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0.04

Three Elms

Yazor Brook ⚙ Structure
Wye catchment • Three Elms • Herefordshire • ID: 055031_TG 329 • Level
(37m ago) • 4 readings/hr • 137 views

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Not an emergency service — if in danger call 999. Alerts rely on EA/SEPA/NRW data and are best-efforts. Terms

Current Level
0.042 mASD
▬ Steady
24h Max
0.043 mASD
24h Min
0.040 mASD
Typical Range
0.13 - 0.41
mASD
Highest Recorded
1.29 mASD
EA official record
1.24 in our data (since Oct 1990)
Current level is 3% of this
🚽 Sewage overflows nearby

Recent Water Levels

🌍 floodradar.co.uk
1 day

Flood predictions aren't generated for lock / structure gauges — their levels are driven by gate operation, not by catchment rainfall, so the forecast models would have no skill here.

Recent Readings

Steady over 6h
08 Oct 10:15 ▬ steady 0.042 mASD
08 Oct 10:00 ▬ steady 0.042 mASD
08 Oct 09:45 ▬ steady 0.042 mASD
08 Oct 09:30 ▬ steady 0.042 mASD
08 Oct 09:15 ▬ steady 0.042 mASD
08 Oct 09:00 ▬ steady 0.042 mASD
08 Oct 08:45 ▬ steady 0.042 mASD
08 Oct 08:30 ▬ steady 0.042 mASD
08 Oct 08:15 ▬ steady 0.042 mASD
08 Oct 07:45 ▬ steady 0.042 mASD
08 Oct 07:30 ▬ steady 0.042 mASD
08 Oct 07:00 ▬ steady 0.042 mASD
08 Oct 06:30 ▬ steady 0.042 mASD
08 Oct 06:15 ▬ steady 0.042 mASD
08 Oct 06:00 ▲ +0.1 cm 0.042 mASD
08 Oct 05:30 ▬ steady 0.041 mASD
08 Oct 05:15 ▬ steady 0.041 mASD
08 Oct 05:00 ▬ steady 0.041 mASD
08 Oct 04:45 ▬ steady 0.041 mASD
08 Oct 04:30 0.041 mASD

Station Details

  • Monitoring Station: Three Elms
  • Watercourse: Yazor Brook
  • Nearest Town: Three Elms
  • County: Herefordshire
  • Coordinates: 52°4'9"N 2°44'37"W (52.069153, -2.743532)
  • Open in: Google Maps · Apple Maps (opens your maps app)
  • Date Opened: 1 Feb 1973
  • Status: Active
  • Station Type: River level station
Technical details: references, datum, range, flow archive
  • Station Reference: 055031_TG 329
  • RLOI id: 4033 (the EA's check-for-flooding station id)
  • EA Gauge ID: 055031_TG_329-level-stage-i-15_min-mASD
  • Parameter: Level
  • Unit: mASD
  • Typical rise rate: 1 cm/hr (p95 sustained over 90 days)
  • Typical data delay: ~22 min (measured reading→publication lag)
  • Tidal: No
  • Lock / structure: ⚙ Yes — lock, weir, sluice or pump
  • Catchment Area: Wye
  • Typical Range: 0.129 – 0.408 mASD
  • Drainage Area: 42 km² upstream of this gauge
  • Flow Data: Daily mean flow (m³/s) to 6 Oct (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: 0.04 mASD (EA at 8 Oct 10:00)
  • Flow Archive: National River Flow Archive ↗

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 Stations

Gauges connected to this river, and others nearby. A distance “by river” follows the river on the map; any other is in a straight line.

Connected downstream

Same river system, separate branch

Distances by river: OS Open Rivers. Contains OS data © Crown copyright and database rights 2026.

💧 Storm overflows upstream of this gauge

None of the storm overflows FloodRadar holds is traced upstream of this gauge on the mapped river network. That is not the same as none: the map leaves out many small streams and culverts, so an overflow it cannot place may still drain here, and not every company publishes every overflow. Those nearby are listed below.

Nearby, connection not known

Within 6 km in a straight line, but the river map cannot say whether their water passes this gauge.

💧
Dwr Cymru Welsh Water · into River Wye · 1.6 km away in a straight line · no mapped watercourse close enough to be sure
Not discharging now · last
💧
Dwr Cymru Welsh Water · into Widemarsh Brook · 1.7 km away in a straight line · no mapped watercourse close enough to be sure
2 spills · 1 hours in 2025
Not discharging now · last
💧
Dwr Cymru Welsh Water · into Yazor Brook · 3.8 km away in a straight line · several watercourses close by, nothing to choose between them
3 spills · 7 hours in 2025
Not discharging now · last

17 other overflows within 6 km are downstream of this gauge or on another branch of the river network, so they are not listed.

These are the water companies' monitor statuses; a spill does not by itself explain a change in the gauge level. River connections and distances are traced on OS Open Rivers (edition 2026-04), which leaves out many small channels. Explore the sewage map →

Contains OS data © Crown copyright and database rights 2026.

Rainfall & Weather

Loading rainfall and weather data...

How often this river runs high

In a typical year this gauge reaches its typical high of 0.41 m on about 5 days. This year so far: 6 days.

2026 6 days, 1 of them high · 1 high so far
2025 3 days, 1 of them high · 1 high patchy data
2024 10 days, 5 of them high · 5 high patchy data
2023 0 days patchy data
2022 1 day patchy data
2021 3 days, 1 of them high · 1 high
2020 7 days, 4 of them high · 4 high patchy data
2019 7 days, 4 of them high · 4 high
2018 1 day patchy data
2017 0 days patchy data

Counted from each day's highest reading. Days with missing or implausible readings are left out, so a year marked patchy may have run high more often than shown. The darker part is days above 0.58 m, the level this gauge tops only a few days a year.

Flood history near this gauge

Official Environment Agency warnings issued since 2011 for the 2 flood areas linked to this gauge (nearest 6.1 km away).

1severe warning 1flood warning 127flood alerts

Most recent flood warning: 22 Feb 2020 — River Lugg at Hampton Bishop

Year by year
YearSevereWarningsAlerts
2026 0 0 19
2025 0 0 8
2024 0 0 11
2023 0 0 7
2022 0 0 6
2021 0 0 5
2020 1 1 9
2019 0 0 10
2018 0 0 11
2017 0 0 8
2016 0 0 6
2015 0 0 4
2014 0 0 4
2013 0 0 8
2012 0 0 10
2011 0 0 1

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 Three Elms flood history.

Flood areas linked to this gauge

Flood warnings and alerts are issued for whole areas. These are the 2 areas linked to this gauge, nearest first.

Catchment Character

🌊 Mixed response A balance of quick runoff and slower groundwater baseflow.

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
0.55
mixed response
Avg Annual Rainfall
729 mm/yr
1991–2020 · -2% since 1941–70
Urban Extent
1.5%
largely rural
Highest Daily Mean Flow
4.70 m³/s
16 Feb 2020 · daily mean, not the instantaneous peak
Flow-Duration Curve
mean 0.1880.5480.1230.0135% (high)% of days exceeded95% (low)
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 15%Grassland 32%Arable 47%Urban 6%

Flow affected by: industrial / agricultural abstraction.

About this gauge

A Flat V weir, however record is known to be unreliable in parts, and can experience zero flows during summer.

More detail

The catchment

Low relief catchment containing urban development of western Hereford. Some light industry but land use is mostly arable agriculture developed on Old Red Sandstone marls; extensively covered with glacial sands and gravel, which maintain baseflow in the Yazor Brk.

The station

Flat V weir, theoretically rated, replaced, in 1999, non-standard Flat V Crump (1:5 cross-slopes, 2.5m wide).

Flow regime

Zero flows experienced during summer months. Affected by industrial abstractions from groundwater, which can dominate flow pattern at low flows.

The flow record

Flow record unreliable. Gravel accretion causes rating variability, checked by c/m. Floods contained.

Descriptions from the National River Flow Archive (UKCEH). NRFA station record ↗

Gauge Details

How this gauging station is built and how long it has measured (NRFA / UKCEH).

Gauge type
Flat-V weir
Operating since
1972
Station datum
57.9 mAOD
Flow record
1973–2024 · 51 yrs · 97% complete
Hydrometric area
55
Measured by
Environment Agency

Frequently asked questions

Is the Yazor Brook at Three Elms flooding today?

The current level is 0.04m, which is below the typical range. Flooding is very unlikely at this level.

Is the river level rising or falling at Three Elms?

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 Yazor Brook at Three Elms?

The typical range at this station is 0.13m to 0.41m, based on Environment Agency historical data. Levels above 0.41m 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.

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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:

Check any UK postcode’s flood risk →

🏠 Buying or renting around here? Get the Property Flood-Risk Report for any English postcode — official risk band, recorded floods, warning history, river behaviour and nearby storm overflows. £19 one-off. Learn more →