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River Thames for Henley, Remenham, Medmenham and its tributaries

River Thames for Henley, Remenham and Medmenham; including Middle and Lower Assendon on the Assendon Stream, and Skirmett and Hambleden on the Hambledon Brook

Flood alert area River Thames, Assendon Stream, Hambledon Brook Buckinghamshire, Oxfordshire, Windsor and Maidenhead, Wokingham Thames

Map

Nearby Monitoring Stations

Hambleden Lock in this area
River Thames • Henley-On-Thames • 1.2 km (upstream)
structure gauge
0.12 m
22min ago
Marsh Lock in this area
River Thames • Harpsden • 2.4 km (downstream)
structure gauge
0.21 m
22min ago
Hurley Lock
River Thames • Hurley • 4.5 km (upstream)
structure gauge
0.07 m
22min ago
Shiplake Lock
River Thames • Lower Shiplake • 5.4 km (downstream)
structure gauge
0.15 m
22min ago
Temple Lock
River Thames • Marlow • 5.5 km (upstream)
structure gauge
0.06 m
22min ago
Marlow Lock
River Thames • Marlow • 7.5 km (upstream)
structure gauge
0.11 m
22min ago
Sonning Lock
River Thames • Sonning • 9.0 km (downstream)
structure gauge
0.25 m
22min ago
Caversham Lock
River Thames • Reading • 11.6 km (downstream)
structure gauge
0.17 m
22min ago
Reading
River Thames • Reading • 11.7 km (downstream)
Rising slightly · normal — Up 0.02 m since 12:30, rising slightly
6.74 m
22min ago
Boulters Lock
River Thames • Taplow • 12.1 km (upstream)
structure gauge
0.24 m
22min ago

Flood Event History (42)

28 Feb 2026 at 9:44am Flood Alert
There is no longer a threat of flooding, though standing water and debris may still remain.  Weather conditions are expected to improve and no further flooding is expected.   We will continue to monitor the situation and will issue further alerts or warnings if necessary.   Stay away from floodwat...
27 Feb 2026 at 2:55pm Flood Alert
High river levels today may lead to flooding. Flooding is possible on 27 February 2026. River levels are high but slowly declining on the River Thames. Flooding of low lying land and roads is expected to continue today, 27 February 2026, especially in the Henley on Thames, Remenham and Medmenham ...
26 Feb 2026 at 9:55am Flood Alert
High river levels today may lead to flooding. Flooding is possible on 26 February 2026 . River levels are high but slowly declining on the River Thames. Flooding of low lying land and roads is expected to continue today, 26 Feb 2026, especially in the Henley on Thames, Remenham and Medmenham areas...
25 Feb 2026 at 9:19am Flood Alert
High river levels today may lead to flooding. Flooding is possible on 25 February 2026. River levels are high but slowly declining on the River Thames. Flooding of low lying land and roads is expected to continue today, 25 February 2026, especially in the Henley on Thames, Remenham and Medmenham ...
23 Jan 2026 at 9:18am Flood Alert
26 Feb 2025 at 1:30pm Flood Alert
27 Jan 2025 at 8:06pm Flood Alert
6 Jan 2025 at 4:59pm Flood Alert
25 Nov 2024 at 2:32pm Flood Alert
25 Sep 2024 at 3:39pm Flood Alert
28 Mar 2024 at 6:08pm Flood Alert
13 Mar 2024 at 11:18am Flood Alert
8 Feb 2024 at 5:51pm Flood Alert
31 Dec 2023 at 6:26pm Flood Alert
12 Dec 2023 at 1:13pm Flood Alert
14 Nov 2023 at 4:47pm Flood Alert
3 Nov 2023 at 12:43pm Flood Alert
1 Apr 2023 at 1:18pm Flood Alert
13 Jan 2023 at 10:25am Flood Alert
28 Jan 2021 at 2:59pm Flood Alert
21 Jan 2021 at 5:40pm Flood Alert
26 Dec 2020 at 8:28am Flood Alert
24 Dec 2020 at 12:33pm Flood Alert
6 Oct 2020 at 2:51pm Flood Alert
18 Feb 2020 at 6:03am Flood Alert
15 Jan 2020 at 8:57am Flood Alert
16 Dec 2019 at 4:58pm Flood Alert
17 Nov 2019 at 5:14pm Flood Alert
31 Mar 2018 at 8:39pm Flood Alert
29 Mar 2016 at 1:34pm Flood Alert
10 Mar 2016 at 8:05am Flood Alert
8 Feb 2016 at 3:55pm Flood Alert
4 Jan 2016 at 7:59pm Flood Alert
15 Jan 2015 at 8:42pm Flood Alert
26 Apr 2014 at 12:35pm Flood Alert
24 Dec 2013 at 8:00am Flood Alert
17 Mar 2013 at 1:37pm Flood Alert
10 Feb 2013 at 8:38pm Flood Alert
27 Jan 2013 at 11:54am Flood Alert
20 Dec 2012 at 5:08pm Flood Alert
23 Nov 2012 at 12:33pm Flood Alert
18 Jan 2011 at 2:19pm Flood Alert

Related Flood Areas

River Thames for Henley, Remenham, and Medmenham
River Thames • Buckinghamshire, Oxfordshire, Windsor and Maidenhead, Wokingham

Official sources for this area

This area on the Environment Agency’s flood service →
Floodline quick dial: 171221 — call 0345 988 1188 and give that code for a recorded update on this area.
Area code: 061WAF23HenMed

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.