The balanced turn ball being other than central would indicate you were flying in a skidding mode, possibly because someone has been monkeying with your nose trim tab, if a Cessna has one that is. It happens to me each time a professional test pilot checks out the single engine climb on my twin. They wack over the nose trim then forget to reset it.
A follow on problem is you are then tilting wings to compensate which would account for the AI showing a 'turn', and possibly would make the DI difficult to interpret.
Alternatively the airframe has suffered during the storm, and is now flying in a skidding mode. Hopeully that's not the case.