As with most skywatching events, it's best to be mindful of light pollution and other aspects of your surroundings that could hinder the view, such as tall mountains, buildings and trees, Petro said. For viewers in the western half of the Americas, in particular, where the eclipse occurs as the moon is low on the horizon, tall objects could block your view of the moon. Clouds that get in the way may also make it difficult to notice any changes to the moon during the eclipse.
To observe Friday's eclipse from North or South America during moonrise, look toward the eastern horizon to find the moon. If you're having trouble locating the moon or don't know what time the moon rises at your location, you could try using a mobile stargazing app. Or you can simply type "moonrise" and your location into a Google search.
Petro recommends going outside for a "practice run" about 24 hours in advance to locate the moon and determine the best spot for your lunar observations. "Use that opportunity to start looking at and paying attention to the moon," he said.