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1998 Kissimmee tornado outbreak
The 1998 Kissimmee tornado outbreak of February 22–23, 1998, was a devastating tornado outbreak, the deadliest tornado event in Florida history, that is sometimes known as The Night of the Tornadoes. Affecting the I-4 corridor of Central Florida, including the Greater Orlando area, the tornadoes—among the strongest ever recorded in Florida—produced F3 (in some cases, near-F4) damage, killed 42 people, and caused 260 injuries. The previous record for the highest tornado death toll in Florida history was 17 on March 31, 1962. In all, 12 tornadoes touched down, one of which was long lived and tracked for nearly . The first major, F3 tornado of the outbreak came at around 11:40 pm in Winter Garden, near Windermere in Orange County, killing three people. The deadliest and most destructive tornado of the night struck the Kissimmee–St. Cloud area, where 25 people were killed, and produced near-F4 damage. Only two other tornadoes, both rated F4, in 1958 and 1966 produced more intense damage in Florida. Another F3 hit in Seminole County, near Sanford, and in Volusia County, killing 13. The last tornado of the night was a weak F1 that hit the town of Cape Canaveral in Brevard County.
==Meteorological synopsis==
During the night of February 22 and the very early parts of February 23, severe weather formed over Central Florida. Radar data indicated that several long-lived supercell thunderstorms developed over the eastern Gulf of Mexico late on February 22, affected the Tampa Bay Area, and eventually produced seven tornadoes between about 11 pm on Feb. 22nd and 2:30 am on Feb. 23rd. As these storms swept through Central Florida, the tornadoes killed 42 people and seriously injured more than 260 others. This was the deadliest tornado outbreak in Florida’s history after the storm that killed 17 people on March 31, 1962, in Santa Rosa County. The tornadoes were strong due to an abnormally strong jet stream with warm, humid air out ahead of the cold front. This is common in the El Niño phase of the El Niño-Southern Oscillation (ENSO) during the Florida dry season (November 1 - April 30). During El Niño the jet stream is typically stronger and further south near or over Florida in the winter and spring. This greatly increases the odds that conditions will be favorable for strong tornado development.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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