NASA Solar Dynamics Observatory
These powerful solar storms will produce auroras that will potentially be visible in the central and northeastern U.S. during the late hours on Friday and Saturday, according to Tony Phillips at spaceweather.com. Auroras are natural nighttime light displays that are usually only visible in the northernmost parts of the world.
Here's a helpful AccuWeather map of where the aurora will appear:
For any intrepid sky-watchers who are lucky enough to be in the visibility zone, the best time to look up will be after midnight, in every time zone, on Friday and Saturday.Viewers in Washington state, most of Oregon, Idaho, Wyoming, Nebraska, Minnesota, the northern parts of Nevada, Utah, and Colorado, western Iowa, and the southeast part of South Dakota have the best chance of seeing the aurora, about 45%.
It's a coin toss, but one that could result in unforgettable beauty.