Yes, I was amazed enough to post about it. Heard a country song and thought that perhaps WISN was running C to C AM a little early (as they often play half a song during the segue). Normally, WISN is weak here and fights with others; but once in a while it holds steady but is weak. However, KWKH was - by far - the strongest signal I've picked up on 1130 at night in this area.
I took a look at a map of it's nighttime pattern and it's not consistent with what I was hearing last night. It blasted in with almost no fading over a 20 minute period. So yes, something must be out of whack with their pattern. Maybe they're leaving the daytime pattern on?