Storm / Thunder / Lightning dream meaning is explained below using 1 different source. Each interpretation is shown with its source.
Interpretation 1 — Theresa Cheung
If the latter is the case, the thunder may be the voice of your own conscience or an authority figure such as a parent or teacher or boss at work. Try to work out what the thunder was saying; it is a strong image and the advice may be equally impressive.
Finally, were you personally involved during the storm or did you fear for the safety of someone else? If you were worried about someone else, it may be that you fear the consequences of your actions on other people. And if your house or any other building was under threat from the storm, you should consider the dream from the point of view of that which was under threat.