Storm reports for August 18, 2004

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, 2004, 35 hail, 53 damaging-wind and 0 tornado reports were logged across 16 states. The largest hail reported was 1.75″ (golf ball size) in Duval County, FL.

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 (35)

Damage, injuries and deaths

National Weather Service offices recorded about $254,000 in property damage and $28,000 in crop damage from hail, thunderstorm wind and tornadoes across the US on this storm day (90 events in 16 states). Injuries and deaths are those the events caused directly.

What the National Weather Service wrote

• Morrow County, OH (near Countywide) · Thunderstorm wind 58 mph · $50,000
  “Thunderstorm winds downed many trees across the southern half of Morrow County. Scattered power outages were also reported.”
• Knox County, OH (near Gambier) · Thunderstorm wind 58 mph · $40,000
  “Thunderstorm winds downed several trees and large limbs. Power outages were also reported in Gambier.”
• Monroe County, IN (near Bloomington) · Thunderstorm wind 58 mph · $30,000
  “Trees were downed in several locations across Bloomington, including one that crushed a car and another that fell on a barn. Damage amounts were estimated.”
• Marion County, OH (near New Bloomington) · Thunderstorm wind 58 mph · $25,000
  “Thunderstorm winds downed a large tree near New Bloomington. A truck struck the fallen tree resulting in serious injuries to the driver. A second tree was downed near Marion.”
• Seneca County, OH (near Mc Cutchenville) · Thunderstorm wind 58 mph · $15,000
  “Thunderstorm winds downed several large trees.”
• Henry County, IA (near Mt Pleasant) · Thunderstorm wind 60 mph · $10,000
  “Branches down over powerlines. Numerous trees down across the city with an AC unit blown out of a hotel wall.”

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