Storm reports for August 8, 2009

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

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Other storms on August 8 →

On August 8, 2009, 82 hail, 16 damaging-wind and 4 tornado reports were logged across 8 states. The largest hail reported was 4.25″ (grapefruit size) in Morgan County, CO.

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 (82)

Damage, injuries and deaths

National Weather Service offices recorded about $2 million in property damage, $150,000 in crop damage and 1 injury from hail, thunderstorm wind and tornadoes across the US on this storm day (102 events in 8 states). Injuries and deaths are those the events caused directly.

What the National Weather Service wrote

• Milwaukee County, WI (near State Fair Park) · Thunderstorm wind 45 mph · 1 injury
  “Wind gusts to around an estimated 39 knots (45 mph) affected the Wisconsin State Fair Park grounds in West Allis. One gust blew over scaffolding that holds up a banner over a ticket booth welcoming people to the fair. The toppled scaffolding injured a women who was treated at a hospital.”
• Hennepin County, MN (near Minnetrista) · Tornado EF1 · $1 million
  “A damage survey determined that an EF1 tornado touched down in the northeast side of Minnetrista, or on the west side of the intersection of County Road 110, and 151.”
• St. Croix County, WI (near Burkhardt) · Tornado EF1 · $500,000
  “A damage survey determined an EF-1 tornado touched down and tracked approximately six miles to two miles southeast of Boardman, Wisconsin. Numerous trees were snapped off or uprooted. Several garages and a boat were blown away.”
• Lapeer County, MI (near Imlay City) · Thunderstorm wind 64 mph · $100,000
  “Numerous trees and tree limbs were blown down, some of which brought down power lines and fell onto homes. Power lines were also reported being snapped.”
• Bon Homme County, SD (near Tyndall) · Hail 2.75″ · $100,000
  “Large hail smashed windows on vehicles and buildings, dented vehicles, damaged roofs, and damaged crops. The amount of crop damage was not known.”
• Aurora County, SD (near Aurora Center) · Hail 1.75″ · $100,000
  “Large hail dented vehicles, broke windows on vehicles and buildings, and damaged siding. The Aurora Center Reformed Church suffered considerable damage, resulting in the need to board the broken windows for Sunday service the next day. The hail also damaged crops, mainly corn.”

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