← Back
Water Level Easing
Easing — down from 0.70 at 16:00, now 0.67
0.67

Portinscale

Derwent
Derwent West Cumbria and Duddon catchment • Portinscale • Cumberland • ID: 751007 • Level
(1h ago) • 4 readings/hr • 224 views

Set water level alerts

Get notified about Portinscale — tick as many as you like, they all share the notify settings below.

1 person already gets alerts for this gauge.

⤴ Unusual rise — FloodRadar+Top 1% rise rate for this gauge.
Drag the line on the chart, or type a value: m
Quick pick:

Each one is saved as its own alert — pause or remove them individually any time.

Not an emergency service — if in danger call 999. Alerts rely on EA/SEPA/NRW data and are best-efforts. Terms

Current Level
0.674 m
▼ Easing
24h Max
0.720 m
24h Min
0.670 m
Typical Range
0.31 - 1.33
m
Highest Recorded
4.27 m
EA official record
4.27 in our data (since Jan 1976)
Current level is 16% of this
🚽 Sewage overflows nearby

Recent Water Levels

🌍 floodradar.co.uk
1 day

Recent Readings

Falling · -1 cm over 6h
08 Oct 01:30 ▲ +0.2 cm 0.674 m
08 Oct 01:15 ▬ steady 0.672 m
08 Oct 01:00 ▼ -0.1 cm 0.672 m
08 Oct 00:45 ▲ +0.3 cm 0.673 m
08 Oct 00:30 ▼ -0.7 cm 0.670 m
08 Oct 00:15 ▬ steady 0.677 m
08 Oct 00:00 ▲ +0.3 cm 0.677 m
07 Oct 23:45 ▼ -0.2 cm 0.674 m
07 Oct 23:30 ▼ -0.4 cm 0.676 m
07 Oct 22:30 ▲ +0.4 cm 0.680 m
07 Oct 22:15 ▼ -0.1 cm 0.676 m
07 Oct 22:00 ▼ -0.7 cm 0.677 m
07 Oct 21:45 ▲ +0.1 cm 0.684 m
07 Oct 21:30 ▼ -0.1 cm 0.683 m
07 Oct 21:15 ▼ -0.4 cm 0.684 m
07 Oct 21:00 ▲ +0.2 cm 0.688 m
07 Oct 20:45 ▼ -0.1 cm 0.686 m
07 Oct 20:30 ▼ -0.2 cm 0.687 m
07 Oct 20:15 ▲ +0.3 cm 0.689 m
07 Oct 20:00 0.686 m

Station Details

  • Monitoring Station: Portinscale
  • Watercourse: River Derwent
  • Nearest Town: Portinscale
  • County: Cumberland
  • Coordinates: 54°36'16"N 3°9'34"W (54.604556, -3.159541)
  • Open in: Google Maps · Apple Maps (opens your maps app)
  • Date Opened: 1 Jan 1976
  • Status: Active
  • Station Type: River level station
Technical details: references, datum, range, flow archive
  • Station Reference: 751007
  • RLOI id: 5174 (the EA's check-for-flooding station id)
  • EA Gauge ID: 751007-level-stage-i-15_min-m
  • Parameter: Level
  • Unit: m
  • Typical rise rate: 3 cm/hr (p95 sustained over 90 days)
  • Typical data delay: ~22 min (measured reading→publication lag)
  • Tidal: No
  • Lock / structure: No
  • Catchment Area: Derwent West Cumbria and Duddon
  • Typical Range: 0.307 – 1.327 m
  • Drainage Area: 235 km² upstream of this gauge
  • Flow Data: Daily mean flow (m³/s) to 6 Oct (2 days behind — the EA publishes each day's mean a day or two after it ends; unchecked, provisional) via EA Hydrology
  • EA Cross-check: 0.67 m (EA at 8 Oct 01:45)
  • Flow Archive: National River Flow Archive ↗

Geographic coordinates may reflect the access point for the gauge, and not the precise location in the watercourse that it is taking readings from.

Nearby Stations

Gauges connected to this river, and others nearby. A distance “by river” follows the river on the map; any other is in a straight line.

Connected upstream

Connected downstream

Same river system, separate branch

Nearby

Distances by river: OS Open Rivers. Contains OS data © Crown copyright and database rights 2026.

💧 Storm overflows upstream of this gauge

Storm overflows whose water reaches this gauge on the mapped river network, nearest first by distance along the river. The status is each water company's monitor: it says whether an overflow is discharging, not how much or what it contains.

7 storm overflows are traced upstream of this gauge, the nearest 1.3 km away along the river. 0 report discharging now, 7 report not discharging.

💧
United Utilities · into The River Greta · 1.3 km upstream along the river
54 spills · 63 hours in 2025
Not discharging now · last
💧
United Utilities · into River Greta · 3.0 km upstream along the river
0 spills · 0 hours in 2025
Not discharging now
💧
United Utilities · into River Greta · 3.4 km upstream along the river
1 spill · 0 hours in 2025
Not discharging now · last
💧
United Utilities · into River Derwent · 7.7 km upstream along the river
53 spills · 465 hours in 2025
Not discharging now · last
💧
United Utilities · into River Glenderamackin · 9.0 km upstream along the river
67 spills · 299 hours in 2025
Not discharging now · last
💧
United Utilities · into Gategill Beck · 10.8 km upstream along the river
53 spills · 104 hours in 2025
Not discharging now · last
💧
United Utilities · into Trib Stonethwaite Beck · 12.1 km upstream along the river
39 spills · 247 hours in 2025
Not discharging now · last

Nearby, connection not known

Within 6 km in a straight line, but the river map cannot say whether their water passes this gauge.

💧
United Utilities · into River Derwent · 120 m away in a straight line · too close to the gauge to say which side
6 spills · 9 hours in 2025
Not discharging now · last
💧
United Utilities · into Hallgarth Beck · 1.6 km away in a straight line · no mapped watercourse close enough to be sure
114 spills · 1,132 hours in 2025
Not discharging now · last

3 other overflows within 6 km are downstream of this gauge or on another branch of the river network, so they are not listed.

These are the water companies' monitor statuses; a spill does not by itself explain a change in the gauge level. River connections and distances are traced on OS Open Rivers (edition 2026-04), which leaves out many small channels. Explore the sewage map →

Contains OS data © Crown copyright and database rights 2026.

Rainfall & Weather

Loading rainfall and weather data...

How often this river runs high

In a typical year this gauge reaches its typical high of 1.33 m on about 31 days. This year so far: 5 days.

2026 5 days so far
2025 37 days, 4 of them high · 4 high
2024 25 days, 3 of them high · 3 high
2023 44 days, 5 of them high · 5 high
2022 19 days
2021 29 days, 9 of them high · 9 high
2020 47 days, 8 of them high · 8 high
2019 17 days, 3 of them high · 3 high
2018 8 days, 1 of them high · 1 high patchy data
2017 3 days patchy data

Counted from each day's highest reading. Days with missing or implausible readings are left out, so a year marked patchy may have run high more often than shown. The darker part is days above 2.05 m, the level this gauge tops only a few days a year.

Flood history near this gauge

Official Environment Agency warnings issued since 2008 for the 14 flood areas linked to this gauge (nearest 0.7 km away).

11severe warnings 205flood warnings 355flood alerts

Most recent flood warning: 28 Feb 2026 — Keswick Campsite

Year by year
YearSevereWarningsAlerts
2026 0 4 24
2025 0 10 20
2024 0 9 20
2023 0 15 17
2022 0 8 14
2021 0 13 17
2020 0 20 15
2019 0 14 20
2018 0 6 10
2017 0 10 21
2016 0 6 16
2015 11 27 24
2014 0 7 13
2013 0 5 16
2012 0 8 20
2011 0 9 16
2010 0 8 14
2009 0 15 24
2008 0 11 34

Warnings apply to a whole flood area, not necessarily this exact spot. Years before 2006 aren't covered by the EA's historic record. See also the Portinscale flood history.

Flood areas linked to this gauge

Flood warnings and alerts are issued for whole areas. These are the 14 areas linked to this gauge, nearest first.

Show 6 more

Catchment Character

🌊 Steep & flashy Steep catchment sheds rain quickly — expect fast, sharp rises after heavy rain.

Your catchment is all the land that drains rainfall into the river above this gauge. Its character — how steep, wet, wooded, urban or chalky that land is — decides how fast rain here turns into a rising river. A steep, bare or clay catchment is “flashy” (rises and falls quickly, floods easily); a flat, chalk or well-wooded one is slow and steady. The tiles below put numbers to that; the flow-duration curve reads left-to-right from the river’s typical high flows (Q5) down to its low flows (Q95) — a steep curve means a flashy river.

The physical character of the land that drains to this gauge, and how it shapes its flood response — from the National River Flow Archive (UKCEH).

Baseflow Index
0.41
mixed response
Avg Annual Rainfall
2,534 mm/yr
1991–2020 · +7% since 1941–70
Urban Extent
0.3%
largely rural
Median Annual Flood
105 m³/s
QMED — typical yearly peak flow
Highest Daily Mean Flow
299 m³/s
5 Dec 2015 · daily mean, not the instantaneous peak
Flow-Duration Curve
mean 12.2838.507.401.355% (high)% of days exceeded95% (low)
Daily flow (m³/s) exceeded each % of the time — a steep curve is flashy, a flat one is steady. Q5 high · Q50 median · Q95 low.
Land Cover (2023)
Woodland 10%Grassland 76%Arable 1%Heath/scrub 9%Urban 1%Other 4%

Flow affected by: surface-water abstraction.

Photos

Gauging-station photographs from the National River Flow Archive (UKCEH).

Photos © NRFA / UKCEH & the measuring authority — shown at web resolution. Full gallery on the NRFA ↗

About this gauge

Velocity area station located between Derwent and Bassenthwaite lakes.

More detail

The catchment

Geology mainly Borrowdale Volcanic series with Skiddaw Slates in the north and igneous intrusions east of Keswick (e.g. Castlehead Dolorite, St.John's and Threlkeld Microgranite). Boulder Clay overlies geology within the valleys of the north, with peat within the upland areas. Land-use mainly grasslands along river valley with the remainder heather and moorland. Catchment rises to the summit of Helvellyn. No catchment changes known.

The station

Opened December 1971 as a velocity area station located between Derwent (upstream) and Bassenthwaite (downstream) lakes. Non-standard shallow V weir installed in March 1993.

How it measures flow

Initially, a mobile gravel shoal immediately downstream acted as a control, with bank stability provided by wooden shuttering. This was not stable and a trench-piled non-standard shallow V weir was installed in March 1993 with bank stability provided by stone embankments. The station may be bypassed a little before the bankfull level at the station - roughly, a little above QMED. Bypassing is significant in the larger floods. Station has permanent cableway. Shifting ratings particularly at the low end. Results also appear reasonable in relation to Ouse Bridge downstream, allowing for attenuation. Mean daily flows have multiple ratings before weir construction, one thereafter. For peak flows, ratings simplified to separate (though similar) ratings before and after weir construction. Rated inbank by current meter to approximately 2.6m and out of bank by hydraulic model. Significant out-of-bank flow and hysteresis at the very largest events. Two peak flow ratings across period of record.

Flow regime

Regime affected by controlled releases from Derwent Water and spill and controlled releases from Thirlmere reservoir.

The flow record

No data after the 5th December 2015 due to rating changes during/following storm Desmond. Re-rating following temporary closure ongoing. Full period of record peak flow data reviewed and released in August 2024 (WINFAP Files v13).

Descriptions from the National River Flow Archive (UKCEH). NRFA station record ↗

Gauge Details

How this gauging station is built and how long it has measured (NRFA / UKCEH).

Gauge type
Velocity–area
Operating since
1972
Station datum
72.6 mAOD
Flow record
1972–2015 · 43 yrs · 100% complete
Peak-flow record
since 1971
Hydrometric area
75
Measured by
Environment Agency

Rain upstream

This gauge has no rain model of its own, but it usually follows Southwaite Bridge: when about 10mm of rain falls near Southwaite Bridge in 6h, this gauge usually starts rising about 75 minutes later.

Recent rain upstream: 0mm/6h — below Southwaite Bridge's usual trigger.

Record: this held 4 of 5 times (live) · rain gauge: Rainfall station

Experimental, from historical rain and river data. Not an official flood warning.

Frequently asked questions

Is the River Derwent at Portinscale flooding today?

The current level is 0.67m, which is within the typical range of 0.31 to 1.33m. Flooding is unlikely at this level.

Is the river level rising or falling at Portinscale?

Based on the most recent readings, the level is currently falling slightly. The chart above shows the last 12 hours of measurements by default (up to 7 days), updated roughly every 15 minutes.

Why is the level slowly falling?

When little or no rain has fallen for a while, a river level gradually drops as the water stored in the ground and soil drains away with nothing to replace it. This is called baseflow recession and is normal in dry spells. Only about 0.0mm of rain has fallen nearby in the last 7 days, so the flow is being sustained mainly by groundwater. A gentle decline like this is expected and is not a sign of a problem — downstream gauges often recede a little faster than headwaters further upstream, and levels recover once rain returns.

What is a normal level for the River Derwent at Portinscale?

The typical range at this station is 0.31m to 1.33m, based on Environment Agency historical data. Levels above 1.33m are higher than usually seen and may indicate a flood risk.

How often is this river level data updated?

Readings are supplied by the Environment Agency gauge. FloodRadar checks for updates roughly every 15 minutes; the timestamp above shows how recent the latest available reading is.

Embed this gauge on your website

Free live river-level widget — ideal for parish councils, angling clubs and local sites. Updates automatically.

Preview

📮 Flood risk by postcode near this gauge

Postcodes within 5 km with properties in the Environment Agency’s rivers-and-sea flood-risk bands:

Check any UK postcode’s flood risk →

🏠 Buying or renting around here? Get the Property Flood-Risk Report for any English postcode — official risk band, recorded floods, warning history, river behaviour and nearby storm overflows. £19 one-off. Learn more →