Warrnambool East Primary School's new $3 million multi-use stadium was only weeks away from being ready for its initiation when mother nature struck with a vengeance on Saturday night.

The roof of a nearby 50-year-old sports oval shelter shed was ripped off by gale force winds and hurled against the stadium, smashing windows and damaging the panels and roofing.

Assistant principal Tony Woolley said it was fortunate the storm hit when school was closed.

"If the new stadium wasn't there the old roof could have hit the school or blown into nearby houses," he said.

"It must have been a fair wind because it blew the old shelter shed roof five to six metres high.

"The new stadium had been finished only two to three weeks ago and we hadn't moved in."

Warrnambool City Council workers were busy yesterday clearing storm damage, especially from the botanic gardens where several large trees were uprooted.

It is expected to take up to a fortnight to clear all the damage on council properties.

State Emergency Service crews continued to respond to calls from householders with storm damage, particularly roof fittings.

Muncipal councils and VicRoads were also busy clearing debris from roads.