EF0 tornado north of Webb damages homes as county spots storm

High winds, hail and a brief EF0 tornado north of Webb exposed how fast early-season severe weather can turn from threatening clouds into property damage across northwest Iowa. The storm left roof covering material, gutters, awnings and vinyl or metal siding damaged on one-or-two-family homes, while wind-driven hail and straight-line winds hit another residence south of the tornado path.

The tornado touched down at 7:49 p.m. in eastern Clay County north of Webb and lifted at 7:52 p.m., tracking east for about three minutes. The National Weather Service Sioux Falls office rated it EF0 with estimated winds up to 80 mph and said the tornado affected mostly farm fields, though one nearby residence sustained minor damage. A personal weather station on site recorded winds of 72 mph.

For Buena Vista County, the more important test was the response before the tornado formed. Buena Vista County Emergency Management Director Aimee Barritt said spotters from the Rembrandt Fire Department, Sioux Rapids Fire Department and Marathon Fire Department were out watching the storm cell as it moved through the area. Barritt said the cell showed a lot of rotation before the tornado developed, and she reported nothing for Buena Vista County, a sign that local monitoring was active even as the storm produced damage nearby.

That matters in a county where warning time and local communication can make the difference between minor repairs and costly losses. Buena Vista County Emergency Management is responsible for all-hazards planning, recovery, mitigation and strategic emergency-services planning, and it also coordinates countywide disaster exercises. Monday evening’s response showed why those functions matter in rural northwest Iowa, where storms can cover ground quickly and a short-lived tornado can still peel back roofing, break gutters and leave siding damaged before the warning is over.

The broader weather pattern was not isolated to Webb. The National Weather Service said the April 13 outbreak was the first severe-weather event of the season in its coverage area, with severe thunderstorms rapidly developing across northwest Iowa and most severe reports coming in as large hail. Two weak tornadoes were reported, one near Webb and another near Sanborn. Iowa’s tornado season typically peaks from April through June, and the state averages about 15 tornado days per year in the modern record, a reminder that spring in Buena Vista County demands more than casual attention when the sky turns dark.