MASON CITY, Iowa – The Mason City Municipal Airport closed its runways at 10:48 a.m. with deteriorating conditions due to snow and blizzard. David Sims, airport manager, said United Express flights Chicago and Fort Dodge were cancelled. Sims advised people to stay off the roads, including the six west from the city to the airport. The airport has two runways, 6,500 and 5,50 feet, for both airline and general aviation service.
