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0.48

Windwhistle

Groundwater Level 💧 Groundwater
Hampshire Avon catchment • Bishopstone • Wiltshire • ID: 431100 • Level
(32m ago) • 4 readings/hr • 160 views

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Current Level
0.478 mASD
▬ Steady
24h Max
0.493 mASD
24h Min
0.478 mASD
Typical Range
0.00 - 11.24
mASD
Highest Recorded
29.94 mASD
EA official record
29.94 in our data (since Mar 2017)
Current level is 2% of this
🚽 Sewage overflows nearby

Recent Water Levels

🌍 floodradar.co.uk
1 day

Recent Readings

Falling · -0.2 cm over 5h
10 Oct 05:15 ▬ steady 0.478 mASD
10 Oct 05:00 ▬ steady 0.478 mASD
10 Oct 04:45 ▬ steady 0.478 mASD
10 Oct 04:30 ▬ steady 0.478 mASD
10 Oct 04:15 ▬ steady 0.478 mASD
10 Oct 04:00 ▼ -0.1 cm 0.478 mASD
10 Oct 03:45 ▬ steady 0.479 mASD
10 Oct 03:30 ▲ +0.1 cm 0.479 mASD
10 Oct 03:15 ▬ steady 0.478 mASD
10 Oct 03:00 ▼ -0.1 cm 0.478 mASD
10 Oct 02:45 ▬ steady 0.479 mASD
10 Oct 02:30 ▬ steady 0.479 mASD
10 Oct 02:15 ▬ steady 0.479 mASD
10 Oct 02:00 ▬ steady 0.479 mASD
10 Oct 01:45 ▬ steady 0.479 mASD
10 Oct 01:30 ▼ -0.1 cm 0.479 mASD
10 Oct 01:15 ▬ steady 0.480 mASD
10 Oct 01:00 ▬ steady 0.480 mASD
10 Oct 00:45 ▬ steady 0.480 mASD
10 Oct 00:30 0.480 mASD

Station Details

  • Monitoring Station: Windwhistle
  • Watercourse: Groundwater Level
  • Nearest Town: Bishopstone
  • County: Wiltshire
  • Coordinates: 51°3'9"N 1°53'1"W (51.052454, -1.883525)
  • Open in: Google Maps · Apple Maps (opens your maps app)
  • Date Opened: 11 Feb 2003
  • Status: Active
  • Station Type: Groundwater (borehole)
Technical details: references, datum, range, flow archive
  • Station Reference: 431100
  • RLOI id: 9272 (the EA's check-for-flooding station id)
  • EA Gauge ID: 431100-level-groundwater-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: No
  • Catchment Area: Hampshire Avon
  • Datum: 60.757m AOD
  • Typical Range: 0.000 – 11.243 mASD
  • EA Cross-check: 0.48 mASD (EA at 10 Oct 05:15)

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.

Nearby

Rainfall & Weather

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How often this river runs high

In a typical year this gauge reaches its typical high of 11.24 m on about 57 days. This year so far: 50 days.

2026 50 days, 10 of them high · 10 high so far
2025 54 days
2024 108 days, 6 of them high · 6 high
2023 76 days, 7 of them high · 7 high
2022 7 days patchy data
2021 51 days
2020 80 days, 5 of them high · 5 high
2019 40 days, 6 of them high · 6 high
2018 45 days
2017 0 days

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 22.46 m, the level this gauge tops only a few days a year.

Flood history near this gauge

Official Environment Agency warnings issued since 2009 for the 9 flood areas linked to this gauge (nearest 2.4 km away).

39flood warnings 105flood alerts

Most recent flood warning: 19 Mar 2026 — Groundwater flooding for the Wylye Valley at Wilton

Year by year
YearWarningsAlerts
2026 13 4
2025 2 11
2024 11 21
2023 3 12
2022 0 2
2021 1 2
2020 2 9
2019 1 5
2018 0 4
2017 0 1
2016 1 6
2014 1 10
2013 2 5
2012 1 12
2011 0 1
2009 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 Bishopstone flood history.

Flood areas linked to this gauge

Flood warnings and alerts are issued for whole areas. These are the 9 areas linked to this gauge, nearest first.

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Frequently asked questions

Is the Groundwater Level at Windwhistle flooding today?

The current level is 0.48m, which is within the typical range of 0.00 to 11.24m. Flooding is unlikely at this level.

Is the river level rising or falling at Windwhistle?

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 Groundwater Level at Windwhistle?

The typical range at this station is 0.00m to 11.24m, based on Environment Agency historical data. Levels above 11.24m 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.

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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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