Interesting timing on this thread - we've had three significant storm fronts pass through the East Midlands in the past six weeks and my EMF readings have been all over the place during each one.
For context, I run a fairly rigorous monitoring setup: a pair of TriField TF2 meters alongside a custom-built data logger that timestamps anomalies automatically. What I'm consistently seeing is a spike in unexplained fluctuations roughly 4–6 hours before peak storm activity, which rules out the obvious ". It's just atmospheric interference". Dismissal most sceptics default to.
The correlation isn't perfect, but it's persistent enough to be statistically interesting. There's a reasonable hypothesis here around infrasound - large storm systems generate infrasound frequencies that can induce feelings of unease, cause objects to vibrate imperceptibly, and even trigger temporal lobe sensitivity in certain individuals. So some of what gets reported as poltergeist activity during storms could be genuine environmental phenomena that aren't supernatural per se, but aren't nothing either.
That said - and I realise this is the uncomfortable bit - some of the activity at my monitored location genuinely doesn't fit the infrasound explanation. Specific, targeted object displacement isn't something infrasound accounts for particularly well.
Anyone else keeping proper logs rather than just anecdotal notes? Would be worth cross-referencing data if people are seeing the same pre-storm window of activity. Drop your general region and whether you're seeing the uptick before or during the worst weather.