Not a subliminal message. It's part of the "hype" package they're using, they show fragments of the word popping up. They do something similar for the local ABC affiliate's LIVE MEGA DOPPLER 7000
HD - it's nothing to get hyped up over, though. All it is, they show the weatherman standing in front of this image, pointing out the inclement weather:
Radar Images
Such a clear day, I wish I went to the Fur-B-Que at the Irvine Regional Park, but could not get a ride, as I'm in between cars now. Ah, well. Next year.