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⤴Unusual rise — FloodRadar+Top 1% rise rate for this gauge.
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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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EA/SEPA/NRW data and are best-efforts. Terms
Current Level
0.139 mASD
▬ Steady
24h Max
0.145 mASD
24h Min
0.135 mASD
Typical Range
0.15 - 0.70
mASD
Highest Recorded
1.03 mASD
EA official record
1.01 in our data (since Feb 1987)
Current level is 14% 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.
7 storm overflows are traced upstream of this gauge, the nearest 2.6 km away along the river. 0 report discharging now, 6 report not discharging, and for 1 the monitor is offline or has not reported, so their status is not known.
Wessex Water · into Tributary Of River Avon · 40.1 km upstream along the river
52 spills · 1,078 hours in 2025
Not discharging now · last
4 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 0.70 m
on about 7 days.
This year so far: 24 days.
202624 days, 10 of them high · 10 highso far
20254 days, 2 of them high · 2 high
202432 days, 13 of them high · 13 high
20237 days
20220 days
20210 days
20208 days, 1 of them high · 1 high
20198 days
20180 days
20170 days
Counted from each day's highest reading. Days with missing or implausible readings are left out.
The darker part is days above 0.77 m, the level this gauge tops only a few days a year.
Flood history near this gauge
Official Environment Agency warnings issued since 2011 for the 8 flood
areas linked to this gauge (nearest 4.1 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 Amesbury flood history.
Flood areas linked to this gauge
Flood warnings and alerts are issued for whole areas. These are the 8 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
0.90
groundwater-fed — slow & steady
Avg Annual Rainfall
818 mm/yr
1991–2020 · +7% since 1941–70
Urban Extent
1.3%
largely rural
Median Annual Flood
10.58 m³/s
QMED — typical yearly peak flow
Highest Daily Mean Flow
25.18 m³/s
2 Jan 2003 · 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 5%Grassland 54%Arable 37%Urban 4%
Grassland 60% → 54% since 1990
Flow affected by: groundwater abstraction.
Photos
Gauging-station photographs from the National River Flow Archive (UKCEH).
Crump profile weir flanked by broad-crested weirs. Situated on the River Avon. Full Range station.
More detail
The catchment
Predominantly permeable (Chalk) catchment with a small inlier of Upper Greensand and Gault. The northern area of the catchment consists of a band of Greensand between bands of lower chalk. The rest of the catchment is composed of upper Chalk. Land use is rural. Topographical and groundwater catchments do not coincide. No major changes.
The station
Crump profile weir (crest 9.14m wide) flanked by broad-crested weirs.
How it measures flow
Full range station, a good gauge for high flow analysis .No known out of bank bypassing. Observed to be fully modular at 0.986m. Small bypass channel approx. 2m u/s of weir - included in rating. Weed growth downstream of the weir has in very exceptional summers been known to cause non-modularity. Two peak flow ratings applied across period of record. Re-rated in 2001 to include exceptional 12/2000 event and applied to whole period of record. The EA are very confident of the stage-discharge relationship. Good high flow rating based on current meter gaugings. Upper limit of rating is 1m / 26.3 cumecs. It is extrapolated beyond that limit.
Flow regime
Some groundwater pumping influences flows. During summer, flows are naturally augmented from groundwater draining from northern half of the River Bourne catchment.
The flow record
Peak flows prior to 1987 are truncated and therefore rejected. Full period of record peak flow data reviewed and released in September 2019 (WINFAP Files v8).
How this gauging station is built and how long it has measured (NRFA / UKCEH).
Gauge type
Crump weir
Operating since
1965
Station datum
67.1 mAOD
Flow record
1965–2024 · 59 yrs · 100% complete
Peak-flow record
since 1965
Hydrometric area
43
Measured by
Environment Agency
Nearby Groundwater
Soil Moisture
Possible storm-overflow correlation
Frequently asked questions
Is the River Avon at Amesbury flooding today?
The current level is 0.14m, which is below the typical range. Flooding is very unlikely at this level.
Is the river level rising or falling at Amesbury?
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 Amesbury?
The typical range at this station is 0.15m to 0.70m, based on Environment Agency historical data. Levels above 0.70m 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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