Storm reports for August 18, 2017

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 18 →

On August 18, 2017, 55 hail, 60 damaging-wind and 8 tornado reports were logged across 12 states. The largest hail reported was 2.00″ (hen egg size) in Nobles County, MN.

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 (55)

Damage, injuries and deaths

National Weather Service offices recorded about $1 million in property damage and $415,000 in crop damage from hail, thunderstorm wind and tornadoes across the US on this storm day (123 events in 12 states). Injuries and deaths are those the events caused directly.

What the National Weather Service wrote

• Nobles County, MN (near Rushmore) · Tornado EF1 · $500,000
  “EF-1 tornado hit a hog confinement building before the storm crossed Interstate 90. 20 to 30 hogs were killed.”
• Osceola County, IA (near Cloverdale) · Tornado EF2 · $300,000
  “EF-2 tornado damaged three farm places. No one was home at any of the places impacted by the tornado. 20 to 30 head of cattle were missing after the storm.”
• Hardee County, FL (near Wauchula) · Thunderstorm wind 69 mph · $100,000
  “Hardee County Emergency Management relayed numerous reports of trees and power lines knocked down across Wauchula and Bowling Green from wind damage. The 911 call center received a total of 163 calls within a 3 hour window as a result of the storm.”
• Pulaski County, MO (near Devils Elbow) · Thunderstorm wind 60 mph · $20,000
  “A large tree fell on a small truck. Numerous trees and power lines were blown down southeast of St. Roberts.”
• Brevard County, FL (near Rockledge) · Tornado EF0 · $8,000
  “A tornado (landspout) developed along an outflow boundary ahead of a cluster of thunderstorms within a residential area of Rockledge. Minor damage began near the west end of Lakemoor Boulevard, and continued sporadically to near the intersection of Green Road and Fiske Boulevard, then ended just…”
• Susquehanna County, PA (near Herrick Center) · Thunderstorm wind 69 mph · $5,000
  “A thunderstorm moved across the region and became severe. This thunderstorm produced severe winds and produced structural damage to a house.”

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