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Derwentwater at Lodore (4.5 km) is above its typical high. No official flood warning covers this location yet (the nearest is a flood alert 5.1 km away) — check GOV.UK flood warnings and keep watching river levels.
Updated 2026-10-10 23:44:06 UTC · Official GOV.UK warnings · Flood preparation & help guide
Thirlmere Reservoir is monitored by 1 Environment Agency river level station on the Thirlmere Reservoir, in Cumberland. Water levels are updated every 15 minutes.
The nearest watercourse on the river map is St John's Beck, about 120 m from the middle of Thirlmere Reservoir's gauges. It flows into the River Greta about 7.7 km downstream.
A gauge downstream shows water that has already passed this point; one upstream sees it first. Distances along the river are from the point on St John's Beck nearest the middle of Thirlmere Reservoir's gauges. From Ordnance Survey’s river map (OS Open Rivers), which leaves out small streams, ditches and culverts, so a nearer one may exist. This describes where water goes on the map; it says nothing about flooding at any address. Contains OS data © Crown copyright and database rights 2026.
Thirlmere Reservoir is monitored by 1 Environment Agency river level station on the Thirlmere Reservoir, in Cumberland. Water levels are updated every 15 minutes, providing real-time flood monitoring for the area.
The Thirlmere Reservoir is monitored by 1 station (Thirlmere Reservoir (Spillway level = 16.55m)). Each station records water levels continuously, with data synced to FloodRadar every 5 minutes.
There are 8 Environment Agency flood warning areas within 10km of Thirlmere Reservoir. When the EA issues a flood warning for any of these areas, it will appear on this page. These include: The Upper Derwent from Seathwaite to Derwent Water; Properties adjacent to the River Greta in The Forge area; Properties adjacent to the River Greta in the Penrith Road, Brigham Row, Lattrigg Close, Brundholme Gardens, Calvert's Bridge and Keswick Bridge areas; Low lying roads, residential and commercial properties in Keswick adjacent to the River Greta, including Penrith Road, Wordsworth Street, Greta Street and Blencathra Street.
If flooding is forecast in Thirlmere Reservoir, call Floodline on 0345 988 1188 for the latest information. Move valuables upstairs, turn off gas and electricity if safe to do so, and avoid walking or driving through flood water. Sign up for flood warnings on any station page above to receive email alerts when water levels rise. For emergency numbers, a preparation checklist and insurance guidance, see our flood help & preparation guide.
Thirlmere Reservoir gets about 2,719 mm of rain a year on average (wettest month December, 349 mm; driest May, 140 mm). That is 134% wetter than the UK as a whole, which averages 1,163 mm a year. See the rain gauges →
A thirty-year average for the area, not a forecast and not a flood risk on its own. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 2.2 km away. Average rainfall: HadUK-Grid v1.3.2, Met Office. Contains public sector information licensed under the Open Government Licence v3.0.
Floods whose mapped extent (EA Recorded Flood Outlines) reached within ~5 km of the town centre — most recent first. These are records of mapped extents, not a full list of floods. See them on the map →
Records, not floods: no outline on the record is not evidence a place has not flooded.
Current verdict: Warning. Derwentwater at Lodore (4.5 km) is above its typical high. No official flood warning covers this location yet (the nearest is a flood alert 5.1 km away) — check GOV.UK flood warnings and keep watching river levels.
Thirlmere Reservoir has river level monitoring on Thirlmere Reservoir — 1 monitoring station in total.
Use the GOV.UK Check for Flooding service (check-for-flooding.service.gov.uk) or call Floodline on 0345 988 1188 (24 hours). You can also set up free FloodRadar email or browser alerts from any station page above.
Follow official advice: move valuables and vehicles to safety, never walk or drive through flood water, turn off gas and electricity if safe, and check on vulnerable neighbours. See our flood preparation guide at floodradar.co.uk/flood-help.
Yes — the Environment Agency's Recorded Flood Outlines dataset shows 8 recorded flood extents around the town centre since 1703, most recently in 2020. That is a count of mapped extents, not of separate floods. Records, not floods: no outline on the record is not evidence a place has not flooded. See the flood history link below.
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