Storm reports for September 21, 2010

IndependentNot affiliated with NOAA or the National Weather Service. Source: NOAA Storm Prediction Center storm reports. Data through November 6, 2026. Methodology

← Sep 20, 2010 All 2010 storm days · September 2010 Sep 22, 2010 →

Other storms on September 21 →

On September 21, 2010, 45 hail, 77 damaging-wind and 1 tornado reports were logged across 9 states. The largest hail reported was 1.75″ (golf ball size) in Linn County, IA.

Storm day runs 7 a.m. to 7 a.m. Eastern (12:00–12:00 UTC), the convention the Storm Prediction Center uses. Radar hail estimates start October 2019.

Storm reports by state

Cities with hail reported within 5 miles

Hail reports (45)

Damage, injuries and deaths

National Weather Service offices recorded about $2.8 million in property damage, $75,000 in crop damage and 2 injuries from hail, thunderstorm wind and tornadoes across the US on this storm day (123 events in 9 states). Injuries and deaths are those the events caused directly.

What the National Weather Service wrote

• Genesee County, MI (near Clio) · Thunderstorm wind 60 mph · 1 injury
  “A large tree was blown down which struck a man on a motorcyle.”
• Winnebago County, IL (near Loves Park) · Thunderstorm wind 58 mph · 1 injury
  “A man was struck and injured by a falling tree while exercising in his back yard.”
• Cook County, IL (near Dunhurst) · Thunderstorm wind 81 mph · $1 million
  “Roofs were blown off three industrial buildings on Glenn Avenue between Chaddick Drive and Shepard Avenue. Vehicle windows were smashed and some trees were completely snapped off.”
• Linn County, IA (near Marion) · Hail 1.75″ · $500,000
  “Golf ball-sized hail fell in Marion, IA at 125 pm CDT September 21. This report was relayed by KCRG.”
• Pinal County, AZ (near Stanfield) · Thunderstorm wind 92 mph · $300,000
  “A trained weather spotter reported significant wind damage to portions of Stanfield. Several mobile homes were rolled over or destroyed. One house lost it's roof. Additional damage was reported in the vicinity of Javelina and Conejo Avenue.”
• Woodford County, IL (near Roanoke) · Thunderstorm wind 70 mph · $170,000
  “Eight large 64,000 volt powerlines were blown down on the south edge of Roanoke, causing approximately $170,000 in damages. As a result, the entire town lost power from 3:30 PM to around 7 AM the next day.”

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