Hail in Buena Vista County, Iowa

Hail May 15, 2026 · Buena Vista County, Iowa

1 in

Hail diameter

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

In addition to quarter sized hail, there were also some 1 to 2 inch diameter tree branches knocked down by gusty winds.

The wider storm

The right entrance region of a jet within stronger flow across the northern tier of the U.S. helped to increase convergence by late afternoon and early evening along a cold front working eastward through northwest Iowa. Mixed-layer instability reached up to 1500-2000 J/kg courtesy of 8C/km mid-level lapse rates with deep-layer shear of 40 to 50 knots. Initially discrete cells produced large hail, with a tendency to evolve toward more linear structures.

Began near Rembrandt (42.8400, -95.2100).

Source: NOAA Storm Events Database, event 1343062. Narratives are written by the National Weather Service forecast office that issued the report.

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