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Not an emergency service — if in danger call 999. Alerts rely on EA/SEPA data and are best-efforts. Terms
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Official Environment Agency warnings issued since 2010 for the 7 flood areas linked to this gauge (nearest 0.1 km away).
Most recent flood warning: 20 Dec 2025 — Mevagissey Stream at Mevagissey
| Year | Warnings | Alerts |
|---|---|---|
| 2026 | 0 | 3 |
| 2025 | 1 | 6 |
| 2024 | 0 | 5 |
| 2023 | 1 | 3 |
| 2021 | 0 | 1 |
| 2020 | 2 | 4 |
| 2019 | 0 | 2 |
| 2018 | 2 | 1 |
| 2016 | 1 | 5 |
| 2015 | 0 | 2 |
| 2014 | 7 | 6 |
| 2013 | 1 | 3 |
| 2012 | 4 | 6 |
| 2011 | 0 | 4 |
| 2010 | 0 | 1 |
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 Tregony flood history.
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Geographic coordinates may reflect the access point for the gauge, and not the precise location in the watercourse that it is taking readings from.
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).
Flow affected by: effluent returns, industrial / agricultural abstraction.
Gauging-station photographs from the National River Flow Archive (UKCEH).
29 Apr 2012 High flow looking upstream towards the flume, stage = 1.41m
10 Aug 2009 Flume in detail
Tregony hut
Tregony flume and section at low flows
Tregony flume low flows
Tregony section during mid flows
Photos © NRFA / UKCEH & the measuring authority — shown at web resolution. Full gallery on the NRFA ↗
Velocity area station augmented by a low flow side-contracted flume. Some data unreliable due to siltation of flume an inlet pipes.
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 0.18m, which is below the typical range. Flooding is very unlikely at this level.
Based on the most recent readings, the level is currently falling. The chart above shows the last 7 days of measurements, updated roughly every 15 minutes.
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. 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.
The typical range at this station is 0.25m to 1.50m, based on Environment Agency historical data. Levels above 1.50m are higher than usually seen and may indicate a flood risk.
Readings are taken by the Environment Agency gauge roughly every 15 minutes and FloodRadar refreshes its data continuously, so the level shown is normally less than an hour old.
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:
