I heard a single clap of thunder wake me at 05:30, this morning, then nothing more. I've just checked the rain log, and we got 1.8mm of rain between 05:30 and 10:00 this morning.
Drizzle here in NNW London (17.50 hours). We had rain over night.
Apropos the dog, I have had to deal with three dying over a 4 year period (something I will never recover from). One used to literally pee himself if he heard thunder.
Chucking it down here, Edinburgh south, there's thunder and lightning too.
It's the first time my wee dog has seen it, she stands on the back door step with a curious look on her face before turning heel and flying back in. After a few seconds she goes back for another look and repeats it.