Yeah this lines up with what I've observed over years of documenting cases in western Oregon and Washington. The correlation is hard to ignore honestly.
My working theory - and I know this is contested - is that the electromagnetic fluctuations during storm systems lower whatever threshold separates "normal" physical space from wherever these disturbances originate. Barometric pressure drops, ionisation spikes, geomagnetic disruption, all happening simultaneously. If poltergeist phenomena require some kind of energy draw or interference pattern to manifest, storms basically hand them a free amplifier.
The house I investigated up near Olympia last winter was relatively quiet for months, then a big Pacific front rolled in and the family had their worst night on record. Objects moved, temperature anomalies all over the place, the usual escalation pattern but compressed into about four hours.
Curious whether anyone's actually tried logging activity against weather data systematically. I've been meaning to cross-reference my case notes with historical pressure readings but haven't got round to it yet. Would love to compare notes if anyone else has been tracking this properly.