Storm reports for August 18, 2015

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, 2015, 32 hail, 80 damaging-wind and 9 tornado reports were logged across 14 states. The largest hail reported was 2.75″ (baseball size) in Union County, NM.

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 (32)

Damage, injuries and deaths

National Weather Service offices recorded about $746,000 in property damage and $8,000 in crop damage from hail, thunderstorm wind and tornadoes across the US on this storm day (123 events in 14 states). Injuries and deaths are those the events caused directly.

What the National Weather Service wrote

• Cayuga County, NY (near Meridian) · Thunderstorm wind 70 mph · $100,000
  “The county emergency manager reported damage at Crosslake Park.”
• Walworth County, WI (near Lake Geneva) · Tornado EF1 · $100,000
  “An EF1 tornado caused a sporadic path of damage. The most severe damage was significant roof damage to 4 buildings that were warehouse buildings and metal building systems. One of those buildings sustained a collapsed wall. There was minor damage to a mobile home and a barn.”
• St. Lawrence County, NY (near Potsdam) · Thunderstorm wind 63 mph · $50,000
  “A partial torn roof (40%), mainly metal shingles and some membrane was torn off a SUNY Potsdam housing apartment on Main street.”
• Wayne County, NY (near Lakeside) · Thunderstorm wind 58 mph · $50,000
  “Broadcast media reported a dozen trees downed by thunderstorm winds.”
• DuPage County, IL (near Downers Grove) · Tornado EF0 · $50,000
  “A brief EF-0 tornado touched down in DuPage county in Downers Grove. Maximum winds were estimated at 70 mph, with a path length of 0.25 miles and path width of 50-75 yards. A few hardwood trees snapped, one snapped a power pole and caused minor garage damage.”
• Woodford County, IL (near Goodfield) · Thunderstorm wind 60 mph · $45,000
  “A few trees were blown down along I-74 near mile marker 112 and damage was done to the roof of a barn/dinner theater near Goodfield.”

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