Iowa weather: Tornado watch issued for western half of the state

6:41   Iowa weather: Winter storm with heavy snow continues across the state 0:30   Intense Lightning Flashes Across Sky In Ames, IA 4:09   Iowa weather: Blizzard Warning Sunday through Monday morning 3:03   Iowa weather: Snow chances return today leading to slick travel this evening and overnight 3:16   Iowa weather update: Frigid cold moves in behind the winter storm, subzero chills early Friday 0:36   Iowa Snow: Whiteout Conditions Seen In Ames 3:39   Iowa weather forecast: What to know about winter storm chances after Thanksgiving 0:11   Severe storm rolls in through Ames 4:15   Iowa weather: Dangerous Winter conditions linger as temps drop into the weekend 0:23   IA-WINTER WEATHER-BLIZZARD IN AMES 3:55   Iowa weather: Winter storm warnings in place as heavy snow moves in tonight 0:29   Cy-Hawk football forecast: Cool and sunny Saturday in Ames 2:48   Iowa weather: I-80 closure expands as blizzard conditions worsen, I-35 remains closed north of Ames