Eclipse shadow begins working its way across Central and North America

At around 2 p.m. EST, the total eclipse could be seen in Mazatlan, Mexico. In ensuing hours, viewers began seeing it elsewhere across a diagonal line from Mazatlan to Maine.

What’s the weather like today for viewing? Stormy weather from northern Texas to Oklahoma and northern Louisiana is expected to hamper viewing and travel afterward, according to a statement by the National Weather Service. The storm system could persist until Thursday.

How many people likely saw the eclipse? The Great American Eclipse website estimated that anywhere between nearly 1 million and 4 million people would travel to see the total eclipse somewhere in its path. According to the website, roughly 31 million people already reside in its path.

What sort of coverage did this receive? NASA on Monday live-streamed coverage of the eclipse on YouTube. The coverage featured expert commentary on the event, as well as interviews with on-the-ground coverage with viewers. During the live stream, NASA Administrator Bill Nelson encouraged viewers to wear glasses while watching the eclipse so as not to damage their eyes.

Dig deeper: Listen to Harrison Watters’ report on The World and Everything in It podcast about how scientists are taking the opportunity to study the sun during the eclipse.