Storm reports for July 21, 2020

Numbers you can quote

On July 21, 2020, about 77,300 homes were inside radar-estimated hail of 1 inch or larger across 36 counties; the most were in Mecklenburg County, NC (about 16,700).

• About 16,700 homes in Mecklenburg County, NC, were inside radar-estimated hail of 1 inch or larger on July 21, 2020. 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 July 21, 2020.” https://nationalstorms.com/storms/2020-07-21/. 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 July 21 →

On July 21, 2020, 33 hail, 179 damaging-wind and 7 tornado reports were logged across 24 states. The largest hail reported was 2.50″ (tennis ball size) in Laramie County, WY. Radar estimated hail of 1 inch or larger over 1,472 square miles containing about 77,000 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 (33)

Damage, injuries and deaths

National Weather Service offices recorded about $1.8 million in property damage, $51,000 in crop damage and 2 injuries from hail, thunderstorm wind and tornadoes across the US on this storm day (219 events in 24 states). Injuries and deaths are those the events caused directly.

What the National Weather Service wrote

• Franklin County, PA (near Woodstock) · Thunderstorm wind 96 mph · $90,000 · 1 injury
  “A severe thunderstorm microburst produced straight line wind damage in Fayetteville, PA. Approximately 100 trees were downed by strong winds along a path approximately 700 yards long and 100 yards wide.”
• Franklin County, PA (near Scotland) · Thunderstorm wind 60 mph · $1,000 · 1 injury
  “A severe thunderstorm producing winds estimated near 60 mph knocked down a tree onto a golfer, who was injured, at the Chambersburg Country Club.”
• Sangamon County, IL (near Compro) · Tornado EF1 · $300,000
  “A tornado touched down 2.7 miles west-northwest of Auburn at 4:05 PM CDT. The tornado tracked northeastward, destroying 2 large sheds and 2 grain bins. It blew over an RV, damaged numerous trees, and caused minor roof damage to 2 houses and 2 large pole barns.”
• Union County, GA (near Choestoe) · Hail 1.75″ · $300,000
  “The public reported hail the size of golf balls at Lake Trahlyta.”
• Champaign County, IL (near Thomasboro) · Thunderstorm wind 60 mph · $175,000
  “Multiple structures were damaged on the southeast side of Thomasboro.”
• Charles County, MD (near Pomfret) · Thunderstorm wind 81 mph · $150,000
  “Hundreds of trees were blown down (some snapped) in the 7000 block of Bumpy Oak Road and along MD-227 Pomfret Road.”

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