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Archive Cat 1 · Minor

Storm Conall

26–27 November 2024 · 2024-25 season · named by KNMI · England

79 mphmax gust
43 mmpeak rainfall
246flood warnings & alerts
Following closely behind Bert, Conall added around 43mm of rain in 24h to already-saturated ground across southern England, causing rail disruption and localised flooding including flooded rail tunnels at Farringdon and Bletchingley.

Flood footprintstorm total

2severe warnings
118flood warnings
126flood alerts
216areas
77counties
128rivers & seas

Worst-hit areas

  • Areas near the River Nene from Elton to Wansford3
  • Lower Stour at Iford Bridge Home Park3
  • River Nene at Billing Aquadrome and nearby business parks3
  • Western Rother3
  • Alconbury Brook in Cambridgeshire2
  • Cuckmere River2

Counties

  • Oxfordshire26
  • Surrey25
  • Hampshire21
  • Worcestershire20
  • Cambridgeshire19
  • West Sussex18

Rivers & seas

  • River Severn24
  • River Thames19
  • River Great Ouse15
  • River Nene13
  • River Stour10
  • River Avon6

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
Grimsbury 367.6
Rainfall station · Isle of Wight 57.0
Rainfall station · Isle of Wight 50.2
Rainfall station · Devon 49.2
Rainfall station · West Sussex 49.1
Rainfall station · Devon 49.0
Rainfall station · West Sussex 46.2
Rainfall station · East Sussex 46.0
Rainfall station · West Sussex 45.4
Rainfall station · Isle of Wight 45.4
Duncton 44.9
Rainfall station · West Sussex 44.8

The riverspeak vs warning level

StationPeak% of warning
Castle Foregate · Bagley Brook 1.56 m 363%
Cappenham · River Tove 1.98 m 340%
Frampton Cotterell · Bristol Frome 1.17 m 338%
Great Somerford · River Avon 2.31 m 330%
Brookhouse Farm · Ford Green Brook 2.94 m 309%
Middlehill · By Brook 2.34 m 304%
Brokenborough · Tetbury Avon 1.50 m 300%
Bitton · River Boyd 1.19 m 298%
Eastington · River Frome (Severn) 2.49 m 291%
Quixhill · River Churnet 2.29 m 290%
Hundred House Bridge · Royal Military Canal 1.28 m 280%
Burton Bradstock · River Bride 1.48 m 279%

Gauge records cover 25–28 November 2024 (the storm window ± a day). Frozen 3 Jul 2026.

Storm Bert All UK storms Storm Darragh

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.