Roads across the United States are already clogged as millions move inland ahead of tomorrow's Total Solar Eclipse.

The blackout will be viewable from 14 US states coast-to-coast across the middle of the country.

The town of Madras in Oregon normally has a population of six thousand - it's currently well over one-hundred thousand, because of the ideal weather conditions for viewing there.

Dubliner Deirdre Duignan has flown there with her husband Tom: