Chief Meteorologist Eric Elwell explains about what we can expect to see during the eclipse.
Whether or not you’re inside the path of totality will determine what you see in the sky. If you’re outside the path, you’ll likely see a partial (not total) eclipse.
To determine the most accurate eclipse path, according to Wright, you have to figure out where the moon’s shadow will fall on the Earth’s surface, which requires taking into account the elevation differences on both the moon and Earth’s surfaces, he told Space.com.
Using elevation data from NASA’s Shuttle Radar Topography Mission, the locations of the Earth, moon and sun at each line of latitude or longitude and how long it takes sunlight to travel to the moon and down to Earth, Wright was able to compute where exactly the eclipse will cross and for how long.