ABC News Chief Meteorologist Ginger Zee Expecting 1st Child

Zee made the announcement today on “GMA.”

"This is the most nervous I've been in a while," Zee said after making the announcement.

"The forecast for delivery is in December," she said.

Zee grew up in Rockford, Michigan. She married Aaron, a correspondent for NBC, in her home state last June.

Zee said on "GMA" that her new adventure of motherhood has already proven "so emotional."

"All the other adventures promise you will return home," Zee said. "This is like, when you get home, the adventure is there and that's the big difference and why it is so emotional for me."

"I'll do anything but this scares me," she said.

After the announcement on "GMA," Zee tweeted a photo of her sonogram alongside the caption, “We can’t wait! Baby Zee/Aaron is forecast to join us in December. @ben_aaron.”