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Hurricane Agnes tornado outbreak
The 1972 Hurricane Agnes tornado outbreak, the third-deadliest tropical cyclone-related outbreak in the United States since 1900, was the deadliest tornado outbreak related to a tropical cyclone in Florida. The outbreak, produced by Hurricane Agnes, lasted about 15 hours on June 18–19, 1972. In all, the outbreak resulted in 30 tornadoes in Florida and Georgia, including 6 F0 events, 12 F1 events, 10 F2 events, and two F3 events on the Fujita scale. Originally, only fifteen tornadoes were confirmed. Two of the tornadoes killed seven people and were not officially classified as tornadoes in the National Weather Service records. In Florida alone, the outbreak inflicted at least 140 injuries and destroyed fifteen homes, while 119 homes received damage. In that state, 217 trailers were destroyed and 196 trailers incurred damage. Additionally, six Florida businesses were destroyed, while six others were damaged.
==Meteorological synopsis==
The interaction of baroclinic features with Agnes resulted in a tropical cyclone with "hybrid" characteristics, which increased the threat of strong tornadoes with longer path lengths. The outbreak became the most significant tornado outbreak associated with a tropical cyclone prior to landfall.〔 The presence of strong wind shear surrounding the tropical cyclone facilitated the development of strong tornadoes, including the greatest number of tornadoes of at least F2 intensity within one 24-hour period in Florida.〔〔 Studies have suggested strong wind shear in the lower levels of the atmosphere is a common feature during tornado outbreaks involving the outer rain bands of tropical cyclones near Florida. Additionally, in Florida cases, the favored region for tornado outbreaks is the northeastern quadrant of north moving tropical cyclones. Agnes represented one of these cases.〔
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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