Infact the BOM has singled it out in there warning, don't think I've seen that before outside Sydney and SE QLD:
"At 3:26pm a particularly severe thunderstorm was moving towards Grafton and is expected to move over the town in the next 30 minutes."
Yeah, will be interesting to grab the observations from that area when they're updated. I've only see them do it once before (point out a storm outside of a Capital), and that was the one that hit Gayndah....