WASHINGTON COUNTY, Iowa (KCRG-TV9) - National Weather Service meteorologists surveyed damage from Wednesday’s storms and confirmed two EF1 tornadoes.
Storm damage near the Washington-Keokuk Counties line on Wednesday, May 17, 2017. (Courtesy: Kyle Sobaski)
The first tornado began in northeastern Jefferson County west of Pleasant Plain and ended in southwestern Washington County near Lake Darling. It was rated EF1 with estimated winds of 110 mph. It was on the ground for three and a quarter miles and was 25 yards wide. It damaged farm outbuildings and trees.
A second tornado occurred in northeastern Washington County. The tornado touched down northeast of Washington and lifted near the Iowa River southwest of Lone Tree. This tornado was rated EF1 with top winds estimated at 110 mph. It was on the ground for nearly six miles and was 40 yards wide. The tornado damaged numerous farm outbuildings, power lines, and trees.
In addition, a downburst occurred about five miles north of Washington. A downburst happens when winds rapidly come down from the thunderstorm and slam into the ground. Winds from that were estimated to be nearly 110 mph. That damaged a hog confinement building, power poles, and trees.