Reached by WW this afternoon, KGW interim news director Rick Jacobs did not dispute the authenticity of the slickly produced graphic. He did, however, contradict the Twitter account on a key point:
"This never made air," Jacobs says. "It was never online or on our broadcast."
As local news bloopers, it's not good as this classic about a chicken, but it's all we've got today.
Update 4:30 p.m.: Jacobs called WW back with a correction after further conversations with KGW staff.
He says the graphic did appear on air for less than a second.
"Somebody punched the wrong button, basically," Jacobs says.
Newsrooms everywhere remain a haven for ill-advised jokes, but even so, Jacobs says the graphic was not in line with the station's journalistic standards.
"It's unacceptable. It was just a lapse of judgment. I'm going to take appropriate measures to make sure it never happens again," he says.