See How Frazil Ice Forms - Videos from The Weather Channel
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See How Frazil Ice Forms

February 8, 2026

Frazil ice is made up of tiny, loose ice crystals that form in fast-moving, supercooled water, such as rivers or streams, during very cold conditions. These needle-like crystals can clump together, creating slushy ice that sticks to rocks, bridges, and underwater structures.