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M27 TV1

Unknown
• Hampshire • ID: E13423 • Flow
(35m ago) • 4 readings/hr • 170 views
Current Flow
0.607 m3/s
▬ Steady
24h Max
0.620 m3/s
24h Min
0.599 m3/s
Typical Range
-
Highest Recorded
20.42 m3/s
27 Jan 2026
Since Feb 2025
🚽 Sewage overflows nearby

Recent Flow Readings

🌍 floodradar.co.uk
1 day

Recent Readings

Rising · +0.6 cm over 5h
10 Oct 13:00 ▲ +0.3 cm 0.607 m3/s
10 Oct 12:45 ▼ -0.1 cm 0.604 m3/s
10 Oct 12:30 ▲ +0.1 cm 0.605 m3/s
10 Oct 12:15 ▬ steady 0.604 m3/s
10 Oct 12:00 ▼ -0.1 cm 0.604 m3/s
10 Oct 11:45 ▼ -0.2 cm 0.605 m3/s
10 Oct 11:30 ▲ +0.1 cm 0.607 m3/s
10 Oct 11:15 ▼ -0.2 cm 0.606 m3/s
10 Oct 11:00 ▲ +0.4 cm 0.608 m3/s
10 Oct 10:45 ▬ steady 0.604 m3/s
10 Oct 10:30 ▼ -0.2 cm 0.604 m3/s
10 Oct 10:15 ▲ +0.3 cm 0.606 m3/s
10 Oct 10:00 ▲ +0.1 cm 0.603 m3/s
10 Oct 09:45 ▼ -0.1 cm 0.602 m3/s
10 Oct 09:30 ▼ -0.1 cm 0.603 m3/s
10 Oct 09:15 ▲ +0.4 cm 0.604 m3/s
10 Oct 09:00 ▼ -0.1 cm 0.600 m3/s
10 Oct 08:45 ▼ -0.2 cm 0.601 m3/s
10 Oct 08:30 ▲ +0.2 cm 0.603 m3/s
10 Oct 08:15 0.601 m3/s

Station Details

  • Monitoring Station: M27 TV1
  • Watercourse: —
  • County: Hampshire
  • Coordinates: 50°56'45"N 1°30'21"W (50.945719, -1.505873)
  • 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: E13423
  • EA Gauge ID: E13423-flow--i-15_min-m3_s
  • Parameter: Flow
  • Unit: m3/s
  • Typical rise rate: 2 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 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

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.

💧
Brunel Road Wps🦪 Shellfish
Southern Water · into River Test Estuary · 3.5 km away in a straight line · discharges to the sea, an estuary or tidal water
0 spills · 0 hours in 2025
No live feed for this overflow
💧
Southern Water · into Bartley Water · 3.9 km away in a straight line · not connected to this gauge on the river map
6 spills · 39 hours in 2025
Not discharging now · last
💧
Downs Park Totton CEO🦪 Shellfish
Southern Water · into Bartley Water (Tidal) · 4.0 km away in a straight line · discharges to the sea, an estuary or tidal water
12 spills · 70 hours in 2025
Not discharging now · last
💧
Southern Water · into River Blackwater · 4.2 km away in a straight line · not connected to this gauge on the river map
101 spills · 1,303 hours in 2025
Not discharging now · last
💧
Southern Water · into Tadburn Lake · 4.7 km away in a straight line · discharges to a loch, lake or reservoir
0 spills · 0 hours in 2025
Not discharging now · last
💧
Southern Water · into River Blackwater · 4.8 km away in a straight line · not connected to this gauge on the river map
25 spills · 239 hours in 2025
Not discharging now · last
💧
Southern Water · into Pollards Moor Stream · 4.9 km away in a straight line · its recorded watercourse is not the one mapped beside it
0 spills · 0 hours in 2025
Not discharging now · last
💧
Southern Water · into Unnamed Trib. Of River Test · 5.0 km away in a straight line · its watercourse is not on the river map
9 spills · 58 hours in 2025
Not discharging now · last

3 more within 6 km whose connection is not known.

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 2012 for the 10 flood areas linked to this gauge (nearest 2.0 km away).

83flood warnings 208flood alerts

Most recent flood warning: 19 Feb 2026 — Rushington and Eling on the Bartley Water

Year by year
YearWarningsAlerts
2026 5 8
2025 7 13
2024 12 45
2023 4 20
2022 1 8
2021 0 5
2020 13 33
2019 1 14
2018 0 2
2017 0 3
2016 4 14
2015 1 2
2014 25 20
2013 4 12
2012 6 9

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 10 areas linked to this gauge, nearest first.

Show 2 more

Frequently asked questions

Is M27 TV1 flooding today?

The latest recorded level is 0.61m. 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 M27 TV1?

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.

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 0.0mm 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.

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 →