← Back
⏱ Last reading 3h ago
0.04

Olney

Great Ouse
Upper and Bedford Ouse catchment • Olney • City of Milton Keynes • ID: E21325 • Level
(3h ago) • 4 readings/hr • 534 views

Set water level alerts

Get notified about Olney — tick as many as you like, they all share the notify settings below.

Unusual rise FloodRadar+Top 1% rise rate for this gauge.
Drag the line on the chart, or type a value: mASD
Quick pick:

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 data and are best-efforts. Terms

Last Level
0.037 mASD
⚠ 3h ago · may be out of date
24h Max
0.044 mASD
24h Min
0.037 mASD
Typical Range
0.08 - 0.37
mASD
Highest Recorded
1.17 mASD
24 Dec 2020
Since Nov 2012
Current level is 3% of this
🚽 Sewage overflows nearby

Recent Water Levels

🌍 floodradar.co.uk
1 day

Recent Readings

Falling · -0.4 cm over 5h
23 Aug 20:00 ▬ steady 0.037 mASD
23 Aug 19:45 ▼ -0.1 cm 0.037 mASD
23 Aug 19:30 ▬ steady 0.038 mASD
23 Aug 19:15 ▬ steady 0.038 mASD
23 Aug 19:00 ▬ steady 0.038 mASD
23 Aug 18:45 ▬ steady 0.038 mASD
23 Aug 18:30 ▬ steady 0.038 mASD
23 Aug 18:15 ▼ -0.1 cm 0.038 mASD
23 Aug 18:00 ▬ steady 0.039 mASD
23 Aug 17:45 ▲ +0.1 cm 0.039 mASD
23 Aug 17:30 ▼ -0.1 cm 0.038 mASD
23 Aug 17:15 ▬ steady 0.039 mASD
23 Aug 17:00 ▬ steady 0.039 mASD
23 Aug 16:45 ▬ steady 0.039 mASD
23 Aug 16:30 ▼ -0.1 cm 0.039 mASD
23 Aug 16:15 ▼ -0.1 cm 0.040 mASD
23 Aug 16:00 ▲ +0.1 cm 0.041 mASD
23 Aug 15:45 ▼ -0.1 cm 0.040 mASD
23 Aug 15:30 ▬ steady 0.041 mASD
23 Aug 15:15 0.041 mASD

Rainfall & Weather

Loading rainfall and weather data...

Flood history near this gauge

Official Environment Agency warnings issued since 2008 for the 10 flood areas linked to this gauge (nearest 1.7 km away).

46flood warnings 16flood alerts

Most recent flood warning: 25 Nov 2024River Great Ouse at Harrold

Year by year
YearWarningsAlerts
2026 0 2
2025 0 2
2024 30 4
2021 3 0
2020 6 1
2016 5 1
2014 0 1
2013 0 2
2012 1 3
2008 1 0

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 Olney flood history.

Nearby Stations

Loading nearby stations...

Station Details

  • Monitoring Station: Olney
  • Watercourse: River Great Ouse
  • Nearest Town: Olney
  • County: City of Milton Keynes
  • Nearest reservoir: Pitsford (21.5 km) · 67.6% full (as of 17 Aug 2026)
  • Coordinates: 52°8'51"N 0°42'29"W (52.147499, -0.708027)
  • Open in: Google Maps · Apple Maps (opens your maps app)
  • Date Opened: 13 Nov 1998
  • Status: Active
  • Station Type: River level station
  • Station Reference: E21325
  • EA Gauge ID: E21325-level-stage-i-15_min-mASD
  • Parameter: Level
  • Unit: mASD
  • Typical rise rate: 1 cm/hr (p95 sustained over 90 days)
  • Typical data delay: ~37 min (measured reading→publication lag)
  • Tidal: No
  • Lock / structure: No
  • Catchment Area: Upper and Bedford Ouse
  • Datum: 48.200m AOD
  • Typical Range: 0.075 – 0.372 mASD
  • EA Cross-check: 0.04 mASD (EA at 23 Aug 20:00)

Geographic coordinates may reflect the access point for the gauge, and not the precise location in the watercourse that it is taking readings from.

Frequently asked questions

Is the River Great Ouse at Olney 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 Olney?

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 Great Ouse at Olney?

The typical range at this station is 0.08m to 0.37m, based on Environment Agency historical data. Levels above 0.37m 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:

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, floods since 1946, warning history, river behaviour and nearby storm overflows. £19 one-off. Learn more →