Complex sentence: The game was set to be played at Wrigley Field, the Bears' home stadium, but due to severe blizzards followed by extremely cold temperatures and wind chill, the game was moved indoors to Chicago Stadium.
Split into simpler sentences: The game was set to be played at Wrigley Field, the Bears' home stadium. Because of severe blizzards followed by extremely cold temperatures and wind chill, the game was moved indoors to Chicago Stadium.