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⏱ Last reading 7h ago · may be out of date
-0.03

Idmiston

Bourne
Hampshire Avon catchment • Idmiston • Wiltshire • ID: 43158 • Level
(7h ago) • 4 readings/hr • 164 views

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Last Level
-0.030 m
⚠ 7h ago · may be out of date
24h Max
0.029 m
24h Min
-0.030 m
Typical Range
0.00 - 0.60
m
Highest Recorded
0.94 m
EA official record
0.93 in our data (since Nov 2005)
🚽 Sewage overflows nearby

Recent Water Levels

🌍 floodradar.co.uk
1 day

Recent Readings

Falling · -5 cm over 5h
23 Aug 16:00 ▬ steady -0.030 m
23 Aug 15:45 ▬ steady -0.029 m
23 Aug 15:30 ▼ -0.1 cm -0.029 m
23 Aug 15:15 ▼ -0.2 cm -0.028 m
23 Aug 15:00 ▬ steady -0.026 m
23 Aug 14:45 ▼ -0.2 cm -0.025 m
23 Aug 14:30 ▼ -0.2 cm -0.023 m
23 Aug 14:15 ▼ -0.2 cm -0.021 m
23 Aug 14:00 ▼ -0.3 cm -0.019 m
23 Aug 13:45 ▼ -0.2 cm -0.016 m
23 Aug 13:30 ▼ -0.2 cm -0.014 m
23 Aug 13:15 ▼ -0.3 cm -0.012 m
23 Aug 13:00 ▼ -0.4 cm -0.009 m
23 Aug 12:45 ▼ -0.4 cm -0.005 m
23 Aug 12:30 ▼ -0.4 cm -0.001 m
23 Aug 12:15 ▼ -0.5 cm 0.003 m
23 Aug 12:00 ▼ -0.4 cm 0.008 m
23 Aug 11:45 ▼ -0.3 cm 0.012 m
23 Aug 11:30 ▼ -0.2 cm 0.015 m
23 Aug 11:15 0.017 m

Rainfall & Weather

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Flood history near this gauge

Official Environment Agency warnings issued since 2012 for the 6 flood areas linked to this gauge (nearest 0.9 km away).

25flood warnings 40flood alerts

Most recent flood warning: 10 Feb 2026River Bourne at Southampton Road Industrial Park, Salisbury

Year by year
YearWarningsAlerts
2026 1 18
2025 1 3
2024 12 7
2023 1 4
2020 1 3
2019 0 2
2014 7 1
2013 1 1
2012 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. See also the Idmiston flood history.

Nearby Stations

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Station Details

  • Monitoring Station: Idmiston
  • Watercourse: River Bourne
  • Nearest Town: Idmiston
  • County: Wiltshire
  • Coordinates: 51°8'13"N 1°43'13"W (51.137063, -1.720230)
  • Open in: Google Maps · Apple Maps (opens your maps app)
  • Date Opened: 1 Jan 1991
  • Status: Active
  • Station Type: River level station
  • Station Reference: 43158
  • EA Gauge ID: 43158-level-stage-i-15_min-m
  • Parameter: Level
  • Unit: m
  • Typical rise rate: 0 cm/hr (p95 sustained over 90 days)
  • Typical data delay: ~22 min (measured reading→publication lag)
  • Tidal: No
  • Lock / structure: No
  • Catchment Area: Hampshire Avon
  • Typical Range: 0.000 – 0.600 m
  • EA Cross-check: -0.03 m (EA at 23 Aug 16:00)

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 Bourne at Idmiston flooding today?

The current level is -0.03m, which is below the typical range. Flooding is very unlikely at this level.

Is the river level rising or falling at Idmiston?

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.

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 Bourne at Idmiston?

The typical range at this station is 0.00m to 0.60m, based on Environment Agency historical data. Levels above 0.60m 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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🏠 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 →