Flash Flood, Harrison
- When
- June 21, 11:00 AM CST to 9:00 PM CST
- Where
- Harrison County, Logan
- Coordinates
- 41.683, -95.817 (the zone’s center; the record gives no point)
Flash Flood in Iowa, June 21, 1996
Extensive flooding was occurring around Logan and Missouri River Valley as a result of levees failures. Torrential rains fell upstream in Crawford and Sac Counties, traveling down the Boyer River.
Where it happened
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 1
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.
What happened
The episode as NWS OAX wrote it up.
Extensive flooding was occurring around Logan and Missouri River Valley as a result of levees failures. Torrential rains fell upstream in Crawford and Sac Counties, traveling down the Boyer River.
The radar
The Omaha radar (KOAX), 61 km away, was scanning. The volume nearest the first event began at 17:01 UTC.
Event by event
1 flash flood. Local standard time, as filed.
What these are
- Flash Flood
- Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornado in Michigan, June 21, 1996
- Flash Flood in Michigan, June 21 to 22, 1996
- Flood in Iowa, June 21 to 22, 1996
- Flash Flood in Iowa, June 21, 1996
- Flash Flood in Michigan, June 21 to 22, 1996
- Flash Flood in Michigan, June 21 to 22, 1996
- Damaging Wind in Kansas, June 21, 1996
- Tornado in Michigan, June 21, 1996
- Damaging Wind in Kansas, June 21, 1996
- Flash Flood in Michigan, June 21 to 22, 1996
- Flash Flood in Michigan, June 21 to 22, 1996
- Damaging Wind in Kansas, June 21, 1996
More
Every storm in Iowa in 1996Every state in 1996This day in weather historyWarnings in Iowa, June 1996
Sources
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: 5563944.