Storm reports for September 7, 2013

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 September 7 →

On September 7, 2013, 25 hail, 40 damaging-wind and 1 tornado reports were logged across 8 states. The largest hail reported was 2.50″ (tennis ball size) in Harding County, SD.

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 (25)

Damage, injuries and deaths

National Weather Service offices recorded about $270,000 in property damage from hail, thunderstorm wind and tornadoes across the US on this storm day (66 events in 8 states). Injuries and deaths are those the events caused directly.

What the National Weather Service wrote

• Utah County, UT (near Provo Arpt) · Thunderstorm wind 59 mph · $100,000
  “Strong thunderstorm winds developed in Provo, with the Provo airport AWOS recording a peak wind gust of 59 mph. The most significant wind damage was a roof that was torn off of an apartment building. In addition, some smaller trees were knocked down, and hundreds of tree branches were downed.”
• Fremont County, WY (near (Riw)Riverton Rgnl A) · Thunderstorm wind 64 mph · $50,000
  “A 40x50 foot pole barn was ripped from its foundation and destroyed at a Missouri Valley ranch north of Riverton. Two nearby trees were toppled and blocked one lane of Paradise Valley Road.”
• Imperial County, CA (near Calexico) · Thunderstorm wind 75 mph · $30,000
  “Strong thunderstorms developed over the higher terrain of northwestern Mexico during the afternoon hours on September 7th, and they generated very strong and damaging outflow winds which spread north and into the community of Calexico.”
• Knox County, IL (near Galesburg) · Thunderstorm wind 60 mph · $30,000
  “Several large trees were snapped or uprooted in downtown Galesburg and in the Standish Park area. An industrial building lost part of its roof and a transformer pole was snapped when a large tree fell across a road. A large portion of Galesburg was without power due to the storm.”
• Harding County, SD (near Ralph) · Thunderstorm wind 70 mph · $20,000
  “The combination of hail and wind broke windows, destroyed a Quonset hut, and blew several 1700 pound hay bales off a stack.”
• Harding County, SD (near Ralph) · Thunderstorm wind 81 mph · $10,000
  “Strong winds blew 500 gallon tanks off their stands, destroyed a Quonset hut, and moved a mobile home off its foundation.”

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