I'm uploading both a new embedding, and the one from several weeks ago that it was supposed to replace. Unfortunately, it is not perfect, and there are things that each version is better at, so I'm just putting them both up with some X/Y plots to show them side by side, as well as combined with prompt editing. [emb-nuke|emb-nuke2] to alternate between them. emb-nuke seems to get the concept better, but it also tends to overpower the image, and the effect does not always look realistic. emb-nuke2 creates much better roiling smoke, with better cloud detail. It doesn't always make them shaped like explosions, though. I use prompt editing to switch from a mushroom cloud to a nuclear blast early on, to prevent mushrooms from popping up all over the image, because SD is special. you can see in the third column of later grids that, when combined, it has the good concept of v1, but also the style crushing effect, whereas the middle column (v2) let more of the prompt and model show through. However, the effect was rendered better in the combination than v1 could do alone.

please note that if you're copying the prompt from the grid images, the positive prompt is using emb-nuke (v1), because it was being searched-and-replaced in an X/Y plot.