>>1385279Everyone in the immediate and surrounding areas of Yellowstone are going to die near instantly.
A large amount of ash would spread across the continent, having much more severe impacts the closer they are to the caldera. The weight of the ash would cause many weaker structures to cave in. More importantly, it'd cause massive disruptions to the agricultural industry. Where the ash gets deposited, in which direction, depends entirely on the weather patterns at the time, but you should be somewhat okay so long as you're not in a neighboring state of Wyoming. At least, you won't die, and supposing you live in a sound structure, your home should be fine too. Your main problems are ash inhalation and potential damage to critical infrastructure. Better get those ash plows ready!
The economy of the US and, depending which way the wind blows, Canada or Mexico would take a massive hit. A large refugee population would be heading east of the Mississippi. Feeding and housing them would become a massive challenge; not to mention, none of them would be working. Sorry Canada, but it'd be in everyone's best interest if the ash blows northward as the global economic ramifications and agricultural ramifications would be far less severe.
For everyone else, I believe I read also that the eruption of Yellowstone would cause worldwide global cooling, so much so that growing seasons would alter greatly, moreover, shortening. With a large part of the American and potentially Canadian and Mexican agricultural systems taking severe hits, you're going to see massive starvation worldwide. In the US and other First World countries, people in large part should be fine in this regard as the effects of the eruption would more so result in skyrocketing food prices and rationing. We'd be able to pay for food whereas poorer countries would be royally fucked. I'm not sure how long these global cooling effects would last, but rest assured, it's gonna be a shitshow worldwide.