Heavy Snow in Unicoi, Tennessee

Heavy Snow December 21, 2018 · Unicoi, Tennessee

What the National Weather Service wrote

Four inches of snow was reported at Iron Mountain.

The wider storm

A strong low pressure system shifted northeast out of the Lower Mississippi Valley with a track crossing the extreme southern end of the Southern Appalachian Mountains in Southeast Tennessee and Southwest North Carolina. The strong southerly flow with this system produced mainly rainfall across the region, but as the low pressure center moved east into the Western Carolinas, orographic snowfall developed as temperatures dropped below freezing in the cold northwesterly flow behind the departing storm system.

Source: NOAA Storm Events Database, event 793001. Narratives are written by the National Weather Service forecast office that issued the report.

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