Storm reports for August 1, 2017

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

← Jul 31, 2017 All 2017 storm days · August 2017 Aug 2, 2017 →

Other storms on August 1 →

On August 1, 2017, 27 hail, 25 damaging-wind and 0 tornado reports were logged across 15 states. The largest hail reported was 1.75″ (golf ball size) in Le Sueur County, MN.

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 (27)

Damage, injuries and deaths

National Weather Service offices recorded about $260,000 in property damage from hail, thunderstorm wind and tornadoes across the US on this storm day (52 events in 15 states). Injuries and deaths are those the events caused directly.

What the National Weather Service wrote

• Alger County, MI (near Onola) · Thunderstorm wind 81 mph · $70,000
  “Over 100 12-24 inch diameter trees were snapped and uprooted five miles west-northwest of Au Train. Two trees were down on a house along Rock River Road. Power lines were also reported down.”
• Riverside County, CA (near Temecula) · Thunderstorm wind 60 mph · $50,000
  “A severe downburst struck Temecula and Murrieta, winds overturned a big rig, downed trees, and damaged traffic signals.”
• San Bernardino County, CA (near San Bernardino) · Thunderstorm wind 60 mph · $35,000
  “Severe winds downed a large tree (diameter > 2 ft) on a home in San Bernardino. A brief funnel cloud was also reported.”
• Riverside County, CA (near Perris) · Thunderstorm wind 64 mph · $25,000
  “Downburst winds toppled power lines and downed multiple large trees blocking several roadways in Perris.”
• Oldham County, KY (near Goshen) · Thunderstorm wind 63 mph · $25,000
  “A large tree was blown onto the roof of a home, exposing the attic.”
• San Diego County, CA (near Alpine) · Thunderstorm wind 64 mph · $15,000
  “Severe downburst winds knocked down branches that blocked roadways in Alpine and Harbison Canyon. A spotter estimated winds at 65 mph plus.”

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