Hampshire Avon catchment
• South Newton • Wiltshire • ID: 43111 • Level
(31m ago) • 4 readings/hr • 155 views
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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
0.126 m
▬ Steady
24h Max
0.131 m
24h Min
0.126 m
Typical Range
0.14 - 0.65
m
Highest Recorded
1.06 m
EA official record
1.04 in our data (since Jan 1993)
Current level is 12% of this
🚽Sewage overflows nearby
Recent Water Levels
🌍 floodradar.co.uk
1 day
Prediction V2
Prediction Eris
Nimbus beta
Experimental model fusing soil moisture, river flow, groundwater and catchment
character. Shown with its calibrated 10–90% confidence band. 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.
Long Term
🌍 floodradar.co.uk
—
Consecutive rainy days0 → 10+
Days Above Normal
This year vs 5-year monthly range
Recent Readings
Falling · -0.2 cm over 6h
24 Aug 00:00▬ steady0.126 m
23 Aug 23:45▬ steady0.126 m
23 Aug 23:30▬ steady0.126 m
23 Aug 23:15▬ steady0.126 m
23 Aug 23:00▬ steady0.126 m
23 Aug 22:45▼ -0.1 cm0.126 m
23 Aug 21:30▬ steady0.127 m
23 Aug 21:15▬ steady0.127 m
23 Aug 21:00▬ steady0.127 m
23 Aug 20:45▬ steady0.127 m
23 Aug 20:30▬ steady0.127 m
23 Aug 20:15▬ steady0.127 m
23 Aug 20:00▬ steady0.127 m
23 Aug 19:45▬ steady0.127 m
23 Aug 19:30▬ steady0.127 m
23 Aug 19:15▼ -0.1 cm0.127 m
23 Aug 19:00▬ steady0.128 m
23 Aug 18:45▬ steady0.128 m
23 Aug 18:30▬ steady0.128 m
23 Aug 18:150.128 m
Rainfall & Weather
Loading rainfall and weather data...
Flood history near this gauge
Official Environment Agency warnings issued since 2011 for the 3 flood
areas linked to this gauge (nearest 3.1 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 South Newton flood history.
Geographic coordinates may reflect the access point for the gauge, and not the precise location in the watercourse that it is taking readings from.
Catchment Character
🌊 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
0.94
groundwater-fed — slow & steady
Avg Annual Rainfall
922 mm/yr
1991–2020 · +9% since 1941–70
Urban Extent
1.0%
largely rural
Median Annual Flood
12.86 m³/s
QMED — typical yearly peak flow
Highest Recorded Flow
29.40 m³/s
1 Feb 1995
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 8%Grassland 53%Arable 36%Urban 3%
Grassland 59% → 53% since 1990
Flow affected by: public water supply.
Photos
Gauging-station photographs from the National River Flow Archive (UKCEH).
Crump profile weir, can be affected by summer weed growth.
More detail
The catchment
Predominantly Chalk; Upper Greensand and Gault in upper catchment. Rural land use. No major catchment changes.
The station
Crump profile weir, crest 10.7m broad. Full range station; opened in 1966. Subject to drowning and bypassing at high discharges.
How it measures flow
Sluice control upstream for river regulation. Minor bypassing. Heavy weed growth during summer months. Good data set with check gaugings confirming original rating. One peak flow rating applied across period of record. Rating extended based on flood gaugings. Upper limit of rating is 1.30m/42.3 cumecs.
Flow regime
Natural to within 10% at Q95. Direct abstraction from the river for spray irrigation. Sluice control upstream for river regulation and groundwater abstractions.
The flow record
There is lower confidence in flow data before 1992, hence this data is marked as an unrepresentative period. Full period of record peak flow data reviewed and released in September 2019 (WINFAP Files v8) and in September 2023 (WINFAP Files v12).
How this gauging station is built and how long it has measured (NRFA / UKCEH).
Gauge type
Crump weir
Operating since
1966
Station datum
55.6 mAOD
Flow record
1967–2024 · 57 yrs · 100% complete
Peak-flow record
since 1966
Hydrometric area
43
Measured by
Environment Agency
Nearby Groundwater
Soil Moisture
Possible storm-overflow correlation
🚽 Storm overflows on this river
Frequently asked questions
Is the River Wylye at South Newton flooding today?
The current level is 0.13m, which is below the typical range. Flooding is very unlikely at this level.
Is the river level rising or falling at South Newton?
Based on the most recent readings, the level is currently steady. The chart above shows the last 7 days of measurements, updated roughly every 15 minutes.
What is a normal level for the River Wylye at South Newton?
The typical range at this station is 0.14m to 0.65m, based on Environment Agency historical data. Levels above 0.65m are higher than usually seen and may indicate a flood risk.
How often is this river level data updated?
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.
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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:
