SO wrong, my friend. St. Elmo's Fire is a static electricity phenomenon. I've experienced it more than once as a pilot. It's a beautiful thing to behold. A metal aircraft flying through highly charged air (think near a thunderstorm, for example) at high speed and high altitiude.....major static buildup on the skin of the aircraft....next thing you know, you see 'fingers' of 'lightning' dancing all about your windscreen, wing leading edges, etc. Very impressive, but NOT what you're talking about.
You see it also on prop driven aircraft.
Usually 8,000 or above.
Thunder or cold dry snow storms.
Props make rings and of course the little greenish blue dancing across the windshield.
Well, I was obviously misinformed. It’s called spontaneous human combustion (SHC) but not St. Elmo’s Fire. Thanks for correcting the error.