Weren't they supposed to get back Mon eve? I had a thought. What would it hurt to leave a message on his machine noting that you were worried about the girls and him (include him) b/c of the weather, but glad they were with him, as you know he'd ensure their safety.
This conveys appropriate thoughts/concern from you, without removing the appropriate boundaries you set up. After all, a major storm calls for some flexibility.
I'd say you may need a nice glass of wine tonight to calm the nerves, as you can't play a central role tonight anyway.
