Storm reports for July 18, 2007

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 July 18 →

On July 18, 2007, 74 hail, 205 damaging-wind and 4 tornado reports were logged across 21 states. The largest hail reported was 2.75″ (baseball size) in Pennington 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 (74)

Damage, injuries and deaths

National Weather Service offices recorded about $2.5 million in property damage, $278,000 in crop damage and 1 injury from hail, thunderstorm wind and tornadoes across the US on this storm day (283 events in 21 states). Injuries and deaths are those the events caused directly.

What the National Weather Service wrote

• Jo Daviess County, IL (near Warren) · Thunderstorm wind 70 mph · $25,000 · 1 injury
  “Winds estimated to be 70 mph blew down trees and power lines. Several trees fell onto some houses. One person was transported to a hospital with a minor injury and later released. Power and phone service was knocked out to about half of the town.”
• Pennington County, SD (near Hill City) · Hail 2.75″ · $500,000
  “Baseball sized hail broke building windows and automobile windshields in Hill City. The hail accumulated six to eight inches deep.”
• Flathead County, MT (near Lakeside) · Thunderstorm wind 90 mph · $300,000
  “Numerous trees and power poles were blown down along the northern shores of Flathead lake. The roof to Carpenter's Arena near Kalispell was blown off. Damage to two other roofs was observed. One small grain silo was blown over near Somers.”
• Brown County, WI (near Green Bay) · Thunderstorm wind 81 mph · $237,000
  “High winds from thunderstorms downed numerous trees on the northeast side of Green Bay. Some of the trees landed on roofs in the 1800 block of East Shore Drive, damaging at least 6 houses.”
• Pima County, AZ (near Oro Vly) · Thunderstorm wind 81 mph · $150,000
  “Approximately 100 trees were uprooted and knocked down at Oro Valley Country Club on Greenock Road due to a wet microburst. An additional 30 trees were uprooted at a nearby shopping plaza at Oracle Road and 1st Avenue. The uprooted trees caused roof damage to several houses.”
• Isabella County, MI (near Weidman Arpt) · Thunderstorm wind 70 mph · $100,000
  “Severe thunderstorm wind gusts blew down multiple trees at the Pines golf course in Lake Isabella. Numerous trees were blown down in addition to the roof off of a home four miles southwest of Weidman.”

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