Heavy Snow in Upper Treasure Valley, Idaho

Heavy Snow January 18, 2023 – January 19, 2023 · Upper Treasure Valley, Idaho

What the National Weather Service wrote

Multiple reports measured 3.0 inches of snow in Star, Eagle, and downtown Boise from the snow storm. The Ada County Sheriff attributed 48 total traffic accidents to the snowfall and resulting slippery road conditions.

The wider storm

A deep upper level trough moved into the Intermountain West, bringing widespread precipitation during the night of January 18th. A cold front passed during the night, changing rain to snow in the Boise metropolitan area which created especially icy and slippery roads.

Source: NOAA Storm Events Database, event 1075969. Narratives are written by the National Weather Service forecast office that issued the report.

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