Storm reports for May 13, 2023

Numbers you can quote

On May 13, 2023, about 84,000 homes were inside radar-estimated hail of 1 inch or larger across 9 counties; the most were in St. Louis County, MO (about 30,800).

• About 30,800 homes in St. Louis County, MO, were inside radar-estimated hail of 1 inch or larger on May 13, 2023. Swath image
• About 23,800 homes in Oklahoma County, OK, were inside radar-estimated hail of 1 inch or larger on May 13, 2023. Swath image
• About 21,200 homes in St. Charles County, MO, were inside radar-estimated hail of 1 inch or larger on May 13, 2023. Swath image

Homes are 2020 Census housing units in block groups whose center of population lay inside NOAA MRMS radar-estimated hail (MESH) of 1 inch or larger during the storm day (7 a.m. to 7 a.m. Eastern). These are radar estimates of hail size, not damage counts. More same-day numbers

Cite: National Storms. “Storm reports for May 13, 2023.” https://nationalstorms.com/storms/2023-05-13/. Data through November 6, 2026. License: CC BY 4.0.

IndependentNot affiliated with NOAA or the National Weather Service. Source: NOAA Storm Prediction Center storm reports; NOAA MRMS radar hail estimates (MESH) via the Iowa Environmental Mesonet; 2020 Census housing units. Data through November 6, 2026. Methodology

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Other storms on May 13 →

On May 13, 2023, 17 hail, 13 damaging-wind and 20 tornado reports were logged across 10 states. The largest hail reported was 3.00″ (teacup size) in St. Charles County, MO. Radar estimated hail of 1 inch or larger over 307 square miles containing about 84,000 homes.

Storm day runs 7 a.m. to 7 a.m. Eastern (12:00–12:00 UTC), the convention the Storm Prediction Center uses. Colored areas are NOAA MRMS radar estimates of the largest hail (MESH) over the day, lower 48 states only; radar overestimates and underestimates size, so read it with the ground reports.

Storm reports by state

Cities with the largest radar-estimated hail

Counties by homes inside 1″+ radar-estimated hail

Homes are 2020 Census housing units and people are 2020 Census residents, counted by block group where its center of population lies under radar-estimated hail of 1 inch or larger.

Hail reports (17)

Damage, injuries and deaths

National Weather Service offices recorded about $296,000 in property damage from hail, thunderstorm wind and tornadoes across the US on this storm day (52 events in 10 states). Injuries and deaths are those the events caused directly.

What the National Weather Service wrote

• Newton County, MO (near Boulder City) · Thunderstorm wind 60 mph · $250,000
  “Trees were uprooted, power lines downed and a carport was destroyed at the intersection of Aspen and Pepsin Roads. In addition a poultry barn suffered damage resulting in a significant number of dead poultry.”
• Pocahontas County, IA (near Blanden) · Tornado EF0 · $20,000
  “Tornado developed east of Pomeroy and moved north from Calhoun into Pocahontas county. Upon entering Pocahontas county, the tornado produced some damage to grain bins and an outbuilding. The remainder of the path was over open cropland.”
• Marion County, IA (near Flagler) · Tornado EF0 · $10,000
  “Another brief tornado which produced minor damage to an outbuilding and a hoop building. The tornado was captured on video by a storm chaser.”
• Oklahoma County, OK (near (Pwa)Wiley Post Apt) · Thunderstorm wind 64 mph · $5,000
  “A row of power poles were blown down near the intersection of Northwest Expressway and Rockwell Ave. Time is estimated via radar.”
• Ripley County, IN (near Benham) · Thunderstorm wind 58 mph · $5,000
  “A large tree was blown across a roadway. Several houses also had shingle damage.”
• Marion County, IA (near Donnelly) · Tornado EF0 · $2,000
  “A brief tornado occurred north of Highway 5 captured by many chasers. There was some tree damage produced by the tornado before dissipating.”

Event narratives from NWS Storm Data, shortened. Up to six per day, chosen by deaths, injuries, damage and size.

Source: NOAA National Centers for Environmental Information (NCEI), Storm Events Database, as entered by National Weather Service offices; data through July 31, 2026. Damage is in dollars of the year, not adjusted for inflation.

Guides: What radar-estimated hail (MESH) is and isn't · Storm reports: preliminary vs final