Hail and tornadoes in Oliver County, ND

Since January 2021, radar estimated hail somewhere in Oliver County, ND on 61 days. The biggest estimate: 2 in or larger (hen egg), on Fri, Jul 24, 2026. Hail was reported to the National Weather Service inside the county on 7 days.

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

Days with hail
61
since January 2021
1 inch or larger
35
days, estimated or reported
Largest radar estimate
2+ in
Fri, Jul 24, 2026
Largest reported
3.5 in
Fri, Jun 27, 2025

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 Fri, Jul 24, 2026 around the place, with the hail reported that day
Fri, Jul 24, 2026: radar-estimated hail around Oliver County, ND, with the hail reported that day.

Hail on record since 1955

NOAA's Storm Events database lists 66 hail reports in Oliver County, ND on 39 days, 8 of them 2 inches or larger. The largest: 3.5 in, near Hannover, on Fri, Jun 27, 2025.

By decade: 2000s: 17 · 2010s: 29 · 2020s: 20

Tornadoes since 1950

4 tornadoes have touched Oliver County, ND since 1950, none of them rated F3/EF3 or stronger.

Every one

  • Fri, Jun 27, 2025 · EFU · 3.35 mi long, 100 yd wide · near Hannover
  • Tue, Jul 7, 2020 · EF1 · 0.22 mi long, 50 yd wide · near Sanger
  • Fri, Jul 21, 2017 · EF0 · 0.17 mi long, 25 yd wide · near Sanger
  • Mon, Aug 23, 2004 · F0 · 20 yd wide · near Center

By decade: 2000s: 1 · 2010s: 1 · 2020s: 2

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

Every hail day since January 2021

  • Fri, Sep 4, 2026

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

    No hail reported in the county.

  • Sun, Aug 30, 2026

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

    No hail reported in the county.

  • Tue, Aug 11, 2026

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

    No hail reported in the county.

  • Fri, Jul 24, 2026

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

    No hail reported in the county.

  • Sun, Jul 19, 2026

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

    No hail reported in the county.

  • Sat, Jul 18, 2026

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

    No hail reported in the county.

  • Fri, Jul 3, 2026

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

    No hail reported in the county.

  • Sun, Jun 28, 2026

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

    No hail reported in the county.

  • Sat, Jun 27, 2026

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

    No hail reported in the county.

  • Tue, Jun 9, 2026

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

    No hail reported in the county.

  • Fri, Sep 12, 2025

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

    No hail reported in the county.

  • Mon, Sep 8, 2025

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

    No hail reported in the county.

  • Wed, Aug 6, 2025

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

    No hail reported in the county.

  • Tue, Aug 5, 2025

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

    No hail reported in the county.

  • Fri, Jul 25, 2025

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

    No hail reported in the county.

  • Sun, Jul 20, 2025

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

    No hail reported in the county.

  • Mon, Jul 14, 2025

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

    No hail reported in the county.

  • Thu, Jul 3, 2025

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

    No hail reported in the county.

  • Fri, Jun 27, 2025

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

    Reported in the county
    • 3.5 in (2 S Hannover, ND)
    • 3 in (10 WNW Hannover, ND)
  • Sun, Jun 22, 2025

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

    No hail reported in the county.

  • Fri, Jun 20, 2025

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

    No hail reported in the county.

  • Sun, Sep 15, 2024

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

    No hail reported in the county.

  • Wed, Aug 28, 2024

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

    No hail reported in the county.

  • Wed, Aug 21, 2024

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

    No hail reported in the county.

  • Mon, Jul 29, 2024

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

    No hail reported in the county.

  • Mon, Jul 22, 2024

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

    No hail reported in the county.

  • Thu, Jul 18, 2024

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

    No hail reported in the county.

  • Fri, Jul 12, 2024

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

    Reported in the county
    • 1.75 in (1 NW Center, ND)
  • Mon, Jul 1, 2024

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

    Reported in the county
    • 1.25 in (Center, ND)
  • Sun, Jun 23, 2024

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

    No hail reported in the county.

  • Sun, Jun 2, 2024

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

    Reported in the county
    • 1 in (7 NW Hannover, ND)
  • Mon, Sep 4, 2023

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

    No hail reported in the county.

  • Tue, Aug 1, 2023

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

    No hail reported in the county.

  • Wed, Jun 28, 2023

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

    No hail reported in the county.

  • Tue, Jun 20, 2023

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

    No hail reported in the county.

  • Thu, Jun 8, 2023

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

    No hail reported in the county.

  • Sun, Jun 4, 2023

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

    No hail reported in the county.

  • Mon, May 29, 2023

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

    No hail reported in the county.

  • Sat, May 27, 2023

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

    No hail reported in the county.

  • Tue, May 9, 2023

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

    No hail reported in the county.

  • Mon, Sep 19, 2022

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

    No hail reported in the county.

  • Tue, Aug 23, 2022

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

    Reported in the county
    • 1 in (6 NNE HANNOVER, ND)
  • Mon, Aug 15, 2022

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

    No hail reported in the county.

  • Wed, Aug 10, 2022

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

    No hail reported in the county.

  • Thu, Jul 21, 2022

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

    No hail reported in the county.

  • Mon, Jul 18, 2022

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

    No hail reported in the county.

  • Sun, Jul 10, 2022

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

    No hail reported in the county.

  • Sat, Jul 9, 2022

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

    No hail reported in the county.

  • Thu, Jul 7, 2022

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

    No hail reported in the county.

  • Fri, Jun 24, 2022

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

    Reported in the county
    • 1 in (4 SW SANGER, ND)
  • Tue, May 17, 2022

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

    No hail reported in the county.

  • Thu, May 12, 2022

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

    No hail reported in the county.

  • Sat, Sep 18, 2021

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

    No hail reported in the county.

  • Mon, Aug 30, 2021

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

    Reported in the county
    • 1.5 in (10 W HANNOVER, ND)
  • Sun, Aug 15, 2021

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

    No hail reported in the county.

  • Tue, Jul 27, 2021

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

    No hail reported in the county.

  • Mon, Jul 26, 2021

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

    No hail reported in the county.

  • Fri, Jul 16, 2021

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

    No hail reported in the county.

  • Thu, Jun 10, 2021

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

    No hail reported in the county.

  • Tue, Jun 8, 2021

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

    No hail reported in the county.

  • Thu, May 20, 2021

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

    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.