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Archive Cat 1 · Minor

Storm Lilian

22–23 August 2024 · 2023-24 season · named by Met Office · England, Wales, Scotland

73 mphmax gust
146flood warnings & alerts
An unusually strong late-summer storm with gusts to ~73mph across Wales and northern England that felled trees and cut power in East Yorkshire and Lincolnshire; heavy rain prompted flood warnings, with up to ~50mm over high ground.

Flood footprintstorm total

0severe warnings
29flood warnings
117flood alerts
96areas
53counties
47rivers & seas

Worst-hit areas

  • The Essex coast from Clacton to and including, St Peters Flat and the Colne and Blackwater estuaries5
  • Coast at Barrow in Furness4
  • Coast at North Morecambe Bay4
  • Coast from Heysham to Cockerham4
  • Lune estuary south west of Lancaster4
  • Tidal Thames riverside from Putney Bridge to Teddington Weir4

Counties

  • Lancashire25
  • Cumberland23
  • Westmorland and Furness21
  • East Riding of Yorkshire19
  • North Somerset8
  • Essex7

Rivers & seas

  • Irish Sea27
  • North Sea24
  • Bristol Channel7
  • River Thames7
  • The Humber7
  • English Channel6

Flood mapthe storm's flood footprint

Red/amber rings mark rivers that reached or came close to their own high level during the storm — the most direct evidence of likely flooding (the gauge measures the river, not any one property). Solid dots mark each flood area's reference point, coloured by the most severe warning raised there — a warning means flooding was expected. Shaded shapes are the Environment Agency's recorded flood outlines: land actually observed flooded, published retrospectively (updated quarterly). England data only.

The rainstorm-total by gauge

GaugeTotal mm
Rainfall station · West Midlands 291.2
Rainfall station · Cumberland 256.0
Ennerdale Black Sail 228.4
Rainfall station · Cumberland 211.4
Rainfall station · Westmorland and Furness 166.6
Rainfall station · Cumberland 163.4
Rainfall station · Westmorland and Furness 155.3
Ennerdale Starling Gill 147.2
Brotherswater 126.6
Rainfall station · Cumberland 125.9
Rainfall station · Westmorland and Furness 120.7
Rainfall station · Cumberland 119.6

The riverspeak vs warning level

StationPeak% of warning
Mansfield The Dykes · River Maun 3.08 m 308%
Wensor Bridge, Shelton · River Devon 4.79 m 281%
Holbeam Dam Downstream · River Lemon 1.59 m 215%
Hynam Bridge · River Gelt 1.57 m 212%
Whitewater Bridge · River Maun 1.59 m 199%
Kielder Butteryhaugh · River North Tyne 1.04 m 186%
Holbeam Dam · River Lemon 1.37 m 185%
Scalehill Upper Lorton Valley · River Cocker 1.76 m 181%
Brookhouse Farm · Ford Green Brook 1.67 m 176%
Warwick Bridge · Trout Beck 0.87 m 174%
Lodore · Derwentwater 2.38 m 170%
Galesyke · River Irt 1.38 m 162%

Gauge records cover 21–24 August 2024 (the storm window ± a day). Frozen 3 Jul 2026.

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FloodRadar compiles Environment Agency warning history, gauge data and public reporting. It is not an emergency service and does not replace official flood warnings — always follow official guidance during a storm.