Hail and tornadoes in Marion County, IA
Since January 2021, radar estimated hail somewhere in Marion County, IA on 67 days. The biggest estimate: 3 in or larger (teacup), on Thu, Jun 11, 2026. Hail was reported to the National Weather Service inside the county on 18 days.
Still loading: radar estimates go back to Wed, Oct 14, 2020, and the earlier years are being added.
Radar estimates are NOAA's MESH: the largest hail the radar estimates aloft, on cells about 0.7 mile across, shown as the lower bound of a size band (“1.5+”). They often run larger than what reached the ground, and they aren't evidence of damage at any address.
Hail on record since 1955
NOAA's Storm Events database lists 139 hail reports in Marion County, IA on 62 days, 11 of them 2 inches or larger. The largest: 4 in, near Harvey, on Sat, Jun 20, 2015.
By decade: 2000s: 30 · 2010s: 67 · 2020s: 42
Tornadoes since 1950
29 tornadoes have touched Marion County, IA since 1950, 1 of them rated F3/EF3 or stronger. They killed 0 and injured 24.
Strongest
- Thu, Jul 19, 2018 · EF3 · 5.11 mi long, 800 yd wide · near Pella · 13 injuries
- Fri, May 30, 2008 · EF2 · 12.28 mi long, 900 yd wide · near Columbia · 10 injuries
- Tue, Apr 4, 2023 · EF1 · 5.42 mi long, 100 yd wide · near Nepas
- Sun, Jun 20, 2021 · EF1 · 1.47 mi long, 150 yd wide · near Pella Muni Airport
- Tue, Aug 20, 2019 · EF1 · 1.58 mi long, 120 yd wide · near Tracy
Most recent
- Tue, May 7, 2024 · EF0 · 4.96 mi long, 80 yd wide · near Pershing
- Sat, May 13, 2023 · EF0 · 0.92 mi long, 50 yd wide · near Donnelly
- Sat, May 13, 2023 · EFU · 0.31 mi long, 30 yd wide · near Nepas
- Sat, May 13, 2023 · EF0 · 0.66 mi long, 40 yd wide · near Durham
- Sat, May 13, 2023 · EF0 · 0.54 mi long, 50 yd wide · near Flagler
- Sat, May 13, 2023 · EFU · 0.52 mi long, 30 yd wide · near Flagler
- Sat, May 13, 2023 · EF0 · 0.56 mi long, 40 yd wide · near Pleasantville
- Tue, Apr 4, 2023 · EF1 · 5.42 mi long, 100 yd wide · near Nepas
- Sun, Jun 20, 2021 · EF1 · 1.47 mi long, 150 yd wide · near Pella Muni Airport
- Tue, Aug 20, 2019 · EF1 · 1.58 mi long, 120 yd wide · near Tracy
By decade: 2000s: 9 · 2010s: 11 · 2020s: 9
Still loading: NOAA's record goes back to 1950, and 2003 onward is in so far.
Every hail day since January 2021
- Thu, Oct 8, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Tue, Sep 8, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Jul 20, 2026
Radar estimate anywhere in the county: 2 in or larger (hen egg)
No hail reported in the county.
- Fri, Jul 3, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Wed, Jun 17, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Tue, Jun 16, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Fri, Jun 12, 2026Reported in the county
- 1.75 in (Knoxville, IA)
- 1 in (1 NNW Knoxville, IA)
- 1.75 in (1 SSW Knoxville, IA)
- 1 in (2 S Knoxville, IA)
- 1.75 in (2 N Attica, IA)
- and 5 more
- Thu, Jun 11, 2026
Radar estimate anywhere in the county: 3 in or larger (teacup)
Reported in the county- 1.75 in (Knoxville, IA)
- 1 in (1 NNW Knoxville, IA)
- 1.75 in (1 SSW Knoxville, IA)
- 1 in (2 S Knoxville, IA)
- 1.75 in (2 N Attica, IA)
- and 5 more
- Wed, Jun 10, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Jun 5, 2026
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1 in (2 N Attica, IA)
- 1 in (2 N Attica, IA)
- 1.75 in (Pleasantville, IA)
- 1 in (Pleasantville, IA)
- 1.75 in (Pleasantville, IA)
- and 2 more
- Fri, May 15, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Fri, Apr 17, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (1 E Knoxville, IA)
- 1 in (Bussey, IA)
- Sat, Aug 9, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Wed, Aug 6, 2025
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Tue, Jul 29, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Jul 22, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Jul 18, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Jul 11, 2025
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Thu, Jul 10, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Jun 23, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, May 19, 2025Reported in the county
- 1 in (3 SW Knoxville, IA)
- Thu, Apr 17, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Tue, Mar 18, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Oct 24, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Oct 3, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (5 WNW Attica, IA)
- 1.75 in (4 NW Pella, IA)
- Wed, Jul 31, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Tue, Jul 30, 2024
Radar estimate anywhere in the county: 2 in or larger (hen egg)
Reported in the county- 1 in (4 E Lake Red Rock, IA)
- 1.25 in (2 W Pella, IA)
- 1 in (2 W Pella, IA)
- Wed, Jul 24, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Jul 15, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sun, Jul 7, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Jul 2, 2024
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Tue, Jun 25, 2024
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1 in (3 SE Pleasantville, IA)
- Sat, Jun 22, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, May 27, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, May 23, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Tue, May 21, 2024
Radar estimate anywhere in the county: 2 in or larger (hen egg)
Reported in the county- 1 in (2 W Pella, IA)
- 2 in (2 SSE Pella, IA)
- Mon, May 20, 2024
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Sun, May 19, 2024
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1 in (Pleasantville, IA)
- Sat, Apr 27, 2024
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Fri, Apr 26, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sat, Sep 16, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Fri, Jul 28, 2023
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1 in (2 N Attica, IA)
- Mon, Jul 17, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (Knoxville, IA)
- Sun, Jul 16, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (Bussey, IA)
- Tue, Jul 11, 2023
Radar estimate anywhere in the county: 2 in or larger (hen egg)
No hail reported in the county.
- Thu, Jun 29, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Jun 24, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Fri, Jun 2, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, May 13, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (1 NNW KNOXVILLE, IA)
- Sun, May 7, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Tue, Apr 4, 2023
Radar estimate anywhere in the county: 2 in or larger (hen egg)
Reported in the county- 1.25 in (2 S PLEASANTVILLE, IA)
- Fri, Mar 31, 2023
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1.5 in (4 E LAKE RED ROCK, IA)
- 1 in (2 E ATTICA, IA)
- Sun, Sep 18, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Sep 17, 2022
Radar estimate anywhere in the county: 2 in or larger (hen egg)
Reported in the county- 1 in (2 S LAKE RED ROCK, IA)
- Fri, Sep 2, 2022
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Fri, Aug 19, 2022
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sat, Jun 25, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Jun 21, 2022
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Wed, Jun 15, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Jun 6, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Sep 30, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Aug 28, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Aug 12, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Aug 10, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Aug 5, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, Jun 20, 2021
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Fri, Jun 18, 2021
Radar estimate anywhere in the county: 2 in or larger (hen egg)
Reported in the county- 2.5 in (4 ESE LAKE RED ROCK, IA)
- 1.5 in (4 WNW HARVEY, IA)
- 1.75 in (4 NW HARVEY, IA)
- Wed, Mar 17, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Mar 2, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
Radar estimates and reports are for anywhere inside the county's boundary. Radar estimates come from NOAA's MRMS estimated hail size (MESH), the largest hail the radar estimates aloft on a ~1 km grid. They often run larger than the hail that reached the ground, and they aren't an observation at any address. Reports are what people reported to the National Weather Service. Neither is proof of damage or an official record for an insurance claim. From NOAA's Storm Events Database (NCEI), which records tornadoes from 1950, hail and thunderstorm wind from 1955, and every kind of storm from 1996. A tornado that crossed county lines is counted in each county it touched. Recent months are added as NCEI publishes them, a few months behind. Damage is in the dollars of its year and is often an estimate.