Katla volcano near the volcano that blew several years ago is acting up with many earthquakes. Katla is rated at least 10 times more powerful than the nearby one.
Now the US and Canada probably would not suffer from fallout unless a very small chance of adverse winds happens. But the effects on Europe and Russia may be great. Any way it is something to watch.
A review of what happened after Mt St Helens would be enlightening.
Just for general operation, I think I’d be ordering a lot of filter elements…
Might want to run a ballast regulator/broom down the tracks to help keep the fines from filtering into the ballast. Might need to individually clean switches.
During the big dust storms on the plains, railroads were known to run snowplows to clear the dirt from the rails. Might depend on how much ash fell in a given location.