She fell to the ground and turned to see the kangaroo standing over her.
"I put my head back down because I thought 'Oh my goodness, this is now going to claw me to death'.
"It all sort of happened so fast."
Ms Noonan said she stayed for a minute on the ground and then slowly got up and began walking away, but the roo followed.
She threw a handful of rocks its way to stun it, giving her enough time to escape into the nearest house, but the determined roo was on her tail, following her up the driveway into the front yard.
The residents came out and scared it away, while Ms Noonan sat with them to calm down.
But as she went to leave, there was the roo, waiting again.
"It was something out of a horror movie. It just kept coming and coming. I thought, 'Oh my God, this kangaroo is going to kill me."
Ms Noonan said she spoke to a local ranger to explain what happened.
"He seems to think that it could possibly have been my perfume," she said.
"It was Sarah Jessica Parker perfume.
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"It's so funny because who puts perfume on to go on a run?
"I left early in the morning and I was fumbling around for deodorant and that's all I could find.
"I was not trying to attract any kangaroos, I can assure you that."