Hail, Clarke
- When
- May 16, 6:33 PM CST
- Where
- Clarke County, 2 mi S of Osceola
- Measured
- 1.75 in hail
- Property damage
- $10,000
- Coordinates
- 41.000, -93.780
A cold front moved southeast across the state during the late afternoon and evening hours. Temperatures ahead of the front were in the 80s to low 90s.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS DMX wrote it up.
A cold front moved southeast across the state during the late afternoon and evening hours. Temperatures ahead of the front were in the 80s to low 90s. The air mass became quite unstable ahead of the front with Lifted Indices around -6 C. The air was quite dry in the low levels, thus thunderstorms development was quite scattered with only isolated severe weather reported. Most of the storms that produced hail only produced pea to marble size hail. However isolated reports of dime size hail were received. Dime size hail accumulated to a depth of 2 inches near Murray in Clarke County. Trees were partly stripped by golf ball size hail south of Osceola, also in Clarke County.
The Des Moines radar (KDMX), 81 km away, was scanning. The volume nearest the first event began at 00:35 UTC.
1 hail. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Iowa in 1997Every state in 1997This day in weather historyWarnings in Iowa, May 1997
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5613751.