Hail and tornadoes in Harper County, KS

Since January 2021, radar estimated hail somewhere in Harper County, KS on 107 days. The biggest estimate: 3 in or larger (teacup), on Sat, Sep 12, 2026. Hail was reported to the National Weather Service inside the county on 9 days.

Still loading: radar estimates go back to Wed, Oct 14, 2020, and the earlier years are being added.

Days with hail
107
since January 2021
1 inch or larger
70
days, estimated or reported
Largest radar estimate
3+ in
Sat, Sep 12, 2026
Largest reported
2.75 in
Tue, Apr 30, 2024

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.

Radar-estimated hail on Sat, Sep 12, 2026 around the place, with the hail reported that day
Sat, Sep 12, 2026: radar-estimated hail around Harper County, KS, with the hail reported that day.

Hail on record since 1955

NOAA's Storm Events database lists 151 hail reports in Harper County, KS on 85 days, 10 of them 2 inches or larger. The largest: 4.5 in, near Attica, on Wed, Jul 9, 2003.

By decade: 2000s: 85 · 2010s: 51 · 2020s: 15

Tornadoes since 1950

29 tornadoes have touched Harper County, KS since 1950, 3 of them rated F3/EF3 or stronger. They killed 0 and injured 1.

Strongest

  • Wed, May 12, 2004 · F4 · 1.2 mi long, 500 yd wide · near Harper · 1 injury
  • Sat, May 19, 2012 · EF3 · 5.3 mi long, 100 yd wide · near Duquoin
  • Sat, May 19, 2012 · EF3 · 9.68 mi long, 150 yd wide · near Attica
  • Sat, May 25, 2024 · EF2 · 6.7 mi long, 100 yd wide · near Waldron
  • Sat, May 29, 2004 · F2 · 8 mi long, 500 yd wide · near Anthony

Most recent

  • Tue, Jun 17, 2025 · EF0 · 0.06 mi long, 10 yd wide · near Harper
  • Sat, May 25, 2024 · EF2 · 6.7 mi long, 100 yd wide · near Waldron
  • Sun, Jun 23, 2019 · EFU · 0.56 mi long, 50 yd wide · near Harper
  • Sun, Jun 23, 2019 · EFU · 0.81 mi long, 50 yd wide · near Attica
  • Wed, May 6, 2015 · EF0 · 0.25 mi long, 50 yd wide · near Anthony
  • Sun, Dec 14, 2014 · EF0 · 5.98 mi long, 100 yd wide · near Harper
  • Sat, May 19, 2012 · EF3 · 9.68 mi long, 150 yd wide · near Attica
  • Sat, May 19, 2012 · EF3 · 5.3 mi long, 100 yd wide · near Duquoin
  • Sat, Apr 14, 2012 · EF1 · 22.33 mi long, 1,000 yd wide · near Waldron
  • Sat, Mar 7, 2009 · EF0 · 0.53 mi long, 75 yd wide · near Attica

By decade: 2000s: 20 · 2010s: 7 · 2020s: 2

Still loading: NOAA's record goes back to 1950, and 2003 onward is in so far.

Every hail day since January 2021

  • Tue, Oct 13, 2026

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Sat, Sep 19, 2026

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Tue, Sep 15, 2026

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Sat, Sep 12, 2026

    Radar estimate anywhere in the county: 3 in or larger (teacup)

    No hail reported in the county.

  • Fri, Aug 7, 2026

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Sat, Jul 11, 2026

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Sat, Jul 4, 2026

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Fri, Jun 26, 2026

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Thu, Jun 25, 2026

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Sun, Jun 21, 2026

    Radar estimate anywhere in the county: 2 in or larger (hen egg)

    Reported in the county
    • 1 in (1 W Harper, KS)
  • Sat, Jun 20, 2026

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Thu, Jun 18, 2026

    Radar estimate anywhere in the county: 2 in or larger (hen egg)

    Reported in the county
    • 1 in (3 NNW Anthony, KS)
    • 1 in (Anthony, KS)
    • 1.5 in (Anthony, KS)
    • 1.75 in (Anthony, KS)
  • Wed, Jun 17, 2026

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Sat, Jun 13, 2026

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Mon, Jun 1, 2026

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Sat, May 30, 2026

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Fri, May 29, 2026

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Fri, May 22, 2026

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Mon, May 18, 2026

    Radar estimate anywhere in the county: 2 in or larger (hen egg)

    No hail reported in the county.

  • Fri, Apr 17, 2026

    Radar estimate anywhere in the county: 2 in or larger (hen egg)

    Reported in the county
    • 1 in (1 WSW Bluff City, KS)
  • Tue, Mar 10, 2026

    Radar estimate anywhere in the county: 2 in or larger (hen egg)

    Reported in the county
    • 1 in (Anthony, KS)
  • Thu, Mar 5, 2026

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Tue, Mar 3, 2026

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Fri, Oct 24, 2025

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Mon, Oct 6, 2025

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Mon, Sep 8, 2025

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Wed, Sep 3, 2025

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Mon, Sep 1, 2025

    Radar estimate anywhere in the county: 2 in or larger (hen egg)

    Reported in the county
    • 2.5 in (Attica, KS)
  • Tue, Aug 19, 2025

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Sun, Aug 10, 2025

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Wed, Jul 30, 2025

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Thu, Jul 24, 2025

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Mon, Jul 21, 2025

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    Reported in the county
    • 1 in (4 ENE Runnymede, KS)
  • Fri, Jul 18, 2025

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Tue, Jul 8, 2025

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Sun, Jul 6, 2025

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Sun, Jun 29, 2025

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    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.

  • Tue, Jun 17, 2025

    Radar estimate anywhere in the county: 2 in or larger (hen egg)

    No hail reported in the county.

  • Mon, Jun 16, 2025

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Sat, Jun 7, 2025

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Thu, Jun 5, 2025

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Tue, Jun 3, 2025

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Sat, May 24, 2025

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    Reported in the county
    • 1 in (Anthony, KS)
  • Tue, Apr 22, 2025

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Thu, Aug 1, 2024

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Sat, Jul 20, 2024

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Tue, Jul 16, 2024

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Tue, Jun 4, 2024

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Sat, Jun 1, 2024

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Sat, May 25, 2024

    Radar estimate anywhere in the county: 2 in or larger (hen egg)

    Reported in the county
    • 2 in (11 NNW Waldron, KS)
  • Wed, May 15, 2024

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Fri, May 3, 2024

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Tue, Apr 30, 2024

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    Reported in the county
    • 2.75 in (Anthony, KS)
    • 1.75 in (Harper, KS)
  • Sat, Apr 27, 2024

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Thu, Apr 25, 2024

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Tue, Oct 3, 2023

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Sun, Aug 13, 2023

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Sat, Aug 12, 2023

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Sat, Aug 5, 2023

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Sun, Jul 30, 2023

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Mon, Jul 17, 2023

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Fri, Jul 14, 2023

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Fri, Jul 7, 2023

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Wed, Jul 5, 2023

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Tue, Jun 27, 2023

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Wed, Jun 21, 2023

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Sat, Jun 17, 2023

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Tue, Jun 6, 2023

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Mon, Jun 5, 2023

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    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.

  • Thu, Jun 1, 2023

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Sun, May 28, 2023

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Fri, Nov 4, 2022

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Sun, Aug 28, 2022

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Sat, Jul 2, 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.

  • Wed, Jun 22, 2022

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Sat, Jun 11, 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.

  • Sun, Jun 5, 2022

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Sat, Jun 4, 2022

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Mon, May 30, 2022

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Sun, May 29, 2022

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Mon, May 16, 2022

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Sat, May 14, 2022

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Fri, May 13, 2022

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Thu, Apr 28, 2022

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Wed, Apr 20, 2022

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Tue, Apr 12, 2022

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Tue, Mar 29, 2022

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Wed, Feb 9, 2022

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Sat, Jan 29, 2022

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Sun, Jan 2, 2022

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Tue, Oct 12, 2021

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Sun, Sep 5, 2021

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Fri, Aug 20, 2021

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Sat, Jul 31, 2021

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Sun, Jul 25, 2021

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Fri, Jul 16, 2021

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Fri, Jun 11, 2021

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Wed, Jun 2, 2021

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Thu, May 27, 2021

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Sat, May 15, 2021

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Tue, Apr 6, 2021

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Tue, Mar 16, 2021

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Fri, Mar 12, 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.