Storm reports for August 20, 2014

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 20 →

On August 20, 2014, 49 hail, 174 damaging-wind and 3 tornado reports were logged across 21 states. The largest hail reported was 1.75″ (golf ball size) in Roane County, TN.

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 (49)

Damage, injuries and deaths

National Weather Service offices recorded about $1 million in property damage and $2,000 in crop damage from hail, thunderstorm wind and tornadoes across the US on this storm day (226 events in 21 states). Injuries and deaths are those the events caused directly.

What the National Weather Service wrote

• Hall County, NE (near Rosedale) · Thunderstorm wind 70 mph · $100,000
  “Wind gusts were estimated to be near 70 MPH. An irrigation pivot was overturned.”
• Pickens County, SC (near Clemson) · Thunderstorm wind 46 mph · $100,000
  “EM reported a tree was blown down on a house, causing significant structural damage.”
• Buffalo County, NE (near Kearney) · Thunderstorm wind 70 mph · $50,000
  “Wind gusts were estimated to be near 70 MPH. Trees branches were downed, a pole barn was damaged and a trailer was tipped over.”
• Loudon County, TN (near Philadelphia) · Thunderstorm wind 67 mph · $40,000
  “Law enforcement personnel reported multiple trees downed by thunderstorm wind in Philadelphia. At least barn was also damaged or destroyed.”
• Stark County, ND (near Lefor) · Thunderstorm wind 70 mph · $30,000
  “A shed was destroyed and trees were damaged.”
• Clay County, IL (near Clay City) · Thunderstorm wind 60 mph · $30,000
  “Numerous trees and tree branches were blown down in Clay City.”

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