Salt Lake City Tornado
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| style="text-align: center;" colspan="2" class The Salt Lake City Tornado was a very rare tornado that occurred in Salt Lake City, Utah on August 11, 1999, during an unusually strong summer monsoon season. It was among the most notable tornadoes to hit west of the Great Plains in the 20th century and only the second tornado to hit in Utah that resulted in a fatality (the other occurring in 1851). Hail preceded and followed this tornado, rated a strong F2 on the Fujita scale. Wind speeds of up to 157 mph (253 km/h) were recorded. At 12:41 p.m., 1 1/2 inch (4 cm) diameter hail was reported near the town of Herriman. Afterwards, the storm started rotating, and at around 1:00 p.m., many people reported seeing the storm rotate as it moved into downtown Salt Lake City. A non-descending narrow tornado developed and traveled from western downtown toward the northeast before terminating near Memory Grove Park upon reaching the base of the Wasatch Mountains. The tornado uprooted trees and destroyed temporary buildings set up for a retailers' convention, claiming one conference attendee's life. In The Avenues, over 120 homes were severely damaged and had roofs blown off and 34 homes were completely destroyed. Over 100 people were reported injured and a dozen critically. The Delta Center, home of the Utah Jazz of the National Basketball Association, suffered minor damage. All of the windows from the nearby Wyndham Hotel were broken out. Construction cranes for the LDS Conference Center were toppled by the storm, and damage to historic buildings in the lower Capitol Hill area of Salt Lake was reported. Nearly all of the trees in Memory Grove, a World War I memorial park at the mouth of City Creek Canyon near downtown, were reported torn out. This was the first major tornado to occur in a major urban area's downtown district and strike buildings of nearly 500 ft. (150 m) tall according to Bill Alder of the National Weather Service. The governor of Utah in 1999, Michael O. Leavitt, called the sound of the tornado moving between the tall glass buildings an implosion of glass as their windows shattered. The tornado caused over $150 million in damages.
Tornadoes in the WestTornadoes are generally weak west of eastern Colorado, but Western states have had their share of tornadoes. In California, they usually hit around the Sacramento Valley and areas near Los Angeles. Occasional intense tornadoes also strike Montana and eastern Wyoming.A mile-wide, F4 tornado once hit in the Teton Valley of Wyoming. This tornado hit near the Continental Divide at an elevation of around 10,000 feet (3000 m).
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