Early Thursday morning saw the first snowfall of the season on Donner Pass, California, bringing initial challenges for those crossing the Sierra Nevada.

The main issue: The snow led to mandatory brake checks for trucks on westbound I-80, just half a mile from Nyack in Placer County.

• This measure is aimed at reducing brake fires which can happen due to slick, winter conditions.
• Drivers without snow tires or four-wheel-drive were required to use chains.

Weather watch: The snow is part of a larger weather system expected to clear by Thursday afternoon, with another storm predicted for Friday night, bringing potentially heavier snowfall, according to Reno Gazette Journal.

• This upcoming system might dump up to 6 inches of snow on the pass, while higher elevations could see 2 feet through Saturday morning.

For truckers: Always be prepared for such sudden weather changes, especially when crossing mountain passes in winter. Stay cautious and ensure safety checks are performed on your vehicle.

Thankfully, despite the snow's arrival, traffic remained smooth, and no injuries were reported. The road was expected to clear by the afternoon.