[Myrddin]

My wife was lamenting that we missed visiting Yellowstone last Sunday. The roads closed to vehicle traffic on Monday. They will stay closed until enough snow builds up to support snow vehicles (snow mobiles, "carriages" and skiers).

The ash plume from a large explosion at Yellowstone would screw up agriculture half way across the United States...the world's bread basket. My area of southeast Idaho would likely get nailed by a pyroclastic cloud. It's unlikely we could out run it even with quick access to I-15 or I-86.

[jrp]

You should have stayed in San Diego. ;-)

[JSteff]

“The ash plume from a large explosion at Yellowstone would screw up agriculture half way across the United States...the world’s bread basket.”

Only temporarily.. like a 1000 years or so. Remember the Yellowstone caldera helped create our bread basket. After the ash has landed and nature and weather work on it it is terrific farming soil.

But only like a 200 or more generations after the event.