Hail and tornadoes in Santa Cruz County, AZ

Since January 2021, radar estimated hail somewhere in Santa Cruz County, AZ on 164 days. The biggest estimate: 2 in or larger (hen egg), on Thu, Oct 22, 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
164
since January 2021
1 inch or larger
107
days, estimated or reported
Largest radar estimate
2+ in
Thu, Oct 22, 2026
Largest reported
3 in
Thu, Oct 22, 2026

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 Thu, Oct 22, 2026 around the place, with the hail reported that day
Thu, Oct 22, 2026: radar-estimated hail around Santa Cruz County, AZ, with the hail reported that day.

Hail on record since 1955

NOAA's Storm Events database lists 35 hail reports in Santa Cruz County, AZ on 30 days, 0 of them 2 inches or larger. The largest: 1.75 in, near Sonoita, on Sun, Oct 21, 2018.

By decade: 2000s: 13 · 2010s: 12 · 2020s: 10

Tornadoes since 1950

1 tornado has touched Santa Cruz County, AZ since 1950, none of them rated F3/EF3 or stronger.

Every one

  • Wed, May 9, 2012 · EF0 · 0.31 mi long, 25 yd wide · near Nogales

By decade: 2010s: 1

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

Every hail day since January 2021

  • Thu, Oct 22, 2026

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

    Reported in the county
    • 1 in (11 NE Patagonia, AZ)
    • 1.75 in (1 S Rio Rico, AZ)
    • 3 in (5 SW Rio Rico, AZ)
    • 1.5 in (5 SW Rio Rico, AZ)
  • Wed, Sep 23, 2026

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

    No hail reported in the county.

  • Mon, Sep 14, 2026

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

    No hail reported in the county.

  • Sun, Sep 13, 2026

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

    No hail reported in the county.

  • Sat, Sep 12, 2026

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

    No hail reported in the county.

  • Fri, Sep 11, 2026

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

    No hail reported in the county.

  • Wed, Sep 9, 2026

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

    No hail reported in the county.

  • Wed, Sep 2, 2026

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

    No hail reported in the county.

  • Mon, Aug 31, 2026

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

    No hail reported in the county.

  • Sat, Aug 29, 2026

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

    No hail reported in the county.

  • Thu, Aug 27, 2026

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

    No hail reported in the county.

  • Wed, Aug 26, 2026

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

    No hail reported in the county.

  • Sun, Aug 23, 2026

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

    No hail reported in the county.

  • Sat, Aug 22, 2026

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

    No hail reported in the county.

  • Fri, Aug 21, 2026

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

    No hail reported in the county.

  • Wed, Aug 19, 2026

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

    Reported in the county
    • 1 in (1 W Rio Rico, AZ)
  • Fri, Aug 14, 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: 1 in or larger (quarter)

    No hail reported in the county.

  • Mon, Aug 10, 2026

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

    No hail reported in the county.

  • Sun, Aug 9, 2026

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

    No hail reported in the county.

  • Fri, Aug 7, 2026

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

    No hail reported in the county.

  • Wed, Aug 5, 2026

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

    No hail reported in the county.

  • Mon, Aug 3, 2026

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

    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.

  • Tue, Jul 21, 2026

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

    No hail reported in the county.

  • Thu, Jul 16, 2026

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

    No hail reported in the county.

  • Wed, Jul 15, 2026

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

    No hail reported in the county.

  • Tue, Jul 14, 2026

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

    No hail reported in the county.

  • Sun, Jul 12, 2026

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

    No hail reported in the county.

  • Sat, Jul 11, 2026

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

    No hail reported in the county.

  • Wed, Jun 24, 2026

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

    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: 0.75 in or larger (penny)

    No hail reported in the county.

  • Sun, Jun 14, 2026

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

    No hail reported in the county.

  • Sun, Mar 29, 2026

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

    No hail reported in the county.

  • Thu, Sep 25, 2025

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

    No hail reported in the county.

  • Sun, Sep 21, 2025

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

    No hail reported in the county.

  • Thu, Sep 18, 2025

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

    No hail reported in the county.

  • Mon, Sep 15, 2025

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

    No hail reported in the county.

  • Sun, Sep 7, 2025

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

    No hail reported in the county.

  • Sat, Sep 6, 2025

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

    No hail reported in the county.

  • Mon, Aug 25, 2025

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

    No hail reported in the county.

  • Wed, Aug 20, 2025

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

    No hail reported in the county.

  • Fri, Aug 15, 2025

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

    No hail reported in the county.

  • Mon, Aug 11, 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: 0.75 in or larger (penny)

    No hail reported in the county.

  • Sat, Aug 9, 2025

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

    No hail reported in the county.

  • Thu, Jul 31, 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 in or larger (quarter)

    No hail reported in the county.

  • Tue, Jul 15, 2025

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

    No hail reported in the county.

  • Sun, Jul 13, 2025

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

    No hail reported in the county.

  • Tue, Jul 8, 2025

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

    No hail reported in the county.

  • Wed, Jul 2, 2025

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

    No hail reported in the county.

  • Sun, Sep 15, 2024

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

    No hail reported in the county.

  • Fri, Aug 23, 2024

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

    No hail reported in the county.

  • Thu, Aug 22, 2024

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

    No hail reported in the county.

  • Tue, Aug 20, 2024

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

    No hail reported in the county.

  • Mon, Aug 19, 2024

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

    No hail reported in the county.

  • Sun, Aug 18, 2024

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

    No hail reported in the county.

  • Sat, Aug 17, 2024

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

    No hail reported in the county.

  • Fri, Aug 16, 2024

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

    No hail reported in the county.

  • Tue, Aug 13, 2024

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

    No hail reported in the county.

  • Mon, Aug 12, 2024

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

    No hail reported in the county.

  • Thu, Aug 8, 2024

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

    No hail reported in the county.

  • Wed, Aug 7, 2024

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

    No hail reported in the county.

  • Tue, Aug 6, 2024

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

    No hail reported in the county.

  • Mon, Aug 5, 2024

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

    No hail reported in the county.

  • Sun, Aug 4, 2024

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

    No hail reported in the county.

  • Sat, Aug 3, 2024

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

    No hail reported in the county.

  • Thu, Aug 1, 2024

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

    No hail reported in the county.

  • Wed, Jul 31, 2024

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

    No hail reported in the county.

  • Sun, Jul 28, 2024

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

    No hail reported in the county.

  • Sat, Jul 27, 2024

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

    No hail reported in the county.

  • Fri, Jul 26, 2024

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

    No hail reported in the county.

  • Thu, Jul 25, 2024

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

    No hail reported in the county.

  • Sun, Jul 21, 2024

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

    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.

  • Thu, Jul 18, 2024

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

    No hail reported in the county.

  • Tue, Jul 16, 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 14, 2024

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

    No hail reported in the county.

  • Wed, Jul 10, 2024

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

    No hail reported in the county.

  • Tue, Jul 9, 2024

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

    No hail reported in the county.

  • Fri, Jul 5, 2024

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

    No hail reported in the county.

  • Sun, Jun 30, 2024

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

    No hail reported in the county.

  • Thu, Jun 27, 2024

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

    No hail reported in the county.

  • Wed, Jun 26, 2024

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

    No hail reported in the county.

  • Sun, Jun 23, 2024

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

    No hail reported in the county.

  • Tue, Sep 12, 2023

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

    No hail reported in the county.

  • Mon, Sep 11, 2023

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

    No hail reported in the county.

  • Thu, Aug 31, 2023

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

    No hail reported in the county.

  • Mon, Aug 21, 2023

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

    No hail reported in the county.

  • Fri, Aug 18, 2023

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

    No hail reported in the county.

  • Thu, Aug 17, 2023

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

    No hail reported in the county.

  • Sat, Aug 12, 2023

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

    No hail reported in the county.

  • Tue, Aug 8, 2023

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

    No hail reported in the county.

  • Mon, Aug 7, 2023

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

    No hail reported in the county.

  • Sun, Aug 6, 2023

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

    No hail reported in the county.

  • Sat, Jul 29, 2023

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

    No hail reported in the county.

  • Fri, Jul 28, 2023

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

    No hail reported in the county.

  • Thu, Jul 27, 2023

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

    No hail reported in the county.

  • Wed, Jul 26, 2023

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

    Reported in the county
    • 1 in (2 SSW Nogales, AZ)
  • Sun, Jul 23, 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: 0.75 in or larger (penny)

    No hail reported in the county.

  • Fri, Jul 21, 2023

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

    No hail reported in the county.

  • Wed, Jul 19, 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.

  • Thu, Jul 13, 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: 0.75 in or larger (penny)

    No hail reported in the county.

  • Sat, Jul 8, 2023

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

    No hail reported in the county.

  • Sat, Oct 8, 2022

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

    No hail reported in the county.

  • Fri, Oct 7, 2022

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

    No hail reported in the county.

  • Mon, Sep 26, 2022

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

    No hail reported in the county.

  • Fri, Sep 23, 2022

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

    No hail reported in the county.

  • Thu, Sep 22, 2022

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

    No hail reported in the county.

  • Wed, Sep 21, 2022

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

    No hail reported in the county.

  • Mon, Sep 12, 2022

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

    No hail reported in the county.

  • Sun, Sep 11, 2022

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

    No hail reported in the county.

  • Tue, Aug 16, 2022

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

    No hail reported in the county.

  • Mon, Aug 15, 2022

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

    No hail reported in the county.

  • Sat, Aug 13, 2022

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

    No hail reported in the county.

  • Thu, Aug 11, 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.

  • Tue, Aug 9, 2022

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

    No hail reported in the county.

  • Sun, Aug 7, 2022

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

    No hail reported in the county.

  • Sat, Aug 6, 2022

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

    No hail reported in the county.

  • Fri, Aug 5, 2022

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

    No hail reported in the county.

  • Wed, Aug 3, 2022

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

    No hail reported in the county.

  • Tue, Aug 2, 2022

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

    No hail reported in the county.

  • Mon, Aug 1, 2022

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

    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.

  • Sat, Jul 30, 2022

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

    No hail reported in the county.

  • Wed, Jul 27, 2022

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

    No hail reported in the county.

  • Sun, Jul 24, 2022

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

    No hail reported in the county.

  • Fri, Jul 22, 2022

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

    Reported in the county
    • 1 in (PATAGONIA, AZ)
  • Tue, Jul 19, 2022

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

    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 17, 2022

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

    No hail reported in the county.

  • Sat, Jul 16, 2022

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

    Reported in the county
    • 1.5 in (3 SSW RIO RICO, AZ)
    • 1 in (4 SSW RIO RICO, AZ)
  • Wed, Jun 29, 2022

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

    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 18, 2022

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

    No hail reported in the county.

  • Thu, Jun 9, 2022

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

    No hail reported in the county.

  • Wed, Oct 6, 2021

    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.

  • Sun, Sep 26, 2021

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

    No hail reported in the county.

  • Mon, Sep 6, 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: 1.5 in or larger (ping-pong ball)

    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.

  • Mon, Aug 16, 2021

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

    No hail reported in the county.

  • Fri, Aug 13, 2021

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

    No hail reported in the county.

  • Sun, Aug 8, 2021

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

    No hail reported in the county.

  • Sat, Aug 7, 2021

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

    No hail reported in the county.

  • Fri, Aug 6, 2021

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

    Reported in the county
    • 1 in (5 SW RIO RICO, AZ)
  • Thu, Aug 5, 2021

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

    No hail reported in the county.

  • Thu, Jul 29, 2021

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

    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.

  • Thu, Jul 22, 2021

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

    No hail reported in the county.

  • Tue, Jul 20, 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: 1 in or larger (quarter)

    No hail reported in the county.

  • Wed, Jul 14, 2021

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

    No hail reported in the county.

  • Mon, Jul 12, 2021

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

    No hail reported in the county.

  • Sat, Jul 10, 2021

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

    Reported in the county
    • 1.0099999904632568 in (3 SW PATAGONIA, AZ)
  • Wed, Jun 23, 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.