Storm reports for July 31, 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 July 31 →

On July 31, 2004, 72 hail, 29 damaging-wind and 4 tornado reports were logged across 17 states. The largest hail reported was 1.75″ (golf ball size) in Minnehaha 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 (72)

Damage, injuries and deaths

National Weather Service offices recorded about $168,000 in property damage and $10,000 in crop damage from hail, thunderstorm wind and tornadoes across the US on this storm day (107 events in 17 states). Injuries and deaths are those the events caused directly.

What the National Weather Service wrote

• Turner County, SD (near Centerville) · Tornado F1 · $30,000
  “A tornado destroyed a garage. The tornado also damaged a storage shed and the shelter belt around a farmstead. Four people were briefly trapped in the basement of the house by garage debris, but there were no injuries.”
• Douglas County, CO (near Parker) · Thunderstorm wind 58 mph · $15,000
  “Strong thunderstorm winds downed a 65-ft blue spruce in Parker. The tree landed onto a home, damaging the roof of the residence. Dozens of holes poked into the shingles and gutters were damaged.”
• Nobles County, MN (near Adrian) · Tornado F1 · $2,000
  “A tornado damaged trees and destroyed outbuildings.”
• Pima County, AZ (near Tucson) · Thunderstorm wind 58 mph · $1,000
  “Strong thunderstorm winds caused the power lines at the 39th block of 16th Avenue to be downed.”
• O'Brien County, IA (near Sutherland) · Thunderstorm wind 70 mph
  “Thunderstorm winds caused extensive tree damage.”
• Holt County, NE (near Atkinson) · Thunderstorm wind 60 mph
  “Several large branches were broken off by the wind.”

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