Wait, so I not only have to worry about whirlwinds around mountain chains on the other side of the globe, I also have to worry about salt and pollen in the air too? Sheesh no wonder we struggle to get winter storms around hereAll of the above and then some like precipitation rates, etc. Even the most subtle things like the types of cloud condensation nuclei we have aloft can impact it because water that condenses around black carbon aerosols vs say sea salt or pollen freezes at slightly different temperatures!
