Then he saw video a neighbour posted of shingles and boards flying off the roof at his condo complex.Environment Canada said late Sunday that preliminary information indicates the tornado was a Category EF-1, meaning winds of at least 135 kmh and may have been on the ground for more than 30 minutes.Ottawa and Gatineau were hit by serious tornadoes in September and several communities east of Ottawa have also been in a state of emergency due to spring flooding.
An F1 in Chteauguay on Montreals south shore, another F1 in Durham-Sud, an F1 in Saint-Albert, which cut a path 6 km (3.7 mi) long, and an F0 in Chesterville. Due to increasing detection, particularly in the US and southern Canada, numbers of counted tornadoes have increased markedly in recent decades although number of actual tornadoes and counted significant tornadoes has not. ![]() Canada ranks as the second country in the world with the most tornadoes per year, after the US. The most common types are F0 to F2 in damage intensity level and usually result in minor structural damage to barns, wood fences, roof shingles, chimneys, uprooted or snapped tree limbs and downed power lines. Fewer than 5 of tornadoes in Canada are rated F3 or higher in intensity, where wind speeds are in excess of 225 kmh (140 mph). Prior to April 1, 2013, Canada used a slightly modified Fujita scale, and as of that date the Enhanced Fujita scale, again slightly modified, was put into use to rate tornado intensity, based on the damage to buildings and vegetation. All other provinces and territories have significantly less threat from tornadoes. The peak season in Canada is through the summer months, (June to August), when clashing air masses move north, as opposed to the spring season in the United States southern-central plains, although tornadoes in Canada have occurred in spring, fall and very rarely winter. The upswing could also be attributed to other factors, such as improved aerial and ground damage assessment after the fact in sparsely populated areas (particularly the case in remote parts of the Canadian Prairies and Northern Ontario, for example), better trained spotter capabilities and increased use of digital recording devices by citizens. Tornadoes in Canada are enough of a threat for a public warning system to be in place, overseen by the national weather agency, Environment Canada (EC). The deadliest tornado in Canadian history, the Regina Cyclone of June 30, 1912, does not even rank in the top 25 when compared to American tornado fatalities. ![]() An F2 struck near Alma, lasting about half a minute and destroying two houses, a barn and a garage. The second tornado, an F0, was confirmed in the same region near Pointe-Taillon National Park. It tore the roof from a house and knocked out power to several communities. Three were given an F0 rating, and were confirmed near the towns of Argyle, Campbellville and Ayr. The fourth was rated as an F1 and touched down in the Fenelon Falls area knocking over a silo. Two other tornadoes were reported, but not confirmed, near the towns of Arthur and Bancroft. Up to 150 mm (5.9 in) rain falls in just 3 hours at Stratford and Tavistock. It also caused some vehicles to go off the road as it crossed west to east both lanes of Autoroute 15 during rush hour. It destroyed several residential trailers, turned over a tractor-trailer unit, and caused a number of injuries; the storm also dropped baseball-sized hail that is typical of tornado-producing thunderstorms in the Prairies. Trees up to a metre in diameter were struck down by the twister. One man was killed when a tree fell on the porch he was standing on. The storm was also accompanied by hail greater than 2 cm (0.79 in) in diameter.
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