Hail, Story
- When
- June 12, 3:35 PM CST
- Where
- Story County, 3 mi E of Colo
- Measured
- 1 in hail
- Property damage
- $3,000
- Crop damage
- $10,000
- Coordinates
- 42.020, -93.270
Isolated thunderstorms formed over eastern Iowa. A cut off low pressure in the upper atmosphere was located to the east of the state.
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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.
Isolated thunderstorms formed over eastern Iowa. A cut off low pressure in the upper atmosphere was located to the east of the state. Strong heating during the day aided in the development of the isolated thunderstorms during the afternoon. Temperatures reached the middle 80s F. with dew point readings in the middle 60s, making for an unstable atmosphere. One cell became severe and dropped hail about the size of quarters est of Colo in Story County. The hail began as pea size hail about 15 minutes before the larger hail fell.
The Des Moines radar (KDMX), 49 km away, was scanning. The volume nearest the first event began at 21:34 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 1996Every state in 1996This day in weather historyWarnings in Iowa, June 1996
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: 5553457.