I touch in here on relation between shooting fireworks and wheather condition. Most of the reasons are rain and strong wind. If the weather forecast says it will be going bad, also stop or put off. Difficult for both promoter and audience, is unsettled weather. Worst for both, weather turn to bad just before starting display.
Thunderstorm is a good example.
Ordinary fireworks display in the cool of a summer evening in Japan, If it go with the strong wind, start launching in spite of the light rain just before the start. A bottom of a rain cloud is low, it about 250 meters high from the ground. If launch over 6 inches shell, all of it will be burst in the cloud and be bright it like a thunder,never see burst. Like this night,off course never shoot a fireworks. Each stars are will be drifting.