Meteorological history | |
---|---|
Formed | 12:41 p.m. MDT August 11,1999 |
Dissipated | 12:55 p.m. MDT August 11,1999 |
Duration | 14 minutes [1] |
F2 tornado | |
on the Fujita scale | |
Highest winds | >115 mph (185 km/h) [1] |
Overall effects | |
Fatalities | 1 |
Injuries | 100+ |
Damage | US$172 million [2] |
Areas affected | Downtown Salt Lake City |
Part of the Tornadoes of 1999 |
The 1999 Salt Lake City tornado was a rare tornado that struck downtown Salt Lake City,Utah,United States,on August 11,1999. It was among the most notable tornadoes to hit west of the Great Plains in the 20th century and the second tornado to hit in Utah that resulted in a fatality (the other occurring in 1884). [3] This was the sixth significant tornado in Utah since June 1963, [4] and one of only two F2 tornadoes to have hit Salt Lake County since 1950 (the other occurring on February 9,1965,in Magna). [5] [6]
In Salt Lake Valley,the day began with calm but cloudy weather. As the day progressed,the clouds became steadily darker until nearly all light was obscured. Winds were still nearly calm,with the exception of a few microbursts. Hail preceded and followed this tornado,which was rated a strong F2 on the Fujita scale. At 12:41 p.m.,1+1⁄2 inches (3.8 cm) diameter hail was reported near the town of Herriman. Afterwards, the storm started rotating, and at around 1:00 pm, many people reported seeing the storm rotate as it moved into downtown Salt Lake City. A non-descending funnel cloud developed and traveled from western downtown toward the northeast before terminating near Memory Grove Park upon reaching the base of the Wasatch Mountains. [4] The tornado remained on the ground for about 14 minutes over the span of about 4.25 miles (6.84 km). [1] [7]
The tornado damaged or destroyed approximately 800–1,000 trees [7] [8] [9] and destroyed temporary tents set up for the Outdoor Retailers Association convention, claiming the life of one booth set-up supervisor, Allen Crandy, 38, of Las Vegas. In The Avenues, over 154 homes were severely damaged, about 120 of which had roofs blown off. Over 100 people were reported injured and a dozen critically. In total, 300 buildings were damaged or destroyed. [8]
At the Delta Center, home of the Utah Jazz of the National Basketball Association, the tornado shattered windows and tore off part of the roof. [10] Almost all of the windows from the nearby Wyndham Hotel (now the Radisson Hotel), across the street from the temporary tents, were broken out, raining down shards of glass on people attempting to escape from the collapsed tents. A crane toppled at the LDS Conference Center that was under construction. [11] 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 reportedly torn out, as well as hundreds of old trees on the Capitol grounds.[ citation needed ]
This was the first major tornado to occur in a large urban area's downtown district and strike buildings of nearly 500 ft (150 m) tall, according to Bill Alder of the National Weather Service. It happened in an area of the U.S. where tornadoes of this strength are relatively rare. The tornado caused approximately $170 million in damage. [9]
The tornado outbreak of April 6–9, 1998 was a large tornado outbreak that started on April 6 across the Great Plains and ended on April 9 across the Carolinas and Georgia. A total of 62 tornadoes touched down from the Middle Atlantic States to the Midwestern United States and Texas. The outbreak is infamous for producing a deadly F5 that tore through the suburbs of Birmingham, Alabama, killing 32 people. The Birmingham tornado was one of only two F5 tornadoes that year. The other hit in Lawrence County, Tennessee, on April 16, as part of the same outbreak as the Nashville F3 tornado. This tornado outbreak was responsible for 41 deaths: 7 in Georgia and 34 in Alabama.
This page documents notable tornadoes and tornado outbreaks worldwide in 2003. Strong and destructive tornadoes form most frequently in the United States, Bangladesh, and Eastern India, but they can occur almost anywhere under the right conditions. Tornadoes also develop occasionally in southern Canada during the Northern Hemisphere's summer and somewhat regularly at other times of the year across Europe, Asia, and Australia. Tornadic events are often accompanied with other forms of severe weather, including strong thunderstorms, strong winds, and hail.
This page documents the tornadoes and tornado outbreaks of 2002, primarily in the United States. Most tornadoes form in the U.S., although some events may take place internationally. The year had several large outbreaks that included the Veterans Day Weekend tornado outbreak and the Midwest to Mid-Atlantic United States tornado outbreak.
This page documents notable tornadoes and tornado outbreaks worldwide in 2001. Strong and destructive tornadoes form most frequently in the United States, Bangladesh, and Eastern India, but they can occur almost anywhere under the right conditions. Tornadoes also develop occasionally in southern Canada during the Northern Hemisphere's summer and somewhat regularly at other times of the year across Europe, Asia, and Australia. Tornadic events are often accompanied with other forms of severe weather, including strong thunderstorms, strong winds, and hail.
This page documents the tornadoes and tornado outbreaks of 1999, primarily in the United States. Most tornadoes form in the U.S., although some events may take place internationally, particularly in parts of neighboring southern Canada during the Northern Hemisphere's summer season, as well as Europe. One particular event, the Bridge Creek-Moore, Oklahoma F5 tornado, produced the highest wind speed ever recorded on Earth, which was 301 ± 20 mph (484 ± 32 km/h).
The Southern Ontario Tornado Outbreak of 2009 was a series of severe thunderstorms that spawned numerous tornadoes in Southwestern Ontario, Central Ontario and the Greater Toronto Area (GTA) on August 20, 2009, and was the largest single-day tornado outbreak in Ontario history and the largest in Canadian history. During the afternoon and evening, 19 tornadoes touched down with four of them producing F2 damage. One F2 struck the town of Durham where significant damage occurred and one person was killed; two F2s struck the city of Vaughan, just north of Toronto, damaging hundreds of homes; another F2 devastated apple orchards and resort areas near Thornbury. The number of tornadoes associated with this event surpasses that of August 2, 2006, which saw 18 documented tornadoes. In addition, it was one of the most destructive and costly tornado events ever in the province, and included one fatality, one of only a handful of deadly tornadoes in Ontario's recent memory. At one point, over 10 million people in Southern Ontario, one-third of Canada's population, were placed under tornado watches and/or warnings as the storms rolled through.
This page documents the tornadoes and tornado outbreaks of 1996, primarily in the United States. Most tornadoes form in the U.S., although some events may take place internationally. Tornado statistics for older years like this often appear significantly lower than modern years due to fewer reports or confirmed tornadoes, however by the 1990s tornado statistics were coming closer to the numbers we see today.
This page documents the tornadoes and tornado outbreaks of 1998, primarily in the United States. Most tornadoes form in the U.S., although some events may take place internationally. Tornado statistics for older years like this often appear significantly lower than modern years due to fewer reports or confirmed tornadoes, however by the 1990s tornado statistics were coming closer to the numbers we see today.
This page documents the tornadoes and tornado outbreaks of 1968, primarily in the United States. Most tornadoes form in the U.S., although some events may take place internationally. Tornado statistics for older years like this often appear significantly lower than modern years due to fewer reports or confirmed tornadoes. Two F5 tornadoes struck Iowa in the Charles City and Maynard areas, combined they claimed 18 lives and this was one of very few cases in history where two F5 or EF5 tornadoes hit the same state, on the same day.
This page documents the tornadoes and tornado outbreaks of 1967, primarily in the United States. Most tornadoes form in the U.S., although some events may take place internationally. Tornado statistics for older years like this often appear significantly lower than modern years due to fewer reports or confirmed tornadoes.
This page documents notable tornadoes and tornado outbreaks worldwide in 2019. Strong and destructive tornadoes form most frequently in the United States, Argentina, Brazil, Bangladesh, and Eastern India, but can occur almost anywhere under the right conditions. Tornadoes also develop occasionally in southern Canada during the Northern Hemisphere's summer and somewhat regularly at other times of the year across Europe, Asia, Argentina, and Australia. Tornadic events are often accompanied by other forms of severe weather, including strong thunderstorms, strong winds, and hail.
This page documents the tornadoes and tornado outbreaks of 1958, primarily in the United States. Most tornadoes form in the U.S., although some events may take place internationally. Tornado statistics for older years like this often appear significantly lower than modern years due to fewer reports or confirmed tornadoes.
This page documents the tornadoes and tornado outbreaks of 1957, primarily in the United States. Most tornadoes form in the U.S., although some events may take place internationally. Tornado statistics for older years like this often appear significantly lower than modern years due to fewer reports or confirmed tornadoes.
This page documents the tornadoes and tornado outbreaks of 1952, primarily in the United States. Most tornadoes form in the U.S., although some events may take place internationally. Tornado statistics for older years like this often appear significantly lower than modern years due to fewer reports or confirmed tornadoes.
This page documents the tornadoes and tornado outbreaks of 1951, primarily in the United States. Most tornadoes form in the U.S., although some events may take place internationally. Tornado statistics for older years like this often appear significantly lower than modern years due to fewer reports or confirmed tornadoes.
This page documents the tornadoes and tornado outbreaks of 1950, primarily in the United States. Most tornadoes form in the U.S., although some events may take place internationally.
A localized, but destructive and deadly tornado outbreak impacted Tennessee, Alabama, and Georgia on Leap Day in 1952. Thanks in part to unseasonably strong jet stream winds and a strong cold front, eight tornadoes left trails of damage and casualties. The tornado to cause the most casualties was an F1 tornado in Belfast, Tennessee, which killed three people and injured 166. A violent F4 tornado moved through Fayetteville, Tennessee, destroying most of the town and killing two and injuring 150 others. On the north side of Fort Payne, Alabama, an F3 tornado caused major damage and injured 12 people. In all, the outbreak killed five, injured 336, and caused $3.1 million (1952 USD) in damage. Four more fatalities and 14 more injuries occurred from other non-tornadic events as well.
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