Leeds Knostrop Weir Flood Alleviation Scheme water level

Name: Leeds Knostrop Weir Flood Alleviation Scheme water level (Environment Agency)
Creator: Environment Agency
License: https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/

River gauge, River Aire, West Yorkshire, United Kingdom

Directions

Normal for mid-October

Surface elevation

22.45m Down 0.05 m over the last 24 hours

Measured 20 Oct 2026, 12:00 BST (44 min ago)

History

7 days 30 days 1 year Years compared

20252026

Surface elevation Normal range (10–90 %) Top of normal rangeBottom of normal range

What this means

The River Aire at Leeds Knostrop Weir Flood Alleviation Scheme is at 22.45 m, in the normal range for mid-October.

The median for mid-October is 22.52 m, based on 10 years of readings, so the river level is 0.07 m below typical. On the same day last year the reading was 22.43 m, a difference of +0.01 m.

It has dropped 0.05 m over the past 24 hours. In the last month it has stayed between 17.84 m and 22.64 m.

Autumn rain usually starts to lift rivers again after the summer low.

Compared with 10 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date: 22.52 m0.07 m below the median for this date
Normal for this date: 22.37 m – 22.77 m8 years in 10 fall in this range (10 years of records)
Normal range: 22.36 m – 22.98 m
Same day last year: 22.43 m+0.01 m
Lowest and highest in 30 days: 17.84 m – 22.64 m
Lowest and highest in 12 months: 22.12 m – 23.04 m
Highest on record: 23.53 mJanuary 1, 2025
Lowest on record: 22.30 mFebruary 23, 2018

Fishing and paddling

Paddlers and anglers can expect the river much as they know it, though a heavy shower upstream can change that within hours.

Flood alerts and warnings come from the Environment Agency.

About the River Aire

The River Aire is a major river in Yorkshire, England, 92 miles (148 km) in length. Part of the river below Leeds is canalised, and is known as the Aire and Calder Navigation.

Weather at the gauge

Rain in the last 3 days: 2.0 mm. Rain that falls upstream can take hours or days to show up at a river gauge.

18 Sun 13° 7° – Wind 17 km/h

19 Mon 14° 10° 3.8 mm, 84% Wind 18 km/h

20 Tue 12° 10° 10 mm, 67% Wind 12 km/h

21 Wed 11° 7° 1.3 mm, 60% Wind 23 km/h

22 Thu 12° 5° 2.7 mm, 32% Wind 18 km/h

23 Fri 9° 5° – Wind 22 km/h

24 Sat 11° 5° – Wind 27 km/h

Forecast: Open-Meteo

Sunrise 07:43 AM Sunset 06:00 PM Daylight 10 hr, 17 min First quarter 68%

Map

Other gauges on the River Aire

Gauge	Level	Compared with normal	24 hours	Distance
Leeds Crown Point Flood Alleviation SchemeRiver gauge, River Aire	23.68 m	Low	−0.04 m	2.3 km
Leeds Crown PointRiver gauge, River Aire	0.57 m	Normal	−0.03 m	2.5 km
ArmleyRiver gauge, River Aire	0.46 m	Normal	−0.19 m	4.9 km
Oulton LemonroydRiver gauge, River Aire	0.33 m	Normal	−0.10 m	6.7 km
Kirkstall AbbeyRiver gauge, River Aire	1.48 m	Low	−0.07 m	7.7 km
CastlefordRiver gauge, River Aire	1.18 m	Low	−0.05 m	11 km
Apperley BridgeRiver gauge, River Aire	0.07 m	Lowest on record	−0.19 m	14 km
Ferrybridge LockRiver gauge, River Aire	0.17 m	Normal	+0.01 m	18 km
SaltaireRiver gauge, River Aire	0.37 m	Low	−0.02 m	19 km
Knottingley Bank Dole LockRiver gauge, River Aire	0.58 m	Normal	−0.07 m	20 km
Beal Weir BridgeRiver gauge, River Aire	0.44 m	Normal	−0.07 m	21 km
Cottingley BridgeRiver gauge, River Aire	0.46 m	Normal	−0.02 m	22 km

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
HaltonRiver gauge, Wyke Beck	0.11 m	Normal	−0.05 m	3.4 km
Leeds Killingbeck DamRiver gauge, Wyke Beck	0.10 m	Lowest on record	−0.05 m	3.8 km
Leeds Killingbeck InscreenRiver gauge, Wyke Beck	0.40 m	Low	−0.05 m	3.8 km
Gipton South ParkwayRiver gauge, Wyke Beck	0.05 m	Normal	−0.02 m	4.5 km
WortleyRiver gauge, Wortley Beck	0.10 m	Normal	−0.09 m	4.9 km
Farrer LaneRiver gauge, Oulton Beck	0.11 m	Normal	−0.05 m	5.3 km
LofthouseRiver gauge, Oulton Beck	0.49 m	Normal	−0.08 m	5.6 km

Questions and answers

Is the River Aire at Leeds Knostrop Weir Flood Alleviation Scheme higher than last year?

Yes, it is 0.01 m higher than on the same day last year, when the reading was 22.43 m.

What is a normal level for the River Aire at Leeds Knostrop Weir Flood Alleviation Scheme in mid-October?

The median for mid-October is 22.52 m. In 8 years out of 10 the reading falls between 22.37 m and 22.77 m, based on 10 years of records.

Is Leeds Knostrop Weir Flood Alleviation Scheme really 22.45 m deep?

No. 22.45 m is the height of the water surface above sea level (or the agency's vertical datum), not the depth of the water.

What is the water level of Leeds Knostrop Weir Flood Alleviation Scheme today?

On 20 Oct 2026, 12:00 BST, the surface elevation was 22.45 m. Down 0.05 m over the last 24 hours.

Is Leeds Knostrop Weir Flood Alleviation Scheme rising or falling?

Down 0.05 m over the last 24 hours. Steady over the last 7 days.

Is the level of Leeds Knostrop Weir Flood Alleviation Scheme normal?

Normal for mid-October. Compared with 10 years of daily readings for this time of year.

What is the highest water level ever recorded at Leeds Knostrop Weir Flood Alleviation Scheme?

The highest level on record is 23.53 m on January 1, 2025. The lowest is 22.30 m on February 23, 2018.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: Environment Agency
Station code: ea:L1705A (Agency page)
Coordinates: 53.77690, -1.51212 (WGS84)
Vertical datum: ODN
Update interval: every 15 minutes
Licence: Open Government Licence v3.0. Contains Environment Agency data licensed under the Open Government Licence v3.0

Published series

Parameter	Last value	Time (UTC)	Quality
Surface elevation	22.45 m	2026-10-20 11:00	Provisional

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How to cite

Environment Agency: Leeds Knostrop Weir Flood Alleviation Scheme (ea:L1705A). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-kingdom/west-yorkshire/leeds-knostrop-weir-flood-alleviation-scheme

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer