Storm reports for August 21, 2024

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 August 21 →

On August 21, 2024, 24 hail, 26 damaging-wind and 2 tornado reports were logged across 9 states. The largest hail reported was 2.50″ (tennis ball size) in Jones County, SD. Radar estimated hail of 1 inch or larger over 2,941 square miles containing about 4,400 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 (24)

Damage, injuries and deaths

National Weather Service offices recorded about $3.1 million in property damage from hail, thunderstorm wind and tornadoes across the US on this storm day (52 events in 9 states). Injuries and deaths are those the events caused directly.

What the National Weather Service wrote

• San Juan County, NM (near (Fmn)Farmington Airport) · Thunderstorm wind 66 mph · $3 million
  “The Farmington Four Corners Regional Airport observed thunderstorm wind gusts peaking at 66 mph. These thunderstorm wind gusts produced thick blowing dust, power outages to 8,000 customers, and a down 69kV power line resulting in power outages around Aztec and surrounding areas.”
• Cochise County, AZ (near Willcox) · Hail 1.50″ · $100,000
  “Video on social media showing accumulating hail with largest hail 1.5 inch in diameter. Video also showed damage to car windshield and dents in hood and roof of car.”
• Miami-Dade County, FL (near Homestead Gen Avn Ar) · Thunderstorm wind 87 mph
  “A passing thunderstorm, with strong microburst wind gusts, cause localized damage at the Homestead General Airport. Numerous small airplanes flipped, as well as bent fencing and light posts. Miami Skydive located at the airport reported 87 mph gusts were measured, at approximately 1:30 pm.”
• Dawson County, MT (near Hoyt) · Thunderstorm wind 67 mph
  “The BLM Glendive mesonet station (MTM28) measured a 67 mph thunderstorm wind gust.”
• San Bernardino County, CA (near (Eed)Needles Arpt) · Thunderstorm wind 66 mph
  “A second storm followed immediately behind the first one and produced even higher winds.”
• Scotts Bluff County, NE (near Gering) · Thunderstorm wind 62 mph
  “RAWS site Scottsbluff measured downburst winds west of Gering.”

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