Tornado History
Shell Rock Tornado History
This location page summarizes tornado records that list Shell Rock, Iowa as a begin or end location. The dataset includes 6 matching records from 1998 through 2021. The strongest matching rating is F2 (Considerable damage), the latest matching tornado is July 14, 2021, and minimum reported property damage totals $585K.
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Key Tornado Statistics
Key Tornado Facts for Shell Rock, Iowa
Top local patterns from the historical tornado records in this group.
Average 0.2 tornadoes per year (0.1/yr in last decade)
June is the peak tornado month with 3 recorded events
Deadliest tornado: F2 in Shell Rock, Iowa with 0 deaths
2014 was the most active year with 2 tornadoes
The 2000s had the most tornado activity (2 events)
Longest tornado: 20.5 miles in Shell Rock, Iowa
Widest tornado: 630.0 yards in Shell Rock, Iowa
Most tornadoes in one day: 1 on Jun 27, 1998
Monthly Distribution
Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.
Summary: In Shell Rock, Iowa, June is the most active month with 3 tornadoes.
Annual Tornado Trend
Shows year-by-year tornado counts, making active years and quiet stretches easier to spot.
Summary: 2014 was the most active year with 2 recorded tornadoes.
Property Damage Trends
Visualizes reported property damage over time. Bars use a log-like scale so very large damage years do not flatten the rest of the chart.
Summary: The highest reported property damage year in this group is 2021 with at least $300K in NOAA-listed property damage.
Historical Track Sketch
This map covers the wider location—not your exact property.Measure the closest recorded track to a street address in or near Shell Rock, Iowa.
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Notable Tornado Records
The table highlights the strongest and most damaging records in this page's local dataset. Damage totals are NOAA-reported minimum estimates where available.
| Date | Rating | Area | Length | Width | Deaths | Injuries | Min. property damage |
|---|---|---|---|---|---|---|---|
| June 27, 1998 | F2 | Butler, Iowa | 20.5 mi | 75 yd | 0 | 0 | $10K |
| July 14, 2021 | EF1 | Butler, Iowa | 3.13 mi | 630 yd | 0 | 0 | $300K |
| June 16, 2014 | EF1 | Butler, Iowa | 2.12 mi | 120 yd | 0 | 0 | $200K |
| September 6, 2001 | F1 | Butler, Iowa | 1.5 mi | 75 yd | 0 | 0 | $75K |
| June 21, 2007 | EF0 | Butler, Iowa | 0.1 mi | 30 yd | 0 | 0 | N/A |
| August 31, 2014 | EF0 | Butler, Iowa | 0.21 mi | 50 yd | 0 | 0 | N/A |
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Source And Limits
Data sourced from NOAA Storm Prediction Center and the NCEI Storm Events Database. TornadoTrace summarizes reported weather events for screening and research; it is not a damage assessment, inspection, or insurance determination. Coordinates and records can be approximate, incomplete, revised, or missing. No warranty of completeness or accuracy.