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Height for "Above a height"
Drag the line on the chart, or type a value:mASD
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You'll be notified when this gauge is rising more than 0.10 m/hr — a sign of rapidly increasing water levels.
You'll be notified when a new storm-overflow (sewage) discharge starts within ~3 km of this gauge, based on the water companies' near-real-time feeds.
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Not an emergency service — if in danger call 999. Alerts rely on
EA/SEPA/NRW data and are best-efforts. Terms
Current Level
0.107 mASD
▬ Steady
24h Max
0.111 mASD
24h Min
0.101 mASD
Typical Range
0.10 - 0.66
mASD
Highest Recorded
1.88 mASD
EA official record
A 2.26 reading (15 Aug 1980) sits in our unverified raw history and is not treated as the record
Current level is 6% of this
🚽Sewage overflows nearby
Recent Water Levels
🌍 floodradar.co.uk
1 day
EA forecast (official)
Flood predictions aren't generated for
lock / structure gauges —
their levels are driven by gate operation,
not by catchment rainfall, so the forecast models would have no skill here.
River Flow
90 days
Daily mean discharge (m³/s) with the daily min–max band, from the EA Hydrology API. Flow is the volume of water passing the gauge — often a more direct flood signal than level.
Downstream level
7 days
The level on the DOWNSTREAM side of this lock/weir structure — a separate EA
measure from the main (upstream) reading shown on the Current tab. Threshold bands
are computed from this gauge's own downstream history.
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
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.
4 storm overflows are traced upstream of this gauge, the nearest 620 m away along the river. 0 report discharging now, 4 report not discharging.
Severn Trent Water · into Clifton Brook · 5.6 km away in a straight line · no mapped watercourse close enough to be sure
0 spills · 0 hours in 2025
Not discharging now
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 →
In a typical year this gauge reaches its typical high of 0.66 m
on about 43 days.
This year so far: 34 days.
202634 days, 1 of them high · 1 highso far
202528 days, 1 of them high · 1 high
202477 days, 7 of them high · 7 high
202351 days, 1 of them high · 1 high
202226 days
202137 days
202065 days, 4 of them high · 4 high
201958 days, 4 of them high · 4 high
201825 days, 1 of them high · 1 high
201719 days
Counted from each day's highest reading. Days with missing or implausible readings are left out.
The darker part is days above 1.49 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 6 flood
areas linked to this gauge (nearest 1.0 km away).
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 Lilbourne flood history.
Flood areas linked to this gauge
Flood warnings and alerts are issued for whole areas. These are the 6 areas linked to this gauge, nearest first.
🌊 Fairly flashyResponds fairly quickly to rain, with moderate baseflow between events.
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
0.35
mixed response
Avg Annual Rainfall
706 mm/yr
1991–2020 · +2% since 1941–70
Urban Extent
0.6%
largely rural
Median Annual Flood
13.59 m³/s
QMED — typical yearly peak flow
Highest Daily Mean Flow
18.92 m³/s
2 Jan 2024 · daily mean, not the instantaneous peak
Flow-Duration Curve
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.
Open channel site with cableway until 17/12/98, when flat V weir constructed.
More detail
The catchment
Agricultural catchment on Lower Lias, with fairly low relief despite being near the headwaters.
The station
Open channel site suffered heavily from weed growth which led to the installation of the flat-v weir. Cableway no longer in use - flow gaugings carried out by waded, remote control or roped ADCP in the same section as the cableway.
How it measures flow
Crest tapping and downstream tail recorder installed (from October and November 1999 respectively). Weir is situated under a bridge which helps reduce weed growth in the measuring channel and on the weir crest. Due to the known problems with weed at the site, paired with the low modular limit of the weir, a crest tapping tile was added on the weir crest. An automated pump was installed for flushing the crest tapping on a regular basis, however is now switched off due to technical issues. Two ratings applied accross the period of record following installation of the flat-v weir in 1998.
Flow regime
Influences are PWS and canal abstractions at low flows and peak flattening effect of Stanford Reservoir at high flows.
The flow record
Full period of record peak flow data reviewed and released in September 2023 (WINFAP Files v12).
How this gauging station is built and how long it has measured (NRFA / UKCEH).
Gauge type
Flat-V weir
Operating since
1979
Station datum
92.9 mAOD
Flow record
2005–2024 · 19 yrs · 100% complete
Peak-flow record
since 1951
Hydrometric area
54
Measured by
Environment Agency
Nearby Groundwater
Soil Moisture
Frequently asked questions
Is the River Avon at Lilbourne flooding today?
The current level is 0.11m, which is within the typical range of 0.10 to 0.66m. Flooding is unlikely at this level.
Is the river level rising or falling at Lilbourne?
Based on the most recent readings, the level is currently steady. The chart above shows the last 12 hours of measurements by default (up to 7 days), updated roughly every 15 minutes.
What is a normal level for the River Avon at Lilbourne?
The typical range at this station is 0.10m to 0.66m, based on Environment Agency historical data. Levels above 0.66m 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.
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📮 Flood risk by postcode near this gauge
Postcodes within 5 km with properties in the Environment Agency’s rivers-and-sea flood-risk bands:
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