 6:18pm Flood Alert
25 Nov 2024 at 2:05pm Flood Alert
25 Sep 2024 at 10:53am Flood Alert
29 Mar 2024 at 11:10am Flood Alert
9 Feb 2024 at 12:00pm Flood Alert
31 Dec 2023 at 8:11pm Flood Alert
12 Dec 2023 at 3:58pm Flood Alert
1 Apr 2023 at 8:44am Flood Alert
12 Jan 2023 at 10:34pm Flood Alert
2 Feb 2021 at 8:58pm Flood Alert
28 Jan 2021 at 6:47pm Flood Alert
21 Jan 2021 at 6:20pm Flood Alert
24 Dec 2020 at 2:40pm Flood Alert
6 Oct 2020 at 5:08pm Flood Alert
16 Feb 2020 at 9:22am Flood Alert
15 Jan 2020 at 1:29pm Flood Alert
18 Dec 2019 at 7:30pm Flood Alert
16 Dec 2019 at 12:01pm Flood Alert
14 Nov 2019 at 11:05am Flood Alert
2 Apr 2018 at 7:02pm Flood Alert
10 Mar 2016 at 7:33am Flood Alert
9 Feb 2016 at 1:04pm Flood Alert
11 Jan 2016 at 3:30pm Flood Alert
26 Apr 2014 at 7:32pm Flood Alert
24 Dec 2013 at 7:27am Flood Alert
23 Mar 2013 at 5:01pm Flood Alert
17 Mar 2013 at 1:28pm Flood Alert
11 Feb 2013 at 9:47am Flood Alert
27 Jan 2013 at 11:37am Flood Alert
20 Dec 2012 at 9:55pm Flood Alert
22 Nov 2012 at 10:50am Flood Alert
5 Nov 2012 at 12:30pm Flood Alert
30 Apr 2012 at 3:59pm Flood Alert
18 Jan 2011 at 2:03pm Flood Alert
28 Feb 2010 at 9:14pm Flood Alert
17 Jan 2010 at 8:15am Flood Alert
31 Dec 2009 at 4:14pm Flood Alert
10 Feb 2009 at 7:49am Flood Alert

Related Flood Areas

Areas of Chertsey closest to the Chertsey Bourne
River Thames • Surrey
Coast from Dartford to Allhallows
River Thames • Bexley, Greater London, Kent, Medway
Dartford, Crayford and Greenhithe
River Thames • Bexley, Greater London, Kent
Gravesend and Northfleet
River Thames • Kent
Moorings and properties closest to the River Thames between Maidenhead, Windsor and Eton
River Thames • Buckinghamshire, Slough, Windsor and Maidenhead
North Kent Marshes between Shorne Marsh and Allhallows
River Thames • Kent, Medway
Properties closest to the River Thames at Datchet from Black Potts Bridge to Albert Bridge
River Thames • Windsor and Maidenhead
Properties closest to the River Thames at Old Windsor, from Friday Island to Magna Carta Island
River Thames • Surrey, Windsor and Maidenhead
Properties closest to the River Thames at Sunbury
River Thames • Surrey
Properties closest to the River Thames at Wraysbury from Old Windsor Weir to Magna Carta Island
River Thames • Surrey, Windsor and Maidenhead
Properties closest to the River Thames from All Saints Church, Bisham to Little Marlow
River Thames • Buckinghamshire, Windsor and Maidenhead
Properties closest to the River Thames from Littleton Lane, Shepperton Green to Shepperton Lock
River Thames • Surrey

Official sources for this area

This area on the Environment Agency’s flood service →
Floodline quick dial: 171216 — call 0345 988 1188 and give that code for a recorded update on this area.
Area code: 061WAF23RdngSonn

Live warnings and area boundaries are the Environment Agency’s and the EA is the authority on them. Contains public sector information licensed under the Open Government Licence v3.0. This area in the EA’s own data.