Storm reports for July 27, 2026

Numbers you can quote

On July 27, 2026, about 1.45 million homes were inside radar-estimated hail of 1 inch or larger across 54 counties; the most were in Cook County, IL (about 779,000).

• About 779,000 homes in Cook County, IL, were inside radar-estimated hail of 1 inch or larger on July 27, 2026. Swath image
• About 273,000 homes in DuPage County, IL, were inside radar-estimated hail of 1 inch or larger on July 27, 2026. Swath image
• About 114,000 homes in Will County, IL, were inside radar-estimated hail of 1 inch or larger on July 27, 2026. Swath image

7 more counties

• About 69,500 homes in Lake County, IL, were inside radar-estimated hail of 1 inch or larger on July 27, 2026. Swath image
• About 58,000 homes in Outagamie County, WI, were inside radar-estimated hail of 1 inch or larger on July 27, 2026. Swath image
• About 21,700 homes in Winnebago County, WI, were inside radar-estimated hail of 1 inch or larger on July 27, 2026. Swath image
• About 17,100 homes in Kenosha County, WI, were inside radar-estimated hail of 1 inch or larger on July 27, 2026. Swath image
• About 13,900 homes in Waukesha County, WI, were inside radar-estimated hail of 1 inch or larger on July 27, 2026. Swath image
• About 12,600 homes in Racine County, WI, were inside radar-estimated hail of 1 inch or larger on July 27, 2026. Swath image
• About 10,400 homes in Vilas County, WI, were inside radar-estimated hail of 1 inch or larger on July 27, 2026. 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 27, 2026.” https://nationalstorms.com/storms/2026-07-27/. 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 27 →

Major hail storm: Chicago, IL hail storm of July 27, 2026 →

On July 27, 2026, 59 hail, 217 damaging-wind and 11 tornado reports were logged across 24 states. The largest hail reported was 4.50″ (softball size) 2 miles NW of Gresham, WI. Radar estimated hail of 1 inch or larger over 5,109 square miles containing about 1.5 million 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 (59)

Damage, injuries and deaths

National Weather Service offices recorded about $111 million in property damage and 47 injuries from hail, thunderstorm wind and tornadoes across the US on this storm day (523 events in 23 states). Injuries and deaths are those the events caused directly.

What the National Weather Service wrote

• Winnebago County, WI (near Appleton) · Tornado EF3 · $88 million · 41 injuries
  “An NWS Damage Survey team confirmed a tornado that originated in Outagamie County around 11:56 AM CDT continued moving south, entering northeastern Winnebago County around 12:00 PM CDT.”
• Will County, IL (near Beecher) · Thunderstorm wind 69 mph · 2 injuries
  “A semi-truck trailer was blown over onto a vehicle on Dixie Highway, just north of Eagle Lake Road. The occupants of the vehicle, a 51-year-old male and a 48-year-old male, were both transported to a hospital with minor, non-life-threatening injuries.”
• Cook County, IL (near Glenwood) · Tornado EF1 · 2 injuries
  “A tornado with estimated peak winds of 110 mph touched down just south of Glenwood Lansing Road between Route 394 and Stoney Island Avenue. The tornado moved east causing tree damage and minor roof damage to a house and then turned to the northeast as it crossed Route 83.”
• Outagamie County, WI (near Appleton) · Tornado EF2 · $22 million · 1 injury
  “An NWS Damage Survey team confirmed a tornado touched down around 11:56 AM CDT in Appleton in urban southern Outagamie County. The tornado developed just north of Wisconsin Avenue, partially tearing the roof off houses and several businesses on Wisconsin Avenue consistent with EF0 damage and winds…”
• Cook County, IL (near Old Irving Park) · Thunderstorm wind 69 mph · 1 injury
  “A large tree fell on top of a school bus on the entrance ramp to Interstate 90/94, just west of the intersection of Belle Plaine Avenue and Keeler Avenue. The school bus driver was reported to be injured with no other information available. All of the children on the bus were reportedly uninjured.”
• Madison County, IN (near Gimco City) · Thunderstorm wind 60 mph · $80,000
  “Trees, power poles and power lines downed by thunderstorm wind gusts across the northern part of Madison County.”

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