ice storm

Ice storm is a transparent English compound naming a weather event in which freezing rain coats surfaces with a layer of ice called glaze. The term appeared in American English in the nineteenth century, when the phenomenon was common enough in the northeastern and midwestern United States to need a distinct name. Before 'ice storm,' the events were described variously as 'silver thaws,' 'glaze storms,' or 'ice showers.'

The physics is straightforward: rain falls through a warm layer of air and reaches the surface as liquid water, but the surface temperature is below freezing. The water freezes on contact with anything it touches — trees, power lines, roads, buildings. A quarter inch of ice accumulation is enough to bring down power lines. A half inch brings down trees. An inch brings down cell towers and transmission lines.

The North American Ice Storm of January 1998 — which struck Quebec, Ontario, and the northeastern United States — is the most destructive ice storm in recorded history. Over five days, up to 100 millimeters of freezing rain fell. The weight of ice collapsed four million power poles and over a thousand steel transmission towers. Three million people lost electricity, some for over a month. Thirty-five people died. Damage exceeded $5 billion.

The beauty of an ice storm is genuine and terrible. Every surface becomes crystalline. Trees become glass sculptures. Lawns become skating rinks. Sunlight refracts through ice-coated branches in prismatic colors. The beauty lasts until gravity wins, and the ice brings everything down. The word 'storm' does not capture the stillness that follows — the frozen, glittering, broken silence.