The last time Earth was hit by a G5 storm was October 2003.
Atlantic storms are closely watched because they can disrupt global energy, agriculture, and insurance markets.
A major hurricane is expected to strike at the heart of the U.S. refining and natural gas industry.
It's expected to be a Category 4 storm that would be the first major hurricane to hit the area in 15 years.
The 300 million-year-old rock under the highway could knock out power if a solar storm hits.
A westward shift and the storm's weakening checked what was expected to be "astronomical" damage.
It's threatening to become the most expensive storm in U.S. history.