heart attack snow
n.— «With temperatures within striking distance of freezing during much of this precipitation event, the snow which falls is to be heavy and fairly wet—what’s often referred to as “good packing” or “heart attack” snow. The weight of such snow means it must be shoveled with extreme care to avoid a heart attack.» —“Major winter storm on the way” by Tom Skilling WGN Weather Center Blog Feb. 5, 2008. (source: Double-Tongued Dictionary)
Further reading
Diamond dust, tapioca snow, and sugar icebergs — a 1955 glossary of arctic and subarctic terms describes the environment in ways that sound poetic. And a mom says her son is dating someone who’s non-binary. She supports their relationship, but...
It was a dark and stormy night. So begins the long and increasingly convoluted prose of Edwards Bulwer-Lytton’s best-known novel. Today the annual Bulwer-Lytton Contest asks contestants for fanciful first sentences that are similarly...
Storms like this I have also heard called, in New England, “Widowmakers”