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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.
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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
0.135 m
▬ Steady
24h Max
0.136 m
24h Min
0.130 m
Typical Range
0.09 - 1.27
m
Highest Recorded
2.10 m
EA official record
1.87 in our data (since Oct 1979)
Current level is 6% 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
Steady over 6h
23 Aug 23:00▬ steady0.135 m
23 Aug 22:45▬ steady0.135 m
23 Aug 21:30▬ steady0.135 m
23 Aug 21:15▬ steady0.135 m
23 Aug 21:00▬ steady0.135 m
23 Aug 20:45▬ steady0.135 m
23 Aug 20:30▬ steady0.135 m
23 Aug 20:15▬ steady0.135 m
23 Aug 20:00▬ steady0.135 m
23 Aug 19:45▬ steady0.135 m
23 Aug 19:30▬ steady0.135 m
23 Aug 19:15▬ steady0.135 m
23 Aug 19:00▬ steady0.135 m
23 Aug 18:45▬ steady0.135 m
23 Aug 18:30▬ steady0.135 m
23 Aug 18:15▬ steady0.135 m
23 Aug 18:00▲ +0.1 cm0.135 m
23 Aug 17:45▬ steady0.134 m
23 Aug 17:30▬ steady0.134 m
23 Aug 17:150.134 m
Rainfall & Weather
Loading rainfall and weather data...
Flood history near this gauge
Official Environment Agency warnings issued since 2007 for the 6 flood
areas linked to this gauge (nearest 1.4 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 Stisted 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
🌊 Fairly flashyResponds fairly quickly to rain, with moderate baseflow between events.
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
0.49
mixed response
Avg Annual Rainfall
619 mm/yr
1991–2020 · +2% since 1941–70
Urban Extent
2.6%
largely rural
Median Annual Flood
14.30 m³/s
QMED — typical yearly peak flow
Highest Recorded Flow
30.70 m³/s
21 Oct 2001
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.
'Essex' profile gauging a predominantly Chalk catchment affected by artificial influences including urban runoff and Ely Ouse/Essex scheme.
More detail
The catchment
Upper two-thirds of catchment are Chalk, remainder London Clay (exposed in valleys), all overlain with Boulder Clay and some glacial gravel. Mainly rural (arable predominates) but with Braintree urban area in lower valley, just u/s of station.
The station
'Essex' profile (modified Flat V Crump) weir with crest tapping. No spillway.
How it measures flow
Modest modular limit (around 0.62m) affected by weed growth. No spillway. VA rating for high flows. One peak flow rating applied across period of record. Some of the gaugings were based on float-runs and may not be reliable. Post-1979, flow is derived through the rating curve and then under non-modular conditions, a macro is applied within WISKI which applies a reduction factor. Therefore, under high flows, the stage and flow will not match through the modular rating. In the earlier record, however, adjustment for non-modularity appears to have been made by correcting the artifical elevation of stage, and these events therefore agree through the rating.
Flow regime
Urban runoff from Braintree. Minor adjustments needed for ground and surface water abstractions, sewage and industrial effluent and Ely Ouse/Essex discharges. Net effect - minor export of water.
The flow record
No POT data are presented for this station as they have no non-modular flow correction applied. AMAX data have been corrected, but in some cases can be below the daily flow as these are not corrected. Flows can be artificially increased by Ely Ouse transfer scheme (e.g. June 2015). Full period of record peak flow data reviewed and released in August 2021 (WINFAP Files v10).
How this gauging station is built and how long it has measured (NRFA / UKCEH).
Gauge type
Gauging structure
Operating since
1969
Station datum
31.8 mAOD
Flow record
1969–2024 · 55 yrs · 100% complete
Peak-flow record
since 1969
Hydrometric area
37
Measured by
Environment Agency
Nearby Groundwater
Soil Moisture
Possible storm-overflow correlation
🚽 Storm overflows on this river
Frequently asked questions
Is the River Blackwater at Stisted flooding today?
The current level is 0.14m, which is within the typical range of 0.09 to 1.27m. Flooding is unlikely at this level.
Is the river level rising or falling at Stisted?
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 Blackwater at Stisted?
The typical range at this station is 0.09m to 1.27m, based on Environment Agency historical data. Levels above 1.27m 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.
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:
25 Sep 2017 Looking downstream in normal conditions
4 Jan 2007 Weir in normal conditions
24 Aug 2001
21 Aug 2001 View across weir from lb
21 Aug 2001 Structure from d/s
