FloodRadar
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Get notified about Jeffy Knotts — tick as many as you like, they all share the notify settings below.
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
Geographic coordinates may reflect the access point for the gauge, and not the precise location in the watercourse that it is taking readings from.
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.
Distances by river: OS Open Rivers. Contains OS data © Crown copyright and database rights 2026.
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.
1 storm overflow is traced upstream of this gauge, the nearest 4.2 km away along the river. 0 report discharging now, 1 reports not discharging.
Within 6 km in a straight line, but the river map cannot say whether their water passes this gauge.
2 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.
Loading rainfall and weather data...
In a typical year this gauge reaches its typical high of 1.75 m on about 45 days. This year so far: 24 days.
Counted from each day's highest reading. Days with missing or implausible readings are left out. The darker part is days above 2.67 m, the level this gauge tops only a few days a year.
Official Environment Agency warnings issued since 2006 for the 8 flood areas linked to this gauge (nearest 1.6 km away).
Most recent flood warning: 14 Dec 2025 — River Rothay at Grasmere, White Bridge and Stock Lane
| Year | Warnings | Alerts |
|---|---|---|
| 2026 | 0 | 6 |
| 2025 | 5 | 12 |
| 2024 | 3 | 15 |
| 2023 | 4 | 16 |
| 2022 | 1 | 14 |
| 2021 | 4 | 8 |
| 2020 | 0 | 8 |
| 2019 | 0 | 9 |
| 2018 | 0 | 3 |
| 2017 | 0 | 9 |
| 2016 | 0 | 7 |
| 2015 | 0 | 9 |
| 2014 | 0 | 6 |
| 2013 | 0 | 9 |
| 2012 | 0 | 12 |
| 2011 | 0 | 7 |
| 2010 | 0 | 6 |
| 2009 | 0 | 10 |
| 2008 | 0 | 18 |
| 2007 | 0 | 22 |
| 2006 | 0 | 24 |
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 Jeffy Knotts flood history.
Flood warnings and alerts are issued for whole areas. These are the 8 areas linked to this gauge, nearest first.
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).
Gauging-station photographs from the National River Flow Archive (UKCEH).
3 Jul 2019 Downstream 2019
3 Jul 2019 Upstream 2004
18 Jul 2018 Channel weed
18 Jul 2018 Downstream 2018
18 Jul 2018 Upstream 1989
19 Oct 2017 View downstream at GS
19 Oct 2017 View upstream at GS
19 Oct 2017 Stage boards at GS
21 Jun 2017 Rock bar gauging section
29 Mar 2017 Downstream 2017
29 Mar 2017 Station
28 Jan 2014 Gauging at 1.8m
25 May 2004 Upstream 2018
31 Mar 2004 Gauging boards and stilling well inlet pipe
31 Mar 2004 Gauging boards and stilling well inlet pipe
31 Mar 2004 Looking upstream
Photos © NRFA / UKCEH & the measuring authority — shown at web resolution. Full gallery on the NRFA ↗
Velocity area station. Bed movement and weed growth require frequent rating changes.
Descriptions from the National River Flow Archive (UKCEH). NRFA station record ↗
How this gauging station is built and how long it has measured (NRFA / UKCEH).
The current level is 0.97m, which is within the typical range of 0.45 to 1.75m. Flooding is unlikely at this level.
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.
The typical range at this station is 0.45m to 1.75m, based on Environment Agency historical data. Levels above 1.75m are higher than usually seen and may indicate a flood risk.
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.
Free live river-level widget — ideal for parish councils, angling clubs and local sites. Updates automatically.
Postcodes within 5 km with properties in the Environment Agency’s rivers-and-sea flood-risk bands:
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