Neuware - The Edmonton Tornado, an event also known as Black Friday to Edmontonians, was a powerful and devastating tornado that ripped through the eastern part of Edmonton, Alberta, Canada and parts of neighbouring Strathcona County on the afternoon of Friday, July 31, 1987. The tornado was the second most deadly in Alberta history, behind Edmonton’s July 31, 1987, Black Friday tornado that killed 27. Monday marks a sombre day in Edmonton’s history. It … 1991 – Hotel Macdonald reopened after significant restoration and a change in ownership. The most damaging tornado season occurred April 25-27, 2011. It’s been 30 years since Black Friday. 1987 – Edmonton tornado. People in Alberta and the Prairies know their provinces’ tornado risk, but even so, the tornado that tore a path through eastern Edmonton was beyond the pale. Article content. The tornado injured 300 people and destroyed hundreds of homes, causing an estimated $330 million in damage. The tornado … Twenty-five years ago this week, an F4 tornado ripped through Edmonton, killing 27 people. The tornado remained on the ground for an hour, cutting a swath of destruction 40 kilometres long and up to a … The outbreak caused $11 billion in damage. In that week, 362 twisters hit the Southeast, breaking the 1974 record of 267 tornadoes. The path taken by the F4 Edmonton tornado in 1987. A storm system swept through the Edmonton area and parts of central Alberta on Friday afternoon, bringing with it strong wind gusts, hail and heavy rain. By Daniel Bates Updated: 07:59 EDT, 2 May 2011 A tornado's damage level depends on whether it hits rural or urban areas. The F numbers are for the Fujita values, the O is for Imperial Oil Strathcona and Petro-Canada refineries, P is the Edmonton Power Clover power station and C is for the Celanese Canada chemical plant. The only tornado that was worse was one that hit Regina on June 30, 1912. At least two of the storms were EF-5 twisters, producing wind gusts of more than 200 miles per hour. Every age, race and colour: First pictures of tornado victims emerge as fears grow it will become deadliest in U.S. history.