Cam and Ely Ouse (Including South Level) catchment
• Whaddon • Cambridgeshire • ID: E22103 • Level
The official "typical high" for this gauge is routinely exceeded (often the case on
regulated rivers), so FloodRadar uses a threshold computed from this station's own data.
(22m ago) • 4 readings/hr • 119 views
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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.
Beta. You'll be notified when a flood wave detected at an upstream gauge is forecast to reach this station, with an estimated arrival time. Accuracy improves as we verify more waves.
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 data and are best-efforts. Terms
Current Level
0.428 m
▬ Steady
24h Max
0.432 m
24h Min
0.419 m
Typical Range
0.17 - 0.62
m
Highest Recorded
1.06 m
2 Jan 2003
Since Jul 1992
Current level is 40% 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
Rising · +0.5 cm over 6h
24 Aug 00:30▬ steady0.428 m
24 Aug 00:15▲ +0.1 cm0.428 m
24 Aug 00:00▬ steady0.427 m
23 Aug 23:45▲ +0.1 cm0.427 m
23 Aug 23:30▬ steady0.426 m
23 Aug 23:15▬ steady0.426 m
23 Aug 23:00▲ +0.1 cm0.426 m
23 Aug 22:45▬ steady0.425 m
23 Aug 21:30▬ steady0.425 m
23 Aug 21:15▬ steady0.425 m
23 Aug 21:00▬ steady0.425 m
23 Aug 20:45▲ +0.1 cm0.425 m
23 Aug 20:30▲ +0.1 cm0.424 m
23 Aug 20:15▬ steady0.423 m
23 Aug 20:00▬ steady0.423 m
23 Aug 19:45▬ steady0.423 m
23 Aug 19:30▬ steady0.423 m
23 Aug 19:15▬ steady0.423 m
23 Aug 19:00▬ steady0.423 m
23 Aug 18:450.423 m
Rainfall & Weather
Loading rainfall and weather data...
Flood history near this gauge
Official Environment Agency warnings issued since 2013 for the 4 flood
areas linked to this gauge (nearest 2.0 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 Whaddon 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
576 mm/yr
1991–2020 · -3% since 1941–70
Urban Extent
12%
partly urbanised
Highest Recorded Flow
1.50 m³/s
2 Jan 2003
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.
Station gauging a Chalk catchment with significant artificial influences.
More detail
The catchment
Chalk catchment used mainly for mixed farming but with significant built-up area (Royston).
The station
Pre-cast fibreglass flume set in concrete; long-crested flume crest 0.1m broad.
How it measures flow
Part of the Rhee groundwater support scheme, operated according to site conditions.
Flow regime
Flows affected by effluent from Royston STW u/s of station.
The flow record
Flow from 2014/11/20 to 2015/02/25 was likely non-modular. Flow from 2015/03/02 to 2015/06/15 may be affected by the Rhee Groundwater Support Scheme and flows during that period are higher than what could be expected based on nearby stations.
How this gauging station is built and how long it has measured (NRFA / UKCEH).
Gauge type
Flume
Operating since
1980
Station datum
15.7 mAOD
Flow record
1980–2024 · 44 yrs · 100% complete
Hydrometric area
33
Measured by
Environment Agency
Nearby Groundwater
Soil Moisture
Possible storm-overflow correlation
🚽 Storm overflows on this river
Frequently asked questions
Is the Whaddon Brook at Whaddon flooding today?
The current level is 0.43m, which is within the typical range of 0.17 to 0.62m. Flooding is unlikely at this level.
Is the river level rising or falling at Whaddon?
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 Whaddon Brook at Whaddon?
The typical range at this station is 0.17m to 0.62m, based on Environment Agency historical data. Levels above 0.62m 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.
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:
