Storm reports for May 9, 2011

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 May 9 →

On May 9, 2011, 51 hail, 11 damaging-wind and 5 tornado reports were logged across 11 states. The largest hail reported was 2.75″ (baseball size) in Dawes County, NE.

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 (51)

Damage, injuries and deaths

National Weather Service offices recorded about $90,000 in property damage from hail, thunderstorm wind and tornadoes across the US on this storm day (67 events in 11 states). Injuries and deaths are those the events caused directly.

What the National Weather Service wrote

• Pennington County, SD (near Creighton) · Tornado EF0 · $50,000
  “A large electric transmission tower was crumpled, seven wooden power poles were snapped, and trees were snapped.”
• Lexington County, SC (near Chapin) · Thunderstorm wind 63 mph · $8,000
  “Public reported trees and powerlines down at Chapin Elementary School.”
• Tulare County, CA (near Exeter) · Thunderstorm wind 52 mph · $5,000
  “A trained weather spotter reported trees downed from thunderstorm winds and blowing dust. Winds estimated up to 50 mph.”
• Haakon County, SD (near Philip) · Tornado EF1 · $5,000
  “A tornado caused minor damage to a ranch north of Philip. Plywood and metal roofing was torn off the house. A metal shed had a collapsed wall and some roof panels torn off. A large grain bin was dented by flying debris.”
• Haakon County, SD (near (Php)Philip Arpt) · Tornado EF0 · $5,000
  “A small tornado briefly touched down near Ottumwa but caused no damage.”
• Sargent County, ND (near Brampton) · Thunderstorm wind 63 mph
  “A basketball hoop set was blown down along with several large tree branches. A trampoline was blown onto a tractor nearly a hundred feet away.”

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