Thunderstorm Wind in Jefferson County, Illinois
Thunderstorm Wind May 10, 2015 · Jefferson County, Illinois
Where the report was made, with tornadoes recorded within 15 miles over the years.
What the National Weather Service wrote
Numerous tree limbs and power lines were blown down, along with a couple of large trees. A large tree limb blew across two mobile homes, killing a 72-year-old man who was in the mobile home closest to the tree. The man died from blunt-force trauma caused by the tree limb, which was about 20 inches in diameter. His mobile home was destroyed. The second mobile home received only minor damage.
The wider storm
A squall line over eastern Missouri moved east across southern Illinois, producing locally strong winds. Southwesterly deep-layer wind shear around 30 knots was sufficient to maintain the squall line within a moderately unstable atmosphere. The squall line was associated with an upper-level low over South Dakota. A mid-level jet streak rotated northeast from the southern Plains into the Ozarks and Mid-Mississippi Valley.
Began near Mt Vernon (38.3200, -88.9000).
Source: NOAA Storm Events Database, event 569197. Narratives are written by the National Weather Service forecast office that issued the report.
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