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Flow Falling

WATERHALL BLETCHLEY FGS

Unknown
• City of Milton Keynes • ID: E21501 • Flow
(26m ago) • 4 readings/hr • 101 views
Current Flow
0.421 m3/s
▼ Falling (-1cm/hr)
24h Max
0.467 m3/s
24h Min
0.378 m3/s
Typical Range
-
Highest Recorded
25.08 m3/s
16 Feb 2026
Since Feb 2025
🚽 Sewage overflows nearby

Recent Flow Readings

🌍 floodradar.co.uk
1 day

Recent Readings

Falling · -5 cm over 6h
08 Oct 13:30 ▬ steady 0.421 m3/s
08 Oct 13:15 ▼ -0.5 cm 0.421 m3/s
08 Oct 13:00 ▼ -0.4 cm 0.426 m3/s
08 Oct 12:45 ▼ -0.5 cm 0.430 m3/s
08 Oct 12:30 ▬ steady 0.435 m3/s
08 Oct 12:15 ▼ -0.4 cm 0.435 m3/s
08 Oct 12:00 ▼ -0.5 cm 0.439 m3/s
08 Oct 11:45 ▬ steady 0.444 m3/s
08 Oct 11:30 ▼ -0.5 cm 0.444 m3/s
08 Oct 11:15 ▬ steady 0.449 m3/s
08 Oct 11:00 ▼ -0.4 cm 0.449 m3/s
08 Oct 10:45 ▬ steady 0.453 m3/s
08 Oct 10:30 ▼ -0.5 cm 0.453 m3/s
08 Oct 10:00 ▬ steady 0.458 m3/s
08 Oct 09:45 ▬ steady 0.458 m3/s
08 Oct 09:30 ▼ -0.5 cm 0.458 m3/s
08 Oct 09:15 ▬ steady 0.463 m3/s
08 Oct 08:45 ▬ steady 0.463 m3/s
08 Oct 08:30 ▼ -0.4 cm 0.463 m3/s
08 Oct 08:00 0.467 m3/s

Station Details

  • Monitoring Station: WATERHALL BLETCHLEY FGS
  • Watercourse: —
  • County: City of Milton Keynes
  • Coordinates: 51°58'51"N 0°42'57"W (51.980790, -0.715813)
  • Open in: Google Maps · Apple Maps (opens your maps app)
  • Status: Active
  • Station Type: Flow gauging station (inferred)
Technical details: references, datum, range, flow archive
  • Station Reference: E21501
  • EA Gauge ID: E21501-flow-stage-i-15_min-m3_s
  • Parameter: Flow
  • Unit: m3/s
  • Typical rise rate: 4 cm/hr (p95 sustained over 90 days)
  • Typical data delay: ~22 min (measured reading→publication lag)
  • Tidal: No
  • Lock / structure: No

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 upstream

Connected downstream

Same river system, separate branch

Nearby

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

💧 Storm overflows upstream of this gauge

Storm overflows whose water reaches this gauge on the mapped river network, nearest first by distance along the river. The status is each water company's monitor: it says whether an overflow is discharging, not how much or what it contains.

7 storm overflows are traced upstream of this gauge, the nearest 10.7 km away along the river. 0 report discharging now, 7 report not discharging.

💧
Anglian Water · into River Ouzel · 10.7 km upstream along the river
16 spills · 275 hours in 2025
Not discharging now · last
💧
Anglian Water · into River Ouzel · 11.9 km upstream along the river
25 spills · 21 hours in 2025
Not discharging now · last
💧
Anglian Water · into River Ouzel · 12.3 km upstream along the river
1 spill · 1 hours in 2025
Not discharging now · last
💧
Anglian Water · into River Ouzel · 14.0 km upstream along the river
5 spills · 7 hours in 2025
Not discharging now · last
💧
Anglian Water · into Ouzel Brook & Trib Ouzel Bk Nt · 21.4 km upstream along the river
39 spills · 554 hours in 2025
Not discharging now · last
💧
Anglian Water · into Coombe Bottom Brook, R Ouzel · 21.8 km upstream along the river
45 spills · 550 hours in 2025
Not discharging now · last
Placed on the river by its position alone.
💧
Anglian Water · into The Ouzel Brook · 26.0 km upstream along the river
0 spills · 0 hours in 2025
Not discharging now · last

Nearby, connection not known

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

💧
Anglian Water · into Brickhill Brook River Ouzel Nt · 3.3 km away in a straight line · its watercourse is not on the river map
16 spills · 49 hours in 2025
Not discharging now · last
💧
Anglian Water · into Tributary River Ouzel · 4.8 km away in a straight line · no mapped watercourse close enough to be sure
55 spills · 165 hours in 2025
Monitor offline: it cannot say whether it is discharging

2 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...

Flood history near this gauge

Official Environment Agency warnings issued since 2019 for the 7 flood areas linked to this gauge (nearest 1.5 km away).

56flood warnings 20flood alerts

Most recent flood warning: 5 Jan 2025 — Water Eaton Brook at Water Eaton

Year by year
YearWarningsAlerts
2025 1 3
2024 44 11
2021 7 2
2020 3 3
2019 1 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.

Flood areas linked to this gauge

Flood warnings and alerts are issued for whole areas. These are the 7 areas linked to this gauge, nearest first.

Frequently asked questions

Is WATERHALL BLETCHLEY FGS flooding today?

The latest recorded level is 0.42m. Compare it with the recent history on the chart above to judge whether levels are unusually high.

Is the river level rising or falling at WATERHALL BLETCHLEY FGS?

Based on the most recent readings, the level is currently falling. 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. Only about 7.4mm of rain has fallen nearby in the last 7 days, so the flow is being sustained mainly by groundwater. 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.

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.

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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 →