The larger North Texas school districts say classes will be held Wednesday, despite Dallas-Fort Worth being under an extreme cold warning. With the arrival of an Arctic blast, the region could see the coldest air of the season this morning. It expects wind chills in the area to dip into single digits in the metroplex. Other big local school districts, including Arlington, Fort Worth, Frisco and Richardson, announced that they will also remain open Wednesday. Though some also said students can arrive early to ensure safety. Dallas ISD and Richardson ISD have cancelled all athletics outdoor activities and events through Thursday due to the inclement weather. In other news, Neiman Marcus is closing its downtown store after more than 100 years in the core of the city. The storied site on Main Street will shutter effective March 31; Interim Dallas police Chief Michael Igo on Tuesday fired a Dallas police officer who’d been arrested on an aggravated sexual assault of a child charge; And Mariano Martinez remembers the exact moment he had an idea that would revolutionize beverages not only in Dallas but around the world. Martinez, who opened his restaurant, Mariano’s Mexican Cuisine, now Mariano’s Hacienda, in 1971, told The Dallas Morning News that a customer had complained to him that they didn’t like his margaritas, saying the first was fine, the second tasted different, and the third wasn’t even cold. Find out how Martinez took that comment and changed the bar and restaurant scene for the better in today’s edition of the Dallas Morning News.

Learn more about your ad choices. Visit podcastchoices.com/adchoices