Storm reports for September 21, 2025

Numbers you can quote

On September 21, 2025, about 86,000 homes were inside radar-estimated hail of 1 inch or larger across 20 counties; the most were in Denton County, TX (about 16,800).

• About 16,800 homes in Denton County, TX, were inside radar-estimated hail of 1 inch or larger on September 21, 2025. Swath image
• About 14,800 homes in Hennepin County, MN, were inside radar-estimated hail of 1 inch or larger on September 21, 2025. Swath image
• About 11,800 homes in Grayson County, TX, were inside radar-estimated hail of 1 inch or larger on September 21, 2025. 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 September 21, 2025.” https://nationalstorms.com/storms/2025-09-21/. 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

← Sep 20, 2025 All 2025 storm days · September 2025 Sep 22, 2025 →

Other storms on September 21 →

On September 21, 2025, 69 hail, 44 damaging-wind and 0 tornado reports were logged across 14 states. The largest hail reported was 2.50″ (tennis ball size) in Grayson County, TX. Radar estimated hail of 1 inch or larger over 952 square miles containing about 86,000 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 (69)

Damage, injuries and deaths

National Weather Service offices recorded about $779,000 in property damage from hail, thunderstorm wind and tornadoes across the US on this storm day (113 events in 14 states). Injuries and deaths are those the events caused directly.

What the National Weather Service wrote

• Denton County, TX (near Sanger) · Thunderstorm wind 85 mph · $250,000
  “Thunderstorm winds tore a 45-50 foot hole in the roof of the Walmart Distribution Center north of Sanger, and another warehouse had one of the outside walls partially collapsed.”
• Denton County, TX (near Sanger) · Thunderstorm wind 85 mph · $100,000
  “Five campers were overturned as the Sanger KOA near I-35 and View Rd. One person in a camper died later but it was determined to be from a health issue and not from injuries sustained in the storm.”
• Grayson County, TX (near Luella) · Hail 2.50″ · $100,000
  “A trained spotter measured tennis ball sized hail in Luella.”
• Grayson County, TX (near Howe) · Hail 2.50″ · $50,000
  “Large hail 2.25-2.5 inches in size fell for 8-10 minutes about 3 miles southeast of Howe. Windows were broken and roof damage was observed. The weather station at this location also measured 62 mph winds with large tree branches broken.”
• Comanche County, TX (near Proctor) · Thunderstorm wind 78 mph · $30,000
  “A mobile home lost its roof and outbuildings were knocked down on CR 347, located southeast of Proctor.”
• Cooke County, TX (near Lois) · Hail 2.00″ · $25,000
  “A public report indicated 2 inch diameter hail near Interstate 35 midway between Valley View and Sanger.”

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