Flood, Humboldt
- When
- June 21, 3:00 PM CST to June 26, 12:00 PM CST
- Where
- Humboldt forecast zone
- Coordinates
- 42.777, -94.207 (the zone’s center; the record gives no point)
Flooding in Iowa, June 21 to 26, 1997
Weather conditions across Iowa were quite normal for the month of June. The first half of the month was quite dry, however a significant rain event took place during the night of the 20th and early morning of the 21 that resulted in some minor flooding.
Where it happened
Every event with a place to put it; 14 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
- $60,000
- Crop damage
- $100,000
- Events
- 14
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 DMX wrote it up.
Weather conditions across Iowa were quite normal for the month of June. The first half of the month was quite dry, however a significant rain event took place during the night of the 20th and early morning of the 21 that resulted in some minor flooding. The heaviest rainfall fell in the over the upper parts of the Iowa River Basin and over many tributaries to the Cedar River near Waterloo. Five to eight inches was recorded. This caused streams to rise three to five feet over flood stage, however site surveys indicated lives and property were not in danger. Damage was restricted to agricultural land in most areas.
The radar
The national radar mosaic for the moment the first event began.
Event by event
14 flood. Local standard time, as filed.
Flood, Wright
- When
- June 21, 3:00 PM CST to June 26, 12:00 PM CST
- Where
- Wright forecast zone
- Coordinates
- 42.733, -93.735 (the zone’s center; the record gives no point)
Flood, Franklin
- When
- June 21, 3:00 PM CST to June 26, 12:00 PM CST
- Where
- Franklin forecast zone
- Coordinates
- 42.733, -93.262 (the zone’s center; the record gives no point)
Flood, Butler
- When
- June 21, 3:00 PM CST to June 26, 12:00 PM CST
- Where
- Butler forecast zone
- Coordinates
- 42.732, -92.790 (the zone’s center; the record gives no point)
Flood, Bremer
- When
- June 21, 3:00 PM CST to June 26, 12:00 PM CST
- Where
- Bremer forecast zone
- Coordinates
- 42.775, -92.318 (the zone’s center; the record gives no point)
Flood, Webster
- When
- June 21, 3:00 PM CST to June 26, 12:00 PM CST
- Where
- Webster forecast zone
- Coordinates
- 42.428, -94.182 (the zone’s center; the record gives no point)
Flood, Hamilton
- When
- June 21, 3:00 PM CST to June 26, 12:00 PM CST
- Where
- Hamilton forecast zone
- Coordinates
- 42.384, -93.707 (the zone’s center; the record gives no point)
Flood, Hardin
- When
- June 21, 3:00 PM CST to June 26, 12:00 PM CST
- Where
- Hardin forecast zone
- Coordinates
- 42.384, -93.240 (the zone’s center; the record gives no point)
Flood, Grundy
- When
- June 21, 3:00 PM CST to June 26, 12:00 PM CST
- Where
- Grundy forecast zone
- Coordinates
- 42.402, -92.791 (the zone’s center; the record gives no point)
Flood, Black Hawk
- When
- June 21, 3:00 PM CST to June 26, 12:00 PM CST
- Where
- Black Hawk forecast zone
- Coordinates
- 42.470, -92.309 (the zone’s center; the record gives no point)
Flood, Story
- When
- June 21, 3:00 PM CST to June 26, 12:00 PM CST
- Where
- Story forecast zone
- Coordinates
- 42.036, -93.465 (the zone’s center; the record gives no point)
Flood, Marshall
- When
- June 21, 3:00 PM CST to June 26, 12:00 PM CST
- Where
- Marshall forecast zone
- Coordinates
- 42.036, -92.999 (the zone’s center; the record gives no point)
Flood, Jasper
- When
- June 21, 3:00 PM CST to June 26, 12:00 PM CST
- Where
- Jasper forecast zone
- Coordinates
- 41.686, -93.054 (the zone’s center; the record gives no point)
Flood, Mahaska
- When
- June 21, 3:00 PM CST to June 26, 12:00 PM CST
- Where
- Mahaska forecast zone
- Property damage
- $60,000
- Crop damage
- $100,000
- Coordinates
- 41.335, -92.641 (the zone’s center; the record gives no point)
What these are
- Flood
- Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Heat in Illinois, June 21 to 30, 1997
- Flash Flooding in Texas, June 21 to 22, 1997
- Heat in Pennsylvania, June 21 to 26, 1997
- Flash Flooding and Hail in Texas, June 21 to 23, 1997
- Flash Flood in Wisconsin, June 21, 1997
- Lightning Strike in Wisconsin, June 21, 1997
- Flash Flood in Wisconsin, June 21, 1997
- Flash Flood in Wisconsin, June 21, 1997
- Flooding in Texas, June 21 to 24, 1997
- Flash Flood in Wisconsin, June 21, 1997
- Dust Storm and Lightning Strike in Oregon, June 21 to 29, 1997
- Damaging Wind in Iowa, June 21, 1997
More
Every storm in Iowa in 1997Every state in 1997This day in weather historyWarnings in Iowa, June 1997
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: 5598893, 5598894, 5598895, 5598896, 5598897, 5598898, 5598899, 5598900, 5598901, 5599574, 5599575, 5599576, 5599577, 5599578.