June 1860 Mid-Mississippi Valley tornado outbreak
Encyclopedia

Confirmed tornadoes

List of known tornadoes – Wednesday, June 3, 1860
F#
Fujita scale
The Fujita scale , or Fujita-Pearson scale, is a scale for rating tornado intensity, based primarily on the damage tornadoes inflict on human-built structures and vegetation...

Location
County
Coord.
Time
Path length
Damage
Iowa
Iowa
Iowa is a state located in the Midwestern United States, an area often referred to as the "American Heartland". It derives its name from the Ioway people, one of the many American Indian tribes that occupied the state at the time of European exploration. Iowa was a part of the French colony of New...

F4 Union Township
Union, Iowa
Union is a city in Hardin County, Iowa, United States. The population was 427 at the 2000 census.-Geography:Union is located at .According to the United States Census Bureau, the city has a total area of , all of it land....

 area
Hardin County
Hardin County, Iowa
-2010 census:The 2010 census recorded a population of 17,534 in the county, with a population density of . There were 8,224 housing units, of which 7,296 were occupied.-2000 census:...

, Grundy County
Grundy County, Iowa
-2010 census:The 2010 census recorded a population of 12,453 in the county, with a population density of . There were 5,530 housing units, of which 5,131 were occupied.-2000 census:...

, Marshall County
Marshall County, Iowa
-2010 census:The 2010 census recorded a population of 40,648 in the county, with a population density of . There were 16,831 housing units, of which 15,538 were occupied.-2000 census:...

4:30 PM 35 miles (56.3 km) 7 deaths - Settlement of Pritchard's Grove caught by surprise; this is where the deaths occurred.
F4 Greenfield
Greenfield, Iowa
Greenfield is a city in Greenfield Township, Adair County, Iowa, United States. The population was 2,129 at the 2000 census. It is the county seat of Adair County. The current courthouse, which sits in the middle of the Greenfield Square, was built in 1891 and is listed on the National Register of...

 and Rome Township
Rome, Iowa
Rome is a city in Henry County, Iowa, United States. The population was 113 at the 2000 census.-Geography:Rome's longitude and latitude coordinatesin decimal form are 40.983047, -91.683033....

 areas
Benton County
Benton County, Iowa
-2010 census:The 2010 census recorded a population of 26,076 in the county, with a population density of . There were 11,095 housing units, of which 10,302 were occupied.-2000 census:...

, Linn County
Linn County, Iowa
-2010 census:The 2010 census recorded a population of 211,226 in the county, with a population density of . There were 92,251 housing units, of which 86,134 were occupied.-2000 census:...

, Jones County
Jones County, Iowa
-2010 census:The 2010 census recorded a population of 20,638 in the county, with a population density of . There were 8,911 housing units, of which 8,151 were occupied.-2000 census:...

5:30 PM 35 miles (56.3 km) 9 deaths -
F5 Near Mount Vernon
Mount Vernon, Iowa
Mount Vernon is a city in Linn County, Iowa, United States, adjacent to the city of Lisbon. The city's population was 3,390 when the 2000 census figures were released, but that number was later revised to 3,808 because the Census Bureau had incorrectly reported that 418 residents of a Cornell...

 and Mechanicsville
Mechanicsville, Iowa
Mechanicsville is a city in Cedar County, Iowa, United States. The population was 1,173 at the 2000 census. It is named for the many mechanics among the city's early settlers.-Geography:Mechanicsville is located at ....

Linn County
Linn County, Iowa
-2010 census:The 2010 census recorded a population of 211,226 in the county, with a population density of . There were 92,251 housing units, of which 86,134 were occupied.-2000 census:...

, Cedar County
Cedar County, Iowa
-2010 census:The 2010 census recorded a population of 13,956 in the county, with a population density of . There were 8,064 housing units, of which 7,511 were occupied.-2000 census:...

, Clinton County
Clinton County, Iowa
-2010 census:The 2010 census recorded a population of 49,116 in the county, with a population density of . There were 21,733 housing units, of which 20,223 were occupied.-2000 census:...

5:45 PM 40 miles (64.4 km) 24 deaths - Merged with Comanche tornado (see below)
F3 Rogers Grove Linn County
Linn County, Iowa
-2010 census:The 2010 census recorded a population of 211,226 in the county, with a population density of . There were 92,251 housing units, of which 86,134 were occupied.-2000 census:...

, Johnson County
Johnson County, Iowa
-2010 census:The 2010 census recorded a population of 130,882 in the county, with a population density of . There were 55,967 housing units, of which 52,715 were occupied.-2000 census:...

6:00 PM 20 miles (32.2 km) 8 deaths - May have been the beginning of the Comanche tornado (see below)
F5 Comanche, Iowa and Albany, Illinois
Albany, Illinois
Albany is a village in Whiteside County, Illinois, United States. The population was 891 at the 2010 census, down from 895 at the 2000 census.-Geography:Albany is located at ....

Cedar County
Cedar County, Iowa
-2010 census:The 2010 census recorded a population of 13,956 in the county, with a population density of . There were 8,064 housing units, of which 7,511 were occupied.-2000 census:...

, Clinton County
Clinton County, Iowa
-2010 census:The 2010 census recorded a population of 49,116 in the county, with a population density of . There were 21,733 housing units, of which 20,223 were occupied.-2000 census:...

, Whiteside (IL)
6:20 PM 80 miles (128.7 km) 94 deaths - May have been a family of tornadoes, but also may have connected to other tornadoes (see above).
Illinois
Illinois
Illinois is the fifth-most populous state of the United States of America, and is often noted for being a microcosm of the entire country. With Chicago in the northeast, small industrial cities and great agricultural productivity in central and northern Illinois, and natural resources like coal,...

F4 W of Tampico
Tampico, Illinois
Tampico is a village located in Tampico Township, Whiteside County, Illinois, United States. As of the 2010 census the village had a total population of 790, up from 772 at the 2000 census. U.S. President Ronald Reagan was born there and lived there for two brief periods of his...

 to near Willow Creek Township
Whiteside, Lee County, DeKalb County
DeKalb County, Illinois
DeKalb County is a county located in the U.S. state of Illinois. According to the 2010 census, it has a population of 105,160, which is an increase of 18.2% from 88,969 in 2000. Its county seat is Sycamore. DeKalb County is part of the Chicago metropolitan statistical area.-History:DeKalb County...

8:45 PM 65 miles (104.6 km) 8 deaths - Likely a family of tornadoes
F2 W of Elgin
Elgin, Illinois
Elgin is a city in northern Illinois located roughly northwest of Chicago on the Fox River. Most of Elgin lies within Kane County, Illinois, with a portion in Cook County, Illinois...

 to near Dundee
Kane County
Kane County, Illinois
Kane County is a county located in the U.S. state of Illinois. According to the 2010 census, it has a population of 515,269, which is an increase of 27.5% from 404,119 in 2000. Its county seat is Geneva, and its largest city is Aurora.- Geography :...

, Cook County
Cook County, Illinois
Cook County is a county in the U.S. state of Illinois, with its county seat in Chicago. It is the second most populous county in the United States after Los Angeles County. The county has 5,194,675 residents, which is 40.5 percent of all Illinois residents. Cook County's population is larger than...

, Lake County
Lake County, Illinois
Lake County is a county in the northeastern corner of the state of Illinois, on the shore of Lake Michigan. According to the 2010 census, it has a population of 703,462, which is an increase of 9.2% from 644,356 in 2000. Its county seat is Waukegan. The county is part of the Chicago metropolitan area...

9:30 PM 15 miles (24.1 km)
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