Flash Flooding and Hail in Iowa, June 13, 2000

The earlier round of thunderstorms had weakened and shifted east of the area. New thunderstorm development occurred quickly by late morning west of Waterloo and Marshalltown. The storms developed along and east-west frontal zone. Sufficient destabilization had occurred allowing CAPES to exceed 3000 J/Kg over much of the area. Other severe storms erupted over Southeast Iowa, Northeast Missouri and West Central Illinois as a Mesoscale Convectively induced Vorticity Maxima, from earlier thunderstorms in the plains, tracked eastward. Several reports of 60 to 70 mph winds, large hail and funnel clouds were received. The heavy rain, falling on saturated ground, led to urban and small stream flooding in a few areas. Severe winds forced many residents in Preston in Jackson County to take shelter. Tree limbs were scattered about, small trees uprooted, the Little League trailer overturned, and windows were broken from two businesses. Power lines were also knocked down. Severe winds also produced substantial damage in Durant in Cedar County. Damage included downed tree limbs, and roofs torn off a business and garage north of Main Street. Winds estimated at near 70 mph also caused damage in Olin in Jones County. Trees and power lines were knocked down, and several small structures were toppled, including a chimney on a home. Damage to a roof, sun porch and decorative fence was also reported along Maple and Trilby Streets. The Olin Community Park was forced to close because of downed trees and other damage. Trees were also toppled over in portions of Jefferson, Des Moines and Louisa Counties.