It’s not just weather patterns that have to be looked at.
It’s the Jet stream as well.
Just what “plume”? Mainly this is a projection of what “might” happen “if” there were a plume. Anyone can make projections. My projection is that there is no plume and that eco-nut Luddites have ta]ken over. Emotionality and insanity prominent now in the media and in many “OMG” comments. Stay in the safe room covered in lead shielding until the all-clear.