Overnight storm could ice roads | TheUnion.com

Overnight storm could ice roads

A cold and windy storm slated to hit western Nevada County Wednesday night is expected to bring rain at first. It could also leave an inch or two of snow and icy roads as low as 1,000 feet Thursday morning as temperatures drop overnight.

Because of that, the National Weather Service in Sacramento has issued a winter weather advisory for the foothills that will last from 10 p.m. Wednesday night to 10 a.m. Thursday morning.

The weather service said the storm could leave 3 to 6 inches at the 3,000 foot level Thursday morning as well. Winds could create whiteout conditions at times during the night and make travel difficult, particularly for early commuters. The temperature for Grass Valley Thursday morning is expected to be below freezing.

The storm is expected to pass through by noon Thursday, with a break in precipitation in the afternoon. That could be followed by yet another cold storm hitting Thursday night and Friday morning, which could bring several more inches of snow.

The cold systems could produce snow, sleet or hail at any given spot in the Sierra, so motorists are urged to be cautious, the weather service said. Preliminary forecasts call for a mostly cloudy weekend with a possibility of more precipitation starting Sunday.

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