Parts of California and Arizona are under extreme heat warnings again Saturday while sweltering summerlike weather stretched as far north as Nebraska — just a day into spring. Temperatures at or above 100 degrees Fahrenheit (37.7 C) were forecast in the Southwest, closing a stunning week of record-breaking heat. Win Marsh says the heat was a reason to return home early to Utah after she and her husband hiked 170 miles (273 kilometers) in Arizona. Marsh says, "We’re not out there for a search-and-rescue event.”
