The Eastern Iowa Airport in Cedar Rapids is closed today due to a weather-related accident.A United Parcel Service cargo plane was trying to take off when it slipped off the main runway and got stuck in the mud. The 727 is still stuck and is blocking the airport’s longest runway. All flights into and out of the airport are cancelled. Airport officials are trying to bus the passengers to the Des Moines airport. They say the airport will likely be closed until five this evening. Anyone with scheduled flights out of Cedar Rapids is asked to call ahead first to see if the flight is still on.