Sensor data may be unreliable — recent readings are physically implausible
for this gauge (far outside its normal range). Treat the level shown with caution; the EA
may be reporting a faulty sensor.
sensor frozen — identical value 1.02m for 14 days (since 2026-09-01)
Set water level alerts
Get notified about Hamerton — tick as many as you like, they all share the notify settings below.
Alert me when (tick one or more)
Height for "Above a height"
Drag the line on the chart, or type a value:mASD
Quick pick:
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.
Notify by (tick one or more)
Your browser will ask permission, then you'll get a notification even when FloodRadar isn't open.
On iPhone: tap Share → Add to Home Screen first, then open it from there and set the alert. Show me how
Each one is saved as its own alert — pause or remove them individually any time.
Not an emergency service — if in danger call 999. Alerts rely on
EA/SEPA/NRW data and are best-efforts. Terms
Current Level
1.023 mASD
▬ Steady
24h Max
1.023 mASD
24h Min
1.023 mASD
Typical Range
1.02 - 2.20
mASD
Highest Recorded
3.60 mASD
EA official record
3.91 in our data (since Nov 2012)
🚽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.
In a typical year this gauge reaches its typical high of 2.20 m
on about 7 days.
This year so far: 9 days.
20269 days, 4 of them high · 4 highso far
20251 day, 1 of them high · 1 high
202413 days, 10 of them high · 10 high
202312 days, 6 of them high · 6 high
20224 days, 2 of them high · 2 high
20217 days, 5 of them high · 5 high
20207 days, 5 of them high · 5 high
20197 days, 5 of them high · 5 high
20187 days, 3 of them high · 3 high
20173 days, 2 of them high · 2 high
Counted from each day's highest reading. Days with missing or implausible readings are left out.
The darker part is days above 2.40 m, the level this gauge tops only a few days a year.
Flood history near this gauge
Official Environment Agency warnings issued since 2012 for the 4 flood
areas linked to this gauge (nearest 7.4 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 Hamerton flood history.
Flood areas linked to this gauge
Flood warnings and alerts are issued for whole areas. These are the 4 areas linked to this gauge, nearest first.
Is the Alconbury Brook at Hamerton flooding today?
The current level is 1.02m, which is within the typical range of 1.02 to 2.20m. Flooding is unlikely at this level.
Is the river level rising or falling at Hamerton?
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 Alconbury Brook at Hamerton?
The typical range at this station is 1.02m to 2.20m, based on Environment Agency historical data. Levels above 2.20m 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.
Preview
📮 Flood risk by postcode near this gauge
Postcodes within 5 km with properties in the Environment Agency’s rivers-and-sea flood-risk bands:
FloodRadar
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