Storm reports for August 20, 2012

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 20 →

On August 20, 2012, 12 hail, 30 damaging-wind and 0 tornado reports were logged across 5 states. The largest hail reported was 1.75″ (golf ball size) in Deaf Smith County, TX.

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 (12)

Damage, injuries and deaths

National Weather Service offices recorded about $171,000 in property damage and $100,000 in crop damage from hail, thunderstorm wind and tornadoes across the US on this storm day (42 events in 5 states). Injuries and deaths are those the events caused directly.

What the National Weather Service wrote

• Maricopa County, AZ (near Hightown) · Thunderstorm wind 81 mph · $40,000
  “Scattered thunderstorms developed across the greater Phoenix metropolitan area during the late afternoon hours on August 20th and they affected the community of Chandler. The storms generated strong and gusty microburst winds, with peak gusts estimated to be at least 70 knots.”
• Oldham County, TX (near Vega) · Thunderstorm wind 70 mph · $25,000
  “Thunderstorm wind gusts caused damage to the roof of a gas station and also overturned a tractor trailer. There were no reports of injuries or fatalities.”
• Castro County, TX (near Dimmitt) · Thunderstorm wind 90 mph · $20,000
  “An NWS storm survey in the community of Flagg confirmed significant downburst winds of around 90 mph from the east and northeast. These winds heavily damaged a large empty grain bin, shifted a nearby building that was bolted to concrete a few inches off its foundation, twisted pieces of metal on a…”
• Parmer County, TX (near Friona Benger Arpk) · Thunderstorm wind 87 mph · $20,000
  “A collapsing thunderstorm produced destructive downburst winds measured up to 88 mph by a Texas Tech University West Texas mesonet station northeast of Friona. Two quarter-mile long irrigation pivots located just east of the mesonet were flipped over.”
• Maricopa County, AZ (near Buckhorn) · Thunderstorm wind 75 mph · $20,000
  “Scattered thunderstorms developed over the greater Phoenix area during the afternoon and early evening hours on August 20th. Some of the thunderstorms generated both very heavy rain and strong, gusty and damaging microburst winds.”
• Randall County, TX (near Lake Tanglewood) · Thunderstorm wind 64 mph · $20,000
  “Thunderstorm wind gusts blew off the roof of a metal building near the Claude Highway (Farm to Market Road 1151) and Tanglewood Road. There were no injuries or fatalities.”

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