The vast winter storm that battered much of the U.S. over the weekend continued to disrupt thousands of flights on Monday, with more than 560,000 customers from West Texas to Maine going without power for a third day.

Major air carriers said they would resume operations on Monday as conditions improved, the WSJ’s Gareth Vipers, Joseph de Avila and Dean Seal report. Around 21,000 flights in or out of U.S. airports had been canceled due to the storm, according to FlightAware, although restrictions on flights were easing on Monday.

United Parcel Service said in an alert that the storm was disrupting service for nearly 5,000 ZIP codes as of Monday afternoon, with the severe weather affecting operations at its main hub in Kentucky. More than 90 FedEx Freight facilities remained closed on Monday, while a U.S. Postal Service alert said transportation and delivery of mail in 26 states and the District of Columbia could be affected.

The South was hit the hardest by power outages, with Tennessee reporting 186,000 customers without electricity, while Mississippi had about 144,000 and Louisiana had 104,000 as of Monday night.

• Nvidia said it is making it easier to track changes in the weather and climate with a new suite of open-source AI models to help users gather hyperspecific data. (WSJ)

The U.S. government plans to inject $1.6 billion into USA Rare Earth, the latest move by the Trump administration to shore up the domestic supply of rare-earth minerals and ease China’s chokehold on the critical materials.

USA Rare Earth said the nonbinding letter of intent from the Commerce Department’s CHIPS Program would cover a proposed $1.3 billion senior secured loan, alongside $277 million in proposed federal funding. As part of the transaction, the company would give the Commerce Department 16.1 million shares and about 17.6 million warrants.

The move is the latest example of the federal government working to build a more robust domestic supply chain for the minerals, the Journal’s Elias Schisgall writes. In November, Vulcan Elements got a $620 million Defense Department loan, alongside $50 million from the Commerce Department, in a deal to build and operate a U.S. magnet facility. The government has also taken stakes in MP Materials, the country’s largest rare-earths miner.

Nike said it was laying off about 775 workers as it ramps up its use of advanced technology and automation, part of a broader turnaround strategy. The cuts will primarily affect workers at its distribution centers across Tennessee and Mississippi, and amount to about 1% of its overall workforce, the WSJ’s Kelly Cloonan writes. Nike employed about 77,800 workers worldwide as of its latest annual filing.

The move is part of Nike's efforts to strengthen and streamline operations, the company said. Nike has sought to gain ground on its turnaround despite tariffs and ongoing weakness in China dampening its efforts. The company recently shook up its leadership, working to be more nimble like competitors that have gained ground in the sneaker and athleticwear market.

• The U.S. will increase tariffs on South Korea from 15% to 25%, Trump posted, saying Seoul hadn’t moved fast enough to implement a trade pact. (WSJ)
• Tariff threats and a possible U.S. government shutdown drew investors to silver and gold, with both precious metals surging to new highs. (WSJ)
• U.S. durable-goods demand climbed by a higher-than-expected 5.3% in November from the month before, compared with a 2.1% decline in October, according to delayed Commerce Department data. (Dow Jones Newswires)
• Canadian Prime Minister Mark Carney said Trump’s tariff threats likely represent some prepositioning ahead of negotiations later this year to renew the U.S.-Mexico-Canada trade pact. (WSJ)
• German truck maker Traton and self-driving truck startup PlusAI agreed to expand their partnership to accelerate the deployment of autonomous trucks in the U.S. and Europe. (WSJ)
• Nvidia is pouring an additional $2 billion into CoreWeave, with the companies saying they would build new AI factories, with a goal of 5 gigawatts of capacity by 2030. (WSJ)
• A German government-sponsored platform to link suppliers with the defense industry has attracted about 500 companies, with as many as 90% having no previous experience with military products. (Bloomberg)
• Houthi militants released threatening video footage of previous attacks on Red Sea shipping, with a caption saying “soon,” as tensions rise between the U.S. and Iran.  (Journal of Commerce)
• Amazon Prime Air is proceeding with testing of drone delivery in the U.K., but scrapping a similar effort in Italy. (SupplyChain24/7)

Mark R. Long is editor of WSJ Logistics Report. Reach him at mark.long@wsj.com. Follow the WSJ Logistics Report team on LinkedIn: Mark R. Long, Liz Young and Paul Berger.