Tornado History
Big Rock Tornado History
This location page summarizes tornado records that list Big Rock, Iowa as a begin or end location. The dataset includes 3 matching records from 2017 through 2024. The strongest matching rating is EF1 (Moderate damage), the latest matching tornado is May 24, 2024, and minimum reported property damage totals $10K.
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Key Tornado Statistics
Key Tornado Facts for Big Rock, Iowa
Top local patterns from the historical tornado records in this group.
Average 0.4 tornadoes per year (0.3/yr in last decade)
March is the peak tornado month with 2 recorded events
Deadliest tornado: EF1 in Big Rock, Iowa with 0 deaths
2017 was the most active year with 1 tornadoes
The 2020s had the most tornado activity (2 events)
Longest tornado: 12.17 miles in Big Rock, Iowa
Widest tornado: 200.0 yards in Big Rock, Iowa
Most tornadoes in one day: 1 on Mar 6, 2017
Monthly Distribution
Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.
Summary: In Big Rock, Iowa, March is the most active month with 2 tornadoes.
Annual Tornado Trend
Shows year-by-year tornado counts, making active years and quiet stretches easier to spot.
Summary: 2017 was the most active year with 1 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 2017 with at least $10K 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 Big 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 |
|---|---|---|---|---|---|---|---|
| March 6, 2017 | EF1 | Clinton, Iowa | 11.3 mi | 100 yd | 0 | 0 | $10K |
| May 24, 2024 | EF1 | Clinton, Iowa | 12.17 mi | 50 yd | 0 | 0 | N/A |
| March 31, 2023 | EF0 | Clinton, Iowa | 2.93 mi | 200 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.