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1.03

Walthamstow

Ching Brook
Lower Lee catchment • Walthamstow • Greater London • ID: 5378TH • Level
(50m ago) • 4 readings/hr • 163 views

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⤴ Unusual rise — FloodRadar+Top 1% rise rate for this gauge.
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Current Level
1.027 mASD
▬ Steady
24h Max
1.109 mASD
24h Min
1.020 mASD
Typical Range
1.00 - 2.60
mASD
Highest Recorded
4.76 mASD
EA official record
4.76 in our data (since Jul 2002)
Current level is 22% of this
🚽 Sewage overflows nearby

Recent Water Levels

🌍 floodradar.co.uk
1 day

Recent Readings

Rising · +0.6 cm over 6h
08 Oct 16:15 ▼ -0.1 cm 1.027 mASD
08 Oct 16:00 ▼ -0.3 cm 1.028 mASD
08 Oct 15:45 ▲ +0.3 cm 1.031 mASD
08 Oct 15:30 ▬ steady 1.028 mASD
08 Oct 15:15 ▬ steady 1.029 mASD
08 Oct 15:00 ▬ steady 1.028 mASD
08 Oct 14:45 ▬ steady 1.029 mASD
08 Oct 14:30 ▬ steady 1.028 mASD
08 Oct 14:15 ▼ -0.3 cm 1.029 mASD
08 Oct 13:45 ▬ steady 1.032 mASD
08 Oct 13:30 ▲ +1 cm 1.032 mASD
08 Oct 13:15 ▼ -1 cm 1.020 mASD
08 Oct 13:00 ▼ -0.3 cm 1.030 mASD
08 Oct 12:45 ▲ +1 cm 1.033 mASD
08 Oct 12:15 ▬ steady 1.022 mASD
08 Oct 11:45 ▬ steady 1.023 mASD
08 Oct 11:30 ▲ +0.2 cm 1.022 mASD
08 Oct 11:00 ▬ steady 1.020 mASD
08 Oct 10:30 ▬ steady 1.021 mASD
08 Oct 10:15 1.021 mASD

Station Details

  • Monitoring Station: Walthamstow
  • Watercourse: Ching Brook
  • Nearest Town: Walthamstow
  • County: Greater London
  • Coordinates: 51°36'12"N 0°0'44"W (51.603395, -0.012274)
  • Open in: Google Maps · Apple Maps (opens your maps app)
  • Date Opened: 1 Jan 2001
  • Status: Active
  • Station Type: River level station
Technical details: references, datum, range, flow archive
  • Station Reference: 5378TH
  • RLOI id: 7373 (the EA's check-for-flooding station id)
  • EA Gauge ID: 5378TH-level-stage-i-15_min-mASD
  • Parameter: Level
  • Unit: mASD
  • Typical rise rate: 4 cm/hr (p95 sustained over 90 days)
  • Typical data delay: ~22 min (measured reading→publication lag)
  • Tidal: No
  • Lock / structure: No
  • Catchment Area: Lower Lee
  • Typical Range: 0.995 – 2.604 mASD
  • EA Cross-check: 1.03 mASD (EA at 8 Oct 16:15)

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 upstream

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

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.

1 storm overflow is traced upstream of this gauge, the nearest 1.0 km away along the river. 0 report discharging now, 1 reports not discharging.

💧
Thames Water · into Ching Brook · 1.0 km upstream along the river
43 spills · 103 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.

💧
Thames Water · into Lee · 840 m away in a straight line · no mapped watercourse close enough to be sure
0 spills · 0 hours in 2025
Not discharging now · last
💧
Thames Water · into Dagenham Brook · 2.2 km away in a straight line · no mapped watercourse close enough to be sure
6 spills · 114 hours in 2025
Not discharging now · last
💧
Thames Water · into Salmon Brook · 2.8 km away in a straight line · its recorded watercourse is not the one mapped beside it
6 spills · 55 hours in 2025
Not discharging now · last
💧
Thames Water · into Dagenham Brook · 3.5 km away in a straight line · its watercourse is not on the river map
5 spills · 31 hours in 2025
Not discharging now · last
💧
Thames Water · into To The River Roding · 3.8 km away in a straight line · not connected to this gauge on the river map
0 spills · 0 hours in 2025
Not discharging now · last
💧
Thames Water · into Roding · 3.8 km away in a straight line · not connected to this gauge on the river map
3 spills · 1 hours in 2025
Not discharging now · last
💧
Thames Water · into Roding · 3.8 km away in a straight line · not connected to this gauge on the river map
4 spills · 1 hours in 2025
Not discharging now · last
💧
Thames Water · into Roding · 3.8 km away in a straight line · not connected to this gauge on the river map
7 spills · 1 hours in 2025
Not discharging now · last

31 more within 6 km whose connection is not known.

1 other overflow within 6 km is downstream of this gauge or on another branch of the river network, so it is 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...

How often this river runs high

In a typical year this gauge reaches its typical high of 2.60 m on about 1 day. This year so far: 0 days.

2026 0 days so far
2025 0 days
2024 2 days
2023 0 days
2022 1 day
2021 1 day
2020 0 days
2019 0 days
2018 1 day
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 11 flood areas linked to this gauge (nearest 0.5 km away).

9flood warnings 19flood alerts

Most recent flood warning: 27 Nov 2024 — Ching Brook in the London Borough of Waltham Forest

Year by year
YearWarningsAlerts
2026 0 1
2025 0 1
2024 2 6
2023 0 1
2022 1 2
2021 2 3
2019 2 0
2015 0 1
2014 1 3
2009 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 Walthamstow flood history.

Flood areas linked to this gauge

Flood warnings and alerts are issued for whole areas. These are the 11 areas linked to this gauge, nearest first.

Show 3 more

Frequently asked questions

Is the Ching Brook at Walthamstow flooding today?

The current level is 1.03m, which is within the typical range of 1.00 to 2.60m. Flooding is unlikely at this level.

Is the river level rising or falling at Walthamstow?

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 Ching Brook at Walthamstow?

The typical range at this station is 1.00m to 2.60m, based on Environment Agency historical data. Levels above 2.60m 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:

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 →