should this be just a warning?

[aviadlevis]

https://github.com/CloudTomography/pyshdom/blob/f6b00e57b95c338456947ec582db4ebc25047ea3/pyshdom/solver.py#L1587

If this should be a warning, maybe we should add an argument to check_range: raise='exception' with the options 'exception'/'warning'?