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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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Current Level
0.094 m
▬ Steady
24h Max
0.102 m
24h Min
0.094 m
Typical Range
0.09 - 0.57
m
Highest Recorded
1.19 m
EA official record
A 1.35 reading (9 Feb 2014) sits in our unverified raw history and is not treated as the record
Current level is 8% 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 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 5.2 km away along the river. 0 report discharging now, 4 report not discharging.
Wessex Water · into River Nadder Via Sws · 22.3 km upstream along the river
36 spills · 71 hours in 2025
Not discharging now · last
Reaches the river through a sewer, so where it enters is approximate.
5 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 0.57 m
on about 2 days.
This year so far: 9 days.
20269 days so far
20254 days
20249 days
20233 days
20220 days patchy data
20212 days
20201 day
20190 days
20180 days
20170 days
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.
Flood history near this gauge
Official Environment Agency warnings issued since 2011 for the 9 flood
areas linked to this gauge (nearest 0.3 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 Wilton flood history.
Flood areas linked to this gauge
Flood warnings and alerts are issued for whole areas. These are the 9 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
0.76
groundwater-fed — slow & steady
Avg Annual Rainfall
952 mm/yr
1991–2020 · +1% since 1941–70
Urban Extent
0.9%
largely rural
Median Annual Flood
15.86 m³/s
QMED — typical yearly peak flow
Highest Daily Mean Flow
27.73 m³/s
28 Dec 1979 · 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.
Land Cover (2023)
Woodland 15%Grassland 41%Arable 41%Urban 3%
Photos
Gauging-station photographs from the National River Flow Archive (UKCEH).
Mixed geological formation (Jurassic and Cretaceous) - predominantly Chalk with Clays in upper catchment. Land use is rural. No major catchment changes.
The station
Crump weir, crest 18.3m wide.
How it measures flow
Crest tapping abandoned after first few months; modular limit (0.6m) seldom reached, although weir can drown at very high flows. Bypassing is minor. Banks very weedy during summer. Rare weed clearance can lead to significant u/s constriction. Minor bypass. Gaugings taken 50-100m upstream, previously taken at Bull Bridge. Single theoretical rating has been confirmed by spot gaugings at high and low flows. Rating may underestimate in mid flow range. Upper limit of rating is 0.48m/12.8cumecs. It is extrapolated beyond that limit.
Flow regime
Natural to within 10% at Q95; some minor groundwater pumping. Sluices and hatches can regulate flow for short periods. A small drainage channel bypasses the recorder.
The flow record
Full period of record peak flow data reviewed and released in September 2020 (WINFAP Files v9).
Timing, not cause. Gauges can move together simply because the same rain fell on both.
Frequently asked questions
Is the River Nadder at Wilton flooding today?
The current level is 0.09m, which is within the typical range of 0.09 to 0.57m. Flooding is unlikely at this level.
Is the river level rising or falling at Wilton?
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 Nadder at Wilton?
The typical range at this station is 0.09m to 0.57m, based on Environment Agency historical data. Levels above 0.57m 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.
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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: