IMO, unexplained phenomena can only be explained by deduction, i.e working backward.. What were the conditions at that time, how many people witnessed the event and described it. What was the appearance or type communication that was perceived by the observers.
I always refer back to Thor, the god of thunder. almost every culture had gods for what we now know to be natural phenomena.
But OTOH, we now also know that there seems to be a form of connection and communication in the Wholeness of the universe. So while we can rule out 99.99 % of supernatural phenomena, it may not be impossible for certain individuals to have a sensitivity to say electro magnetic wave lengths, sonic wavelngths, or certain causal tensions such as atmospgeric pressures etc.
But individual experiences are seldom if ever repeatable and should just remain "unexplained events" rather than "supernatural interferences".