Flash Flood, Howard
- When
- July 9, 11:50 PM CST to July 10, 2:20 AM CST
- Where
- Howard County, Countywide
- Property damage
- $55,000
- Crop damage
- $40,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 43.357, -92.317 (the zone’s center; the record gives no point)
Flash Flooding in Iowa, July 9 to 10, 2000
In Decorah (Winnishiek County), city streets were covered by as much as a foot of water.
Where it happened
Every event with a place to put it; 3 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
- $120,000
- Crop damage
- $85,000
- Events
- 3
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 ARX wrote it up.
3 to 4 inches of rain within a couple of hours caused flash flooding, which washed out several county roads and damaged crops.In Decorah (Winnishiek County), city streets were covered by as much as a foot of water.
The radar
The national radar mosaic for the moment the first event began.
Event by event
3 flash flood. Local standard time, as filed.
Flash Flood, Winneshiek
- When
- July 10, 12:29 AM CST to 3:00 AM CST
- Where
- Winneshiek County, Decorah
- Property damage
- $30,000
- Crop damage
- $15,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 43.291, -91.844 (the zone’s center; the record gives no point)
Flash Flood, Allamakee
- When
- July 10, 1:00 AM CST to 3:00 AM CST
- Where
- Allamakee County, Countywide
- Property damage
- $35,000
- Crop damage
- $30,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 43.284, -91.378 (the zone’s center; the record gives no point)
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
- Flash Flooding and Damaging Winds in Iowa, July 9 to 10, 2000
- Damaging Winds in Iowa, July 9 to 10, 2000
- Hail and Damaging Wind in Nebraska, July 9, 2000
- Tornado in Iowa, July 9, 2000
- Hail and Damaging Winds in Montana, July 9, 2000
- Tornadoes and Flood in Indiana, July 9, 2000
- Tornadoes in Iowa, July 9, 2000
- Flash Flooding in Minnesota, July 9, 2000
- Damaging Wind in Louisiana, July 9, 2000
- Lightning Strike in Utah, July 9, 2000
- Flash Flooding and Hail in Montana, July 9, 2000
- Flash Flood and Hail in Washington, July 9, 2000
More
Every storm in Iowa in 2000Every state in 2000This day in weather historyWarnings in Iowa, July 2000
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: 5176155, 5176154, 5176156.