National Weather Service United States Department of Commerce

Strengthening Storm in the Upper Great Lakes; Thunderstorms in the Ohio Valley and Mid-Atlantic

A strengthening storm system over the Upper Great Lakes will bring moderate to heavy snow to the Upper Peninsula of Michigan through Tuesday morning. Ahead of this system, strong to severe storms may develop over the Ohio Valley, portions of the Appalachians, and the Mid Atlantic Monday. Read More >

 

Johnson County Tornado Climatology Page
1880-Present

 
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Johnson County Graphical Tornado Data

 

Tornadoes in Johnson Co. by Year


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Tornadoes in Johnson Co.
by Rating


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Tornadoes in Johnson Co.
by Intensity


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Tornadoes in Johnson Co.
by Month


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Tornadoes in Johnson Co.
by Time of Day


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