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⤴Unusual rise — FloodRadar+Top 1% rise rate for this gauge.
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.
Get notified when recent rainfall near this gauge crosses its learnt rise trigger — an early "watch"
signal, typically hours before a rise. Experimental; not an official flood warning.
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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
0.203 mASD
▼ Easing (-2cm/hr)
24h Max
0.229 mASD
24h Min
0.185 mASD
Typical Range
0.15 - 0.80
mASD
Highest Recorded
1.80 mASD
EA official record
1.79 in our data (since Jan 1970)
Current level is 11% of this
🚽Sewage overflows nearby
Recent Water Levels
🌍 floodradar.co.uk
1 day
EA forecast (official)
Prediction V2
Prediction Eris
Nimbus beta
Experimental model fusing soil moisture, river flow, groundwater and catchment
character. The shaded band is its 10–90% range, widened so that about 80% of recent outcomes fall inside it.
Under evaluation — not yet promoted, so treat as a second opinion.
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.
Flow Data: Daily mean flow (m³/s) to 8 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.
10 storm overflows are traced upstream of this gauge, the nearest 3.5 km away along the river. 0 report discharging now, 9 report not discharging, and for 1 the monitor is offline or has not reported, so their status is not known.
Severn Trent Water · into Tributary Of Leas Brook · 3.9 km away in a straight line · its watercourse is not on the river map
0 spills · 0 hours in 2025
Not discharging now
11 more within 6 km whose connection is not known.
10 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 →
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 Market Warsop flood history.
Flood areas linked to this gauge
Flood warnings and alerts are issued for whole areas. These are the 7 areas linked to this gauge, nearest first.
🌊 Groundwater-fedSlow and steady — fed largely by groundwater, so levels change gradually, not in sudden spikes.
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
0.82
groundwater-fed — slow & steady
Avg Annual Rainfall
759 mm/yr
1991–2020 · +7% since 1941–70
Urban Extent
9.7%
partly urbanised
Median Annual Flood
4.92 m³/s
QMED — typical yearly peak flow
Highest Daily Mean Flow
17.63 m³/s
20 Oct 2023 · 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.
Ribbon-like, SW-NE catchment of moderate relief, rising on Magnesian Limestone, subordinate Permian Marl and Sherwood Sandstone. Mining was dominant industry; many spoil tips. Sutton in Ashfield in headwaters, also part of Mansfield Woodhouse.
The station
Flat-V weir installed in Jan 2015 to replace the trapezoidal flume built in 1964. 1972-2015 flume was unsatisfactory so site used as velocity area except 1984-1990 when station was inactive. Built to measure flows entering Sherwood Sandstone outcrop.
How it measures flow
Theoretical Flat-V equation applies from 2015 onwards with tail water corrections above modular limit of structure. Two ratings applied to pre-2015 period of record, one post-2015. Mining subsidence in 1976 caused permanent drowning of flume until downstream channel was regraded in 1981.
Flow regime
Significant proportion of low flows are comprised of effluent.
The flow record
15 minute derived data starts 1972, only summary and daily mean data prior to this. Station closed between 1984 and 1990. June 2007 and October 2023 high flows beyond limit of rating curve. Full period of record peak flow data reviewed and released in August 2025 (WINFAP Files v14).
How this gauging station is built and how long it has measured (NRFA / UKCEH).
Gauge type
Flat-V weir
Operating since
1965
Station datum
55.8 mAOD
Flow record
1965–2024 · 59 yrs · 89% complete
Peak-flow record
since 1965
Hydrometric area
28
Measured by
Environment Agency
Nearby Groundwater
Soil Moisture
Possible storm-overflow correlation
Frequently asked questions
Is the River Meden at Church Warsop flooding today?
The current level is 0.20m, which is within the typical range of 0.15 to 0.80m. Flooding is unlikely at this level.
Is the river level rising or falling at Church Warsop?
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. 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 Meden at Church Warsop?
The typical range at this station is 0.15m to 0.80m, based on Environment Agency historical data. Levels above 0.80m 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: