More than 280 people were killed in Wednesday’s tornado outbreak, bringing the year’s total to over 330 and making it the deadliest year since 1974, when 366 people were killed.
via www.nytimes.com"Create your own interactive map - Get started now - ChartsBin.com"
The death toll was high in several Southern states after devastating storms ripped through the region, spawning deadly tornadoes. This Interactive map shows the locations of reported tornadoes each hour (Central time) across the eastern United States over the past six days.
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Tornados form when two large air masses of varying temperature and humidity collide, with warm air in the lower layers and cold air in the upper layers.
via en.rian.ru
Natural disasters can often be the biggest threat to a country's infrastructure as recent earthquakes around the world have shown. However over the weekend, several southern states in the US where struck by violent storms and tornadoes that have devastated the region and killed up to 12 people.