4–6 December 2015 · 2015-16 season · named by Met Office · England, Scotland, Wales, Northern Ireland
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.
| Gauge | Total mm |
|---|---|
| Thirlmere St Johns Beck | 467.8 |
| Honister | 440.0 |
| Brotherswater | 437.9 |
| Dale Head | 398.2 |
| Wet Sleddale | 361.0 |
| Burnbanks | 333.2 |
| Ennerdale Black Sail | 295.2 |
| Seathwaite Farm | 292.8 |
| Orton - Shallowford | 291.4 |
| Brathay Hall | 289.6 |
| Demings Moss | 289.4 |
| High Row | 276.6 |
| Station | Peak | % of warning |
|---|---|---|
| Castle Foregate · Bagley Brook | 1.58 m | 367% |
| Brookhouse Farm · Ford Green Brook | 3.21 m | 338% |
| Thirlmere · St Johns Beck | 3.26 m | 326% |
| Sands Centre, Carlisle · River Eden | 7.90 m | 316% |
| Waren Mill · Waren Burn | 1.17 m | 300% |
| Lodore · Derwentwater | 4.03 m | 288% |
| High River Keer · River Keer | 2.58 m | 287% |
| Riding Mill · River Tyne | 5.99 m | 285% |
| Stock Beck, Jewsons Yard · Stock Beck | 1.69 m | 282% |
| Far Sawrey · Windermere | 2.82 m | 282% |
| Portinscale · River Derwent | 3.73 m | 281% |
| Roe Bridge · River Brock | 4.20 m | 280% |
Gauge records cover 3–7 December 2015 (the storm window ± a day). Frozen 3 Jul 2026.
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.
