Hail and tornadoes in McCook County, SD
Since January 2021, radar estimated hail somewhere in McCook County, SD on 68 days. The biggest estimate: 2 in or larger (hen egg), on Thu, Aug 6, 2026. Hail was reported to the National Weather Service inside the county on 11 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 124 hail reports in McCook County, SD on 73 days, 4 of them 2 inches or larger. The largest: 2.75 in, near Unityville, on Sat, Jul 22, 2023.
By decade: 2000s: 57 · 2010s: 38 · 2020s: 29
Tornadoes since 1950
6 tornadoes have touched McCook County, SD since 1950, none of them rated F3/EF3 or stronger.
Strongest
- Sat, May 5, 2007 · EF2 · 4 mi long, 400 yd wide · near Spencer
- Sat, Sep 16, 2006 · F2 · 12 mi long, 100 yd wide · near Bridgewater
- Sun, May 31, 2026 · EF0 · 1.19 mi long, 75 yd wide · near Bridgewater
- Wed, Jun 24, 2009 · EF0 · 0.33 mi long, 50 yd wide · near Bridgewater
- Sun, May 31, 2026 · EFU · 0.47 mi long, 40 yd wide · near Bridgewater
Most recent
- Sun, May 31, 2026 · EF0 · 1.19 mi long, 75 yd wide · near Bridgewater
- Sun, May 31, 2026 · EFU · 0.47 mi long, 40 yd wide · near Bridgewater
- Mon, May 30, 2022 · EFU · 0.83 mi long, 25 yd wide · near Montrose
- Wed, Jun 24, 2009 · EF0 · 0.33 mi long, 50 yd wide · near Bridgewater
- Sat, May 5, 2007 · EF2 · 4 mi long, 400 yd wide · near Spencer
- Sat, Sep 16, 2006 · F2 · 12 mi long, 100 yd wide · near Bridgewater
By decade: 2000s: 3 · 2020s: 3
Still loading: NOAA's record goes back to 1950, and 2003 onward is in so far.
Every hail day since January 2021
- Sun, Sep 13, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Sep 11, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Aug 20, 2026
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Wed, Aug 19, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Aug 6, 2026
Radar estimate anywhere in the county: 2 in or larger (hen egg)
No hail reported in the county.
- Sat, Jul 25, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Jul 2, 2026
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1 in (3 NE Emery, SD)
- 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: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Jun 4, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, May 31, 2026
Radar estimate anywhere in the county: 2 in or larger (hen egg)
No hail reported in the county.
- Sun, May 24, 2026
Radar estimate anywhere in the county: 2 in or larger (hen egg)
No hail reported in the county.
- Sun, May 17, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Aug 21, 2025
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Sun, Aug 17, 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)
Reported in the county- 1.75 in (5 WSW Canova, SD)
- Tue, Jul 29, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Jul 28, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, Jul 27, 2025
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
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.
- Fri, Jul 18, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Jul 9, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (6 SW Humboldt, SD)
- Mon, Jul 7, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Wed, Jun 11, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Tue, May 20, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Wed, May 14, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, Apr 27, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Sep 20, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Aug 26, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Jul 31, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (Canistota, SD)
- Tue, Jul 30, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Jul 29, 2024
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1.75 in (Salem, SD)
- Mon, Jul 15, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Fri, Jun 21, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sun, Jun 16, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Jun 12, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (4 NE Canistota, SD)
- Sun, Jun 2, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, May 30, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, May 12, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Fri, Apr 26, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Apr 15, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Aug 10, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
Reported in the county- 1.5 in (5 WSW Bridgewater, SD)
- Tue, Jul 25, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Jul 22, 2023
Radar estimate anywhere in the county: 2 in or larger (hen egg)
Reported in the county- 1.5 in (2 SSW Salem, SD)
- 2.75 in (6 ENE Spencer, SD)
- Fri, Jul 21, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Jul 11, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Jun 1, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, May 4, 2023
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Sun, Oct 23, 2022
Radar estimate anywhere in the county: 2 in or larger (hen egg)
No hail reported in the county.
- Tue, Aug 2, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, Jul 31, 2022
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Jul 21, 2022
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Tue, Jul 5, 2022
Radar estimate anywhere in the county: 2 in or larger (hen egg)
No hail reported in the county.
- Mon, Jun 20, 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: 1 in or larger (quarter)
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.
- Wed, May 11, 2022
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1.75 in (5 SW SALEM, SD)
- Tue, Apr 12, 2022
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1.75 in (3 E EMERY, SD)
- Mon, Jan 10, 2022
Radar estimate anywhere in the county: 2 in or larger (hen egg)
No hail reported in the county.
- Mon, Aug 30, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sat, Aug 28, 2021
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1.75 in (3 S SALEM, SD)
- 1.75 in (SALEM, SD)
- 1.5 in (5 E CANISTOTA, SD)
- 1 in (6 SW ORLAND, SD)
- Sun, Aug 22, 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: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Sun, Jul 25, 2021
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Thu, Jul 8, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Jul 5, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Apr 5, 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.