We haven’t been able to train a litter of pups through a thunderstorm in a very long time. The drought has kept those scary sounds away for a very long time. The first big bang had them scattering for for a “safe place” but after an hour they finally calmed down. We coddled them for a bit but they soon realized it was all going to be ok all on their own. Sleeping through the bangs and crashes just fine.