A Tyrannosaurus Rex was sighted roaming in eastern Arizona Wednesday but it quickly disappeared.

That is, a bolt of lightning that took the shape of the dinosaur was caught flashing above Arizona’s Petrified Forest National Park and the photo was posted online Wednesday by the U.S. Department of the Interior. Interior decided it was a good opportunity to teach folks about safety.

“Have you ever seen lightning make such crazy shapes?” a message with the photo, posted on Facebook, read. “This bolt looks like a Tyrannosaurus rex getting ready to chomp a formation at Blue Mesa in Arizona’s Petrified Forest National Park. Monsoons usher in summer lightning, so explore safely and be sure to check the weather.”

The picture — captured by Hallie Larsen, a park ranger for the National Park Service, inspired —hundreds of comments from fans. One showed their creative chops and said that the dinosaur’s head also resembled an upside down heart. Another shared a photo of a lava flow their father had taken back in the 1960s. Another said that the long squiggly line looked like a snake.

The monsoons the Interior were warning about are a yearly event that brings in major downpours all over Arizona. The rains can get so intense that cars can scarcely see a few feet in front of their cars and are forced to pull over or slow down considerably. The monsoons can also bring major flooding of roadways and can be potentially deadly.

Monsoon season, as of 2008, in Arizona officially starts June 15 and lasts until September 30. Before 2008, however, the season would be variable. That is because a monsoon — a season of high temperatures, high winds and high moisture — in Arizona then was defined as starting when there were three or more consecutive days of 55 degree dew points.