Sunshine Coast residents were pelted with hail the size of tennis balls on Saturday as dangerous thunderstorms hit south-east Queensland.
A line of hail storms battered region during the afternoon causing widespread damage in Brisbane, the Gold and Sunshine coasts.
The State Emergency Service (SES) responded to hundreds of calls for help on the Sunshine Coast with damage to homes, cars and buildings.
One person was taken to hospital with serious head injuries after he was struck by a large piece of hail.
SES workers were out in force repairing damage to roofs and broken windows.
Authorities say the worst hit areas were Maroochydore and Mooloolaba.
Meanwhile, dozens of SES volunteers were called to Coffs Harbour on the New South Wales mid north coast after it bore the brunt of a wild weather system.
There were reports of major damage to homes and businesses, particularly around Sawtell and Toormina, after hail, heavy rain, and damaging winds lashed the region.
Almost 350 calls for help were made to the State Emergency Service.
SES spokesman Phil Roffey says crews would work well into the night to fix the damage.
"The major job that we had was at an aged-care centre at Sawtell Road," he said.
"It was a big job which took quite a lot of effort to make that safe, but as I say mainly hail stone damage to a lot of roofs and skylights around Sawtell and Toormina."
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© ABC 2013
18:08 EST Authorities have sent emergency alerts to tens of thousands of people in NSW's Hunter region as forecasters warn wild weather will worsen after earlier claiming three lives.