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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 data and are best-efforts. Terms
Current Level
0.192 mASD
▬ Steady
24h Max
0.205 mASD
24h Min
0.192 mASD
Typical Range
0.16 - 2.11
mASD
Highest Recorded
2.43 mASD
EA official record
A 3.31 reading (7 Apr 2026) 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
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.
Long Term
🌍 floodradar.co.uk
—
Consecutive rainy days0 → 10+
Days Above Normal
This year vs 5-year monthly range
Recent Readings
Falling · -0.3 cm over 5h
10 Sep 10:15▼ -0.2 cm0.192 mASD
10 Sep 10:00▬ steady0.194 mASD
10 Sep 09:45▼ -0.2 cm0.194 mASD
10 Sep 09:30▲ +0.1 cm0.196 mASD
10 Sep 09:15▲ +0.1 cm0.195 mASD
10 Sep 08:45▼ -0.1 cm0.194 mASD
10 Sep 08:30▬ steady0.195 mASD
10 Sep 08:00▬ steady0.195 mASD
10 Sep 07:45▬ steady0.195 mASD
10 Sep 07:30▬ steady0.195 mASD
10 Sep 07:15▬ steady0.195 mASD
10 Sep 07:00▬ steady0.195 mASD
10 Sep 06:45▲ +0.1 cm0.195 mASD
10 Sep 06:30▬ steady0.194 mASD
10 Sep 06:15▬ steady0.194 mASD
10 Sep 06:00▼ -0.1 cm0.194 mASD
10 Sep 05:45▬ steady0.195 mASD
10 Sep 05:30▬ steady0.195 mASD
10 Sep 05:15▬ steady0.195 mASD
10 Sep 05:000.195 mASD
Rainfall & Weather
Loading rainfall and weather data...
Flood history near this gauge
Official Environment Agency warnings issued since 2007 for the 8 flood
areas linked to this gauge (nearest 4.8 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 North Hykeham flood history.
Flow Data: Daily mean flow (m³/s) to 8 Sep (2 days behind — the EA publishes each day's mean a day or two after it ends; unchecked, provisional)via EA Hydrology
EA Cross-check: 0.19 mASD (EA at 10 Sep 10:15)
Geographic coordinates may reflect the access point for the gauge, and not the precise location in the watercourse that it is taking readings from.
Nearby Groundwater
Soil Moisture
Possible storm-overflow correlation
💧 Storm overflows on this river
Frequently asked questions
Is the River Witham at North Hykeham flooding today?
The current level is 0.19m, which is within the typical range of 0.16 to 2.11m. Flooding is unlikely at this level.
Is the river level rising or falling at North Hykeham?
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.
Why is the level slowly falling?
When little or no rain has fallen for a while, a river level gradually drops as the water stored in the ground and soil drains away with nothing to replace it. This is called baseflow recession and is normal in dry spells. A gentle decline like this is expected and is not a sign of a problem — downstream gauges often recede a little faster than headwaters further upstream, and levels recover once rain returns.
What is a normal level for the River Witham at North Hykeham?
The typical range at this station is 0.16m to 2.11m, based on Environment Agency historical data. Levels above 2.11m 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:
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