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Water Level Easing
Easing — down from 0.05 at 07:45, now 0.03
0.03

Furneux Pelham

Ash
Ash (Herts) catchment • Furneux Pelham • Hertfordshire • ID: 5016TH • Level
(25m ago) • 4 readings/hr • 187 views

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Current Level
0.030 mASD
▼ Easing
24h Max
0.054 mASD
24h Min
0.030 mASD
Typical Range
0.13 - 1.43
mASD
Highest Recorded
1.69 mASD
EA official record
A 3.32 reading (7 Feb 2007) sits in our unverified raw history and is not treated as the record
Current level is 2% of this
🚽 Sewage overflows nearby

Recent Water Levels

🌍 floodradar.co.uk
1 day

Recent Readings

Falling · -2 cm over 5h
08 Oct 13:30 ▬ steady 0.030 mASD
08 Oct 13:15 ▬ steady 0.030 mASD
08 Oct 13:00 ▼ -0.1 cm 0.030 mASD
08 Oct 12:45 ▼ -0.3 cm 0.031 mASD
08 Oct 12:30 ▬ steady 0.034 mASD
08 Oct 12:15 ▼ -0.1 cm 0.034 mASD
08 Oct 12:00 ▼ -0.2 cm 0.035 mASD
08 Oct 11:45 ▬ steady 0.037 mASD
08 Oct 11:30 ▼ -0.2 cm 0.037 mASD
08 Oct 11:15 ▼ -0.2 cm 0.039 mASD
08 Oct 11:00 ▲ +0.1 cm 0.041 mASD
08 Oct 10:45 ▼ -0.2 cm 0.040 mASD
08 Oct 10:15 ▼ -0.2 cm 0.042 mASD
08 Oct 10:00 ▼ -0.1 cm 0.044 mASD
08 Oct 09:45 ▲ +0.1 cm 0.045 mASD
08 Oct 09:30 ▼ -0.1 cm 0.044 mASD
08 Oct 09:15 ▬ steady 0.045 mASD
08 Oct 09:00 ▼ -0.2 cm 0.045 mASD
08 Oct 08:45 ▲ +0.1 cm 0.047 mASD
08 Oct 08:30 0.046 mASD

Station Details

  • Monitoring Station: Furneux Pelham
  • Watercourse: River Ash
  • Nearest Town: Furneux Pelham
  • County: Hertfordshire
  • Coordinates: 51°55'50"N 0°5'11"E (51.930418, 0.086394)
  • Open in: Google Maps · Apple Maps (opens your maps app)
  • Date Opened: 1 Jan 2004
  • Status: Active
  • Station Type: River level station
Technical details: references, datum, range, flow archive
  • Station Reference: 5016TH
  • RLOI id: 7345 (the EA's check-for-flooding station id)
  • EA Gauge ID: 5016TH-level-stage-i-15_min-mASD
  • Parameter: Level
  • Unit: mASD
  • Typical rise rate: 3 cm/hr (p95 sustained over 90 days)
  • Typical data delay: ~22 min (measured reading→publication lag)
  • Tidal: No
  • Lock / structure: No
  • Catchment Area: Ash (Herts)
  • Typical Range: 0.130 – 1.430 mASD
  • EA Cross-check: 0.03 mASD (EA at 8 Oct 13:15)

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.

Connected downstream

Same river system, separate branch

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.

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...

How often this river runs high

This gauge rarely reaches its typical high of 1.43 m: 2 days since 2017. This year so far: 0 days.

2026 0 days so far
2025 0 days
2024 0 days
2023 1 day
2022 0 days
2021 1 day
2020 0 days
2019 0 days
2018 0 days
2017 0 days

Counted from each day's highest reading. Days with missing or implausible readings are left out.

Flood history near this gauge

Official Environment Agency warnings issued since 2009 for the 7 flood areas linked to this gauge (nearest 1.9 km away).

7flood warnings 32flood alerts

Most recent flood warning: 14 Jan 2021 — River Stort at Clavering and Manuden

Year by year
YearWarningsAlerts
2024 0 8
2023 0 1
2021 1 4
2020 1 3
2019 0 1
2017 0 1
2016 0 3
2014 3 6
2013 1 2
2012 0 2
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 Furneux Pelham flood history.

Flood areas linked to this gauge

Flood warnings and alerts are issued for whole areas. These are the 7 areas linked to this gauge, nearest first.

Frequently asked questions

Is the River Ash at Furneux Pelham 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 Furneux Pelham?

Based on the most recent readings, the level is currently falling slightly. 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 4.6mm 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.

What is a normal level for the River Ash at Furneux Pelham?

The typical range at this station is 0.13m to 1.43m, based on Environment Agency historical data. Levels above 1.43m 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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🏠 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 →