Osage County, MO
| Date | Time (CST) | F-Scale | Length (Miles) | Maximum Width (Yards) | Killed | Injured | Property Damage | Source* |
| 5/18/1883 | 600 pm | F3 | 30 | 200 | 0 | 0 | n/a | G |
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Formed over the extreme NE part of the county and moved into Warren County. This tornado killed a total of 1 person and injured 8. Maximum intensity was likely in Warren County. |
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| 5/27/1896 | 615 pm | F4 | 5 | 150 | 2 | 3 | n/a | G |
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Moved ENE, passing 4 1/2 miles SE of Chamois. Two farms were destroyed and 2 children killed. All 7 buildings on one farm were completely swept away. |
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| 5/1/1948 | 935 pm | F2 | 1 | 400 | 0 | 2 | $500,000 | G |
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Moved E, damaging, twisting, or unroofing every house in St. Thomas. |
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| 9/28/1959 | 345 pm | F1 | 6 | 100 | 0 | 1 | $50,000 | SPC |
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Path began near Freeburg. Crossed Highway 89 near Gasconade River. Several farm buildings badly damaged. Corn flattened by wind. |
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| 4/17/1969 | 700 pm | F1 | 1 | 200 | 0 | 0 | >$5,000 | SD, SPC |
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A tornado touched down about 6 miles SW of Chamois and caused damage to 4 farms in its path. It moved from SSW to NNE. |
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| 6/21/1981 | 810 pm | F0 | 1 | 50 | 0 | 0 | n/a | SPC |
| 5/1/1983 | 230 pm | F3 | 9 | 400 | 0 | 3 | $1,400,000 | SPC |
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A tornado touched down near Route U about 4 miles southwest of Linn and lifted about 3 miles N of U.S. 50. Eleven farms were damaged or destroyed. One church and 5 commercial buildings as well as 3 vehicles were damaged or destroyed in and around Linn. The Mosby Times Mirror Publication Company, a steel building had considerable damage to the building and contents. |
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| 7/2/1992 | 640 pm | F1 | 0.5 | 50 | 0 | 0 | >$50,000 | SPC |
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Tornado touched down briefly near Frankenstein and destroyed a tri-level home. |
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| 4/15/1994 | 245 am | F1 | 25 | 70 | 0 | 0 | n/a | SPC |
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An intermittent damage track was produced by this tornado. Formed near Elston around 225 am in Cole County and then crossed into Callaway County. Crossed the Missouri River into Osage County. Several barns near Frankenstein had part of their roofs blown off. |
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| 4/8/1999 | 600 pm | F1 | 8 | 200 | 0 | 0 | $1,000,000 | SD |
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The supercell that produced the tornado in Cole County produced another tornado in Osage County. Emergency officials estimated the damage to be around $1 million. 79 homes sustained some type of damage, mostly to roofs and siding. Fortunately almost all homes were covered by insurance. One mobile home was destroyed near Linn and several businesses sustained major roof damage. Hundreds of trees were downed northeast of Linn as the tornado tracked through a forested area. |
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| *Sources |
G - Grazulis, T. P., 1993: Significant Tornadoes
1680-1991. A Chronology and Analysis of Events. Environmental
Films, Tornado Project, St. Johsnbury, VT. |
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