Ice storms are a meteorological topic focused on events characterized by significant accretion of ice from freezing rain, typically when a warm layer aloft overlies subfreezing surface air, causing liquid precipitation to supercool and freeze on contact with exposed surfaces. Research on ice storms examines synoptic and mesoscale atmospheric structures, thermodynamic profiles, and microphysical processes that govern droplet supercooling and accretion efficiency. They are studied for their impacts on power infrastructure, vegetation, transportation, and surface hydrology, as well as for their representation in numerical weather prediction models and climate projections regarding changes in frequency, intensity, and spatial distribution under varying temperature regimes.
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