Storm reports for July 21, 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 July 21 →

On July 21, 2017, 79 hail, 153 damaging-wind and 6 tornado reports were logged across 20 states. The largest hail reported was 2.75″ (baseball size) in Wheeler County, NE.

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 (79)

Damage, injuries and deaths

National Weather Service offices recorded about $2.1 million in property damage, $127,000 in crop damage and 5 injuries from hail, thunderstorm wind and tornadoes across the US on this storm day (239 events in 20 states). Injuries and deaths are those the events caused directly.

What the National Weather Service wrote

• Delaware County, OH (near Troyton) · Thunderstorm wind 58 mph · $5,000 · 3 injuries
  “A camper trailer was overturned at Delaware State Park. A tree also fell onto a tent of campers.”
• Knox County, OH (near Pipesville) · Thunderstorm wind 58 mph · $75,000 · 1 injury
  “Thunderstorm winds downed a large tree on Grove Church Road east of Gambier. The tree landed on a house causing extensive damage and injuring an 83 year old woman inside. The woman was transported to a hospital for treatment.”
• Virginia Beach city, VA (near Virginia Beach) · Thunderstorm wind 58 mph · $5,000 · 1 injury
  “Wind gust pushed over at least 15 lifeguard stands, most with lifeguards in them. The main area of damage extended from 4th Street to 20th Street. The most serious injury was a mild concussion.”
• Cook County, IL (near Elk Grove Vlg) · Thunderstorm wind 90 mph · $1 million
  “Many trees were blown down with some snapped at their base. Based on radar and damage photos, it appears a microburst occurred with wind speeds estimated between 70 mph and 90 mph. A 48 multi unit building complex suffered significant wind damage.”
• Morton County, ND (near Mandan) · Hail 2.75″ · $250,000
  “Large hail fell over a broad swath of the city of Mandan, with the largest hail reported near the baseball field on 3rd Street SW.”
• Foster County, ND (near Juanita) · Thunderstorm wind 74 mph · $150,000
  “Measured wind gusts to 74 mph combined with quarter size hail to cause widespread damage in the Juanita area. One foot diameter trees were broken down. Wind driven hail caused damage to windows, vehicles, and siding. A grain truck was knocked over, and a door was torn off a quonset hut.”

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