Storm reports for May 20, 2007

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 May 20 →

On May 20, 2007, 28 hail, 5 damaging-wind and 1 tornado reports were logged across 7 states. The largest hail reported was 2.00″ (hen egg size) in Dawson County, MT.

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 (28)

Damage, injuries and deaths

National Weather Service offices recorded about $77,000 in property damage from hail, thunderstorm wind and tornadoes across the US on this storm day (34 events in 7 states). Injuries and deaths are those the events caused directly.

What the National Weather Service wrote

• Dawson County, MT (near Bloomfield) · Hail 2.00″ · $62,000
  “Hail ranged from quarter size to two inches. Southwest side of home received window and vinyl siding damage. Double paned windows shattered on living room floor. Trees on property shredded from hail.”
• Jeff Davis County, TX (near Ft Davis) · Thunderstorm wind 71 mph
  “A 71 mph gust was measured by a trained spotter. No damage was reported.”
• Jeff Davis County, TX (near Ft Davis) · Thunderstorm wind 62 mph
  “A 62 mph wind gust was reported by the media at McDonald Observatory. No damage was reported.”
• Cheyenne County, NE (near (Sny)Sidney Arpt) · Thunderstorm wind 58 mph
  “Measured wind gust at the Sidney airport with a report of a semi truck blown over on Interstate 80 near Sidney, Nebraska.”
• Campbell County, WY (near Gillette) · Tornado EF1
  “The tornado hit a methane gas well, which started to leak. It also broke a large tree about two feet off the ground, lifted and tossed livestock feeders, and ripped the roof of a well house. Path length and width were estimated.”
• Richland County, MT (near Sidney) · Hail 1.75″
  “A few golf ball size stones with plenty of dime and nickel size hail.”

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