A line of early-spring thunderstorms rolling through the Midwest, much-needed snowfall in the Sierra Nevada mountains in California and expectations for massive snowfall in parts of the western U.S. are major highlights of the weather moving toward the weekend. A system will sweep east from California into the high plains, delivering as much as 90 inches of snow in parts of Colorado over the weekend. That system will move through the Corn Belt early next week, potentially spawning some severe storms that could deliver either snow or rain to the region. Mid-South flooding potential, red-flag wind warnings in the Southwest and the eastern seaboard and severe storm potential in the southern plains look to be the biggest ag weather stories in the U.S. moving through Friday and into Saturday, according to a new forecast Thursday morning. See more from the latest outlook.