Check this picture of the structure from Brisbane area a few days back.
So this storm originated just to the northwest of Grafton and travlled all the way to Coffs Harbour. I was watching it from Woolgoolga headland with Dan and Matty. Before the sunset there was a particularly pretty display of mammatus which I photograhed while Kangaroos had a play fight underneath! Quite an amazing site.
This soon begain to produce frequent anvil crawlers which we could see through a gap in the clouds.
After this we travelled back to coffs but just not could find a good vantage point to shoot anything else due to all the hills that surround Coffs and being caught in rain. As I was driving to Sawtell to try and get a better view my girlfriend rang and said we just got large hail at home, she said about the half the size of her palm.