Elie receives F5 intensity rating

Elie, the tornado that ripped through parts of Manitoba on June 22, has been given a rating of F5 intensity, the highest on the Fujita tornado damage scale, the first officially documented in Canada according to Environment Canada meteorologists. Damage indicators are used to measure the strength of tornadoes, with an F5 tornado accounting for roughly one-tenth of 1% of all tornadoes in North America, a report noted.The storm had originally indicated evidence of F4 damage, but damage at two homes indicated a potential for F5 intensity. Further evaluation including video images Environment Canada meteorologists at the Prairie and Arctic Storm Prediction Centre in Winnipeg confirmed evidence of F5 level damage, the report stated. An almost intact house can be seen being thrown several hundred metres through the air before disintegrating and falling to the ground, the report states could be seen in a video. Seconds later a heavy van is seen being whirled through the air; it was later found in an open field south of the main damage.Elie travelled just over five kilometers and was on the ground for 35 minutes, with wind speeds estimated to have reached between 420 and 510km/hr at its most intense.Canada ranks second in the world for tornado occurrences, experiencing an average of 80-100 tornadoes annually, compared to an average of 1000-1200 in the United States each year, an Environment Canada release reports. The incidence of tornadoes in Canada is likely higher than that, but because Canada has large, unmonitored and sparsely populated areas, many more tornadoes may go unreported.