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⏱ Last reading 2h ago

UDIAM GS

Unknown
• East Sussex • ID: E5850 • Flow
(2h ago) • 1 reading/hr • 124 views
Last Flow
0.201 m3/s
⚠ 2h ago · may be out of date
24h Max
0.218 m3/s
24h Min
0.198 m3/s
Typical Range
-
Highest Recorded
49.24 m3/s
16 Jan 2026
Since Feb 2025
🚽 Sewage overflows nearby

Recent Flow Readings

🌍 floodradar.co.uk
1 day

Recent Readings

Falling · -1.0 cm over 7h
09 Oct 20:30 ▼ -0.4 cm 0.201 m3/s
09 Oct 18:00 ▼ -0.3 cm 0.205 m3/s
09 Oct 17:45 ▬ steady 0.208 m3/s
09 Oct 17:30 ▲ +0.3 cm 0.208 m3/s
09 Oct 17:15 ▼ -0.3 cm 0.205 m3/s
09 Oct 17:00 ▬ steady 0.208 m3/s
09 Oct 16:45 ▬ steady 0.208 m3/s
09 Oct 16:30 ▼ -0.3 cm 0.208 m3/s
09 Oct 16:15 ▬ steady 0.211 m3/s
09 Oct 16:00 ▬ steady 0.211 m3/s
09 Oct 15:45 ▬ steady 0.211 m3/s
09 Oct 15:30 ▬ steady 0.211 m3/s
09 Oct 15:15 ▬ steady 0.211 m3/s
09 Oct 15:00 ▬ steady 0.211 m3/s
09 Oct 14:45 ▬ steady 0.211 m3/s
09 Oct 14:30 ▬ steady 0.211 m3/s
09 Oct 14:15 ▬ steady 0.211 m3/s
09 Oct 14:00 ▬ steady 0.211 m3/s
09 Oct 13:45 ▬ steady 0.211 m3/s
09 Oct 13:30 0.211 m3/s

Station Details

  • Monitoring Station: UDIAM GS
  • Watercourse: —
  • County: East Sussex
  • Nearest reservoir: Powdermill (5.4 km) · 31.5% full (as of 31 Aug 2026)
  • Coordinates: 50°59'30"N 0°31'27"E (50.991791, 0.524305)
  • 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: E5850
  • Also at this site: Udiam (E5852, level, reporting)
  • EA Gauge ID: E5850-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 upstream

Nearby

At this site

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.

4 storm overflows are traced upstream of this gauge, the nearest 4.9 km away along the river. 0 report discharging now, 4 report not discharging.

💧
Southern Water · into Freshwater River · 4.9 km upstream along the river
71 spills · 304 hours in 2025
Not discharging now · last
Placed on the river by its position alone.
💧
Southern Water · into Tributary Of River Rother · 7.8 km upstream along the river
6 spills · 38 hours in 2025
Not discharging now · last
💧
Southern Water · into River Dudwell · 17.0 km upstream along the river
99 spills · 1,302 hours in 2025
Not discharging now · last
💧
Southern Water · into River Rother · 28.5 km upstream along the river
30 spills · 123 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.

💧
Southern Water · into Abbey Petty Sewer · 3.1 km away in a straight line · reaches the river through a sewer or culvert
30 spills · 292 hours in 2025
Not discharging now · last
💧
Southern Water · into The River Tillingham · 3.1 km away in a straight line · its watercourse is not on the river map
20 spills · 130 hours in 2025
Not discharging now · last
💧
Southern Water · into Robertsbridge Petty Sewer · 3.4 km away in a straight line · reaches the river through a sewer or culvert
14 spills · 52 hours in 2025
Not discharging now · last
💧
Southern Water · into Freshwater River · 5.0 km away in a straight line · no mapped watercourse close enough to be sure
17 spills · 93 hours in 2025
Not discharging now · last
💧
Southern Water · into Tributary Of River Rother · 5.6 km away in a straight line · its watercourse is not on the river map
40 spills · 242 hours in 2025
Not discharging now · last

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 3 flood areas linked to this gauge (nearest 1.7 km away).

11flood warnings 101flood alerts

Most recent flood warning: 1 Jan 2023 — River Rother at Robertsbridge

Year by year
YearWarningsAlerts
2026 0 4
2025 0 5
2024 0 12
2023 1 7
2022 3 7
2021 0 6
2020 3 11
2019 2 10
2018 0 4
2017 0 4
2016 0 10
2015 0 3
2014 0 4
2013 2 5
2012 0 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 3 areas linked to this gauge, nearest first.

Frequently asked questions

Is UDIAM GS flooding today?

The latest recorded level is 0.20m. 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 UDIAM GS?

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 7.0mm 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.

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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 →