The “strongest storm of this winter” has prompted officials to issue an Avalanche Watch for parts of the Sierra Nevada, according to the National Weather Service.

The Avalanche Watch will go into effect 7 a.m. Thursday and last until Saturday morning.

The storm will impact the region late Wednesday through Saturday.

Significant snow is almost a guarantee for the Sierra while snowfall in lower elevations could be heavy at times as well, according to the NWS.

Be prepared for treacherous travel in the Sierra with the possibility of extended road closures and delays.

Winds with heavy snow will produce periods of low visibility.

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