The winter of 2013–20142013\text{--}20142013–2014 saw severe and prolonged flooding in the Somerset Levels, a low-lying coastal plain and wetland area in South West England. Which of the following outlines the primary meteorological and physical causes of this major UK weather hazard?
A sudden stratospheric warming event that triggered rapid melt of upland snowpacks, combined with a major storm surge in the North Sea.
A series of deep Atlantic depressions bringing record-breaking rainfall, coinciding with high spring tides and saturated catchment basins.
A persistent high-pressure blocking pattern over Scandinavia that redirected intense summer convective thunderstorms, causing rapid flash floods.
A localized tropical maritime air mass collision that generated a stationary front, leading to severe coastal erosion and tsunami-like estuary bores.
