Tornado, Henry
- When
- June 12, 12:03 PM CST
- Where
- Henry County, 1 mi N of Mt Pleasant
- Rating
- F0
- Path length
- 0.1 mi
- Path width
- 10 yd
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.980, -91.550
A tornado touched down briefly causing no injuries or damage.
Tornado and Flash Flooding in Iowa, June 12, 1999
3 flash flood, 2 flood, 1 tornado, 1 funnel cloud, as filed by the National Weather Service.
Where it happened
Every event with a place to put it; 6 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
- 7
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 radar
The Quad Cities radar (KDVN), 107 km away, was scanning. The volume nearest the first event began at 18:02 UTC.
Event by event
3 flash flood, 2 flood, 1 tornado, 1 funnel cloud. Local standard time, as filed.
Funnel Cloud, Henry
- When
- June 12, 12:15 PM CST
- Where
- Henry County, Olds
- Reported by
- NEWSPAPER
- Coordinates
- 40.988, -91.544 (the zone’s center; the record gives no point)
Flood, Linn
- When
- June 12, 6:11 PM CST
- Where
- Linn County, Cedar Rapids
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 42.079, -91.599 (the zone’s center; the record gives no point)
Very heavy rains resulted in localized street flooding throughout the city.
Flood, Johnson
- When
- June 12, 7:30 PM CST
- Where
- Johnson County, North Liberty
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 41.672, -91.588 (the zone’s center; the record gives no point)
Thunderstorms dumped over 2 inches of rain resulting in localized flooding of city streets.
Flash Flood, Scott
- When
- June 12, 8:50 PM CST
- Where
- Scott County, 2 mi E of Parkview
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 41.637, -90.623 (the zone’s center; the record gives no point)
Lake Huntington rose 1.5 feet in less than 2 hours.
Flash Flood, Scott
- When
- June 12, 9:00 PM CST
- Where
- Scott County, Parkview
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 41.637, -90.623 (the zone’s center; the record gives no point)
Several roads flooded and impassable due to heavy rains of 2 to 3 inches.
Flash Flood, Scott
- When
- June 12, 9:06 PM CST
- Where
- Scott County, Davenport
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 41.637, -90.623 (the zone’s center; the record gives no point)
2 to 3 inches of rain fell in 2 hours. Water a foot deep covered the intersection of Locust street and Highway 280 closing it for a short while.
What these are
- Tornado
- A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.
- Funnel Cloud
- A rotating column of cloud extending from a thunderstorm that did not reach the ground.
- Flood
- Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
- 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 Hail in Michigan, June 12, 1999
- Damaging Winds in Texas, June 12, 1999
- Lightning Strike in Louisiana, June 12, 1999
- Flash Flood in Iowa, June 12, 1999
- Damaging Winds in Indiana, June 12, 1999
- Flash Flooding and Damaging Wind in Texas, June 12 to 13, 1999
- Hail and Damaging Winds in Michigan, June 12, 1999
- Hail and Damaging Winds in Ohio, June 12, 1999
- Lightning Strike in Florida, June 12, 1999
- Flash Flooding and Hail in Texas, June 12, 1999
- Hail and Damaging Winds in Ohio, June 12, 1999
- Hail in Colorado, June 12, 1999
More
Every storm in Iowa in 1999Every state in 1999This day in weather historyThe tornado archive for Iowa, 1999Warnings in Iowa, June 1999
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: 5716182, 5716183, 5716177, 5716178, 5716179, 5716181, 5716180.