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Archive Cat 2 · Moderate

Storm Herminia

26–27 January 2025 · 2024-25 season · named by Meteo-France · England, Ireland

83 mphmax gust
309flood warnings & alerts
Following Eowyn, Herminia brought 83mph gusts at Berry Head and power cuts to over 4,500 properties in Devon and Cornwall; its main impact was catastrophic flooding in western France, with UK effects confined to the south-west.

Flood footprintstorm total

0severe warnings
78flood warnings
231flood alerts
289areas
76counties
207rivers & seas

Worst-hit areas

  • Burton Trent2
  • Climping Seafront2
  • Danes Stream2
  • Isle of Wight coast2
  • Lymington River2
  • Mansbridge and Riverside Park2

Counties

  • Wiltshire39
  • Dorset Council38
  • Somerset34
  • Devon34
  • Hampshire30
  • Gloucestershire22

Rivers & seas

  • English Channel10
  • Hampshire River Avon7
  • River Stour7
  • Bristol River Avon6
  • River Thames6
  • Dorset Frome5

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
White Barrow 98.7
East Okement 97.8
Dartmoor Fernworthy 92.5
Holne Priddons Farm 90.9
Prewley 89.5
Bellever Dartmoor 86.5
Rainfall station · Devon 83.8
Princetown 82.0
Mickleden Middle Fell Farm 81.6
Downhead 81.3
Seathwaite Tarn 80.6
Rainfall station · Devon 79.4

The riverspeak vs warning level

StationPeak% of warning
Prestbury Road · Wymans Brook 0.20 m 400%
Clifton Hall · River Mease 5.56 m 376%
Walkern · River Beane 4.10 m 335%
Shipston · River Stour 3.08 m 318%
Zoons Court · Horsbere Brook 2.58 m 306%
Crabb Mill · Woodbridge Brook 2.00 m 295%
Stanford Bridge · River Teme 3.92 m 287%
Worksop · River Ryton 2.97 m 283%
Tubbs Bottom · Bristol Frome 1.63 m 276%
Stanley · River Marden 2.99 m 271%
Ewyas Harold · Dulas Brook 1.34 m 268%
Pewsey · River Avon 0.49 m 268%

Gauge records cover 25–28 January 2025 (the storm window ± a day). Frozen 3 Jul 2026.

Storm Eowyn All UK storms Storm Floris

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.