Storm reports for July 31, 2001

IndependentNot affiliated with NOAA or the National Weather Service. Source: NOAA Storm Prediction Center storm reports. Data through November 6, 2026. Methodology

← Jul 30, 2001 All 2001 storm days · July 2001 Aug 1, 2001 →

Other storms on July 31 →

On July 31, 2001, 25 hail, 59 damaging-wind and 3 tornado reports were logged across 11 states. The largest hail reported was 1.50″ (ping pong ball size) in Bottineau County, ND.

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 (25)

Damage, injuries and deaths

National Weather Service offices recorded about $438,000 in property damage, $15,000 in crop damage and 9 injuries from hail, thunderstorm wind and tornadoes across the US on this storm day (87 events in 11 states). Injuries and deaths are those the events caused directly.

What the National Weather Service wrote

• Pima County, AZ (near Tucson) · Thunderstorm wind 58 mph · 9 injuries
  “At 1230 MST, pima county dispatch reported a 8 inch diamter tree blown down in a residental area. A spotter reported a measured wind gust of 58 mph at 1240 MST.”
• Lincoln County, NE (near Brady) · Thunderstorm wind 84 mph · $80,000
  “Strong winds to near 90 mph caused a Union Pacific train derailment on the Lincoln and Dawson county line. The derailment of 13 cars caused 200 feet of track to be destroyed with bedrock damaged on the north tracks. Large tree limbs were also down.”
• Lincoln County, NE (near North Platte) · Thunderstorm wind 84 mph · $60,000
  “Strong winds channeled under garage doors which were left open nearly a foot. The winds tore off the roof over the garage and master bedroom area and caused structural damage to the garage walls. The winds then exited through the soffits over the covered porch on backside of the house.”
• Lake of the Woods County, MN (near Pitt) · Thunderstorm wind · $50,000
  “Signs were blown down and pieces of a roof torn off.”
• St. Tammany Parish, LA (near Bush) · Thunderstorm wind · $50,000
  “A severe thunderstorm moved from northeast to southwest across the north portion of St. Tammany Parish. Large trees and power lines were blown down in several locations from near Bush through Covington and Folsom.”
• Brown County, NE (near Ainsworth) · Thunderstorm wind 70 mph · $15,000
  “Strong winds damaged a covered porch and downed several tree limbs.”

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