A megacryometeor is a very large chunk of ice which, despite sharing many textural, hydro-chemical, and isotopic features found in large hailstones, is formed under unusual atmospheric conditions which clearly differ from those of the cumulonimbus cloud scenario (e.g. clear-sky conditions). They are sometimes called huge hailstones, but do not need to form under thunderstorm conditions unlike hailstorms.
A megacryometeor is a very large chunk of ice which, despite sharing many textural, hydro-chemical, and isotopic features found in large hailstones, is formed under unusual atmospheric conditions which clearly differ from those of the cumulonimbus cloud scenario (e.g. clear-sky conditions). They are sometimes called huge hailstones, but do not need to form under thunderstorm conditions unlike hailstorms.
==Mass and size== More than 50 megacryometeors have been recorded since the year 2000. They vary in mass between to several tens of kilograms. One in Brazil weighed in at more than . Chunks about in size also fell in Scotland on 13 August 1849.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).