Flood events in Black Hawk County, Iowa The flood events on record, by date and by year
This page is a county record of past events and claims. It does not show the flood zone or the risk of an address. For the flood map of an address, use FEMA's address search (opens in a new tab).
NCEI has 202 flood events on record for Black Hawk County, Iowa, from 1996 through 30 Jun 2026.
The newest flood event on record is on 11 Jul 2025.
From 2016 through 2025, NCEI has 72 flood events on record for the county.
The NWS collects event reports from a variety of sources, which include (but are not limited to): county, state, and federal emergency management officials, local law enforcement officials, SKYWARN spotters, NWS damage surveys, newspaper clipping services, the insurance industry, and the general public, among others.
The National Weather Service reports property and crop damage estimates using available data at the time of event reporting. These values should therefore be considered broad estimates. Damage amounts are not adjusted for inflation.
Zone (NWS Forecast Zone): A zone is a geographic area defined by the NWS for issuing forecasts, watches, and warnings. While zones often align with counties, they can also represent smaller or subdivided areas within a county to account for differences in weather conditions, such as elevation or proximity to water. Larger-scale events—such as heat, cold, drought, and winter storms—are typically recorded by zone.
The words of the agency. Source: NOAA NCEI, Storm Events Database, page "Frequently Asked Questions", copied on .
Date of the data: NCEI storm events through . Event types on this page: Flood, Flash Flood, Coastal Flood, Lakeshore Flood.
Newest flood events on record
Flood
3 miles ESE of GILBERTVILLE
Flash Flood
3 miles ESE of GILBERTVILLE
Flash Flood
The site does not show the place text of this record
Flood
1 mile NE of (ALO)WATERLOO MUNI A
Flood
6 miles N of BOIES
Flood
1 mile NE of (ALO)WATERLOO MUNI A
Flood
1 mile NE of (ALO)WATERLOO MUNI A
Flood
1 mile NE of (ALO)WATERLOO MUNI A
Flood
1 mile N of EVANSDALE
Flood
1 mile N of CEDAR FALLS JCT
Flood
1 mile WNW of CEDAR FALLS
Flood
1 mile SSE of DUNKERTON DAVIS ARPT
Flood
1 mile NE of (ALO)WATERLOO MUNI A
Flood
6 miles NE of BOIES
Flood
1 mile NE of (ALO)WATERLOO MUNI A
Flood
1 mile NE of (ALO)WATERLOO MUNI A
Flood
1 mile NE of (ALO)WATERLOO MUNI A
Flood
1 mile N of EVANSDALE
Flood
1 mile NE of (ALO)WATERLOO MUNI A
Flood
1 mile NE of (ALO)WATERLOO MUNI A
Flood
1 mile NE of (ALO)WATERLOO MUNI A
Flood
1 mile NE of (ALO)WATERLOO MUNI A
Flood
1 mile NE of (ALO)WATERLOO MUNI A. Damage estimate: $150 thousand
Flood
1 mile NE of (ALO)WATERLOO MUNI A. Damage estimate: $100 thousand
Flood
At FINCHFORD
A place is the text of the NCEI record: a distance and a direction from a reference place. The site does not show a place text that names a private property or reads as a person. NCEI gives no magnitude for this hazard.
Flood events by year
| Decade | Year that ends in 0 | Year that ends in 1 | Year that ends in 2 | Year that ends in 3 | Year that ends in 4 | Year that ends in 5 | Year that ends in 6 | Year that ends in 7 | Year that ends in 8 | Year that ends in 9 | All |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1950s | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1960s | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1970s | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1980s | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1990s | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 | 3 | 10 | 18 |
| 2000s | 6 | 4 | 0 | 0 | 3 | 3 | 1 | 11 | 30 | 8 | 66 |
| 2010s | 20 | 4 | 0 | 16 | 2 | 4 | 12 | 2 | 29 | 9 | 98 |
| 2020s | 5 | 3 | 0 | 0 | 10 | 2 | 0 (part of the year) | 20 |
A darker cell has a larger count. The number is in each cell.
Flood and flash flood events are on record from 1996. The year 2026 has the events through 30 Jun 2026 only.
By month, all years
- Jan1 event
- Feb6 events
- Mar19 events
- Apr27 events
- May33 events
- Jun48 events
- Jul24 events
- Aug12 events
- Sep16 events
- Oct12 events
- Nov2 events
- Dec2 events
Beside the other counties
| Measure | Black Hawk | All counties of Iowa | All counties of the United States |
|---|---|---|---|
| Flood events, 1996 to 2026 | 202 | 7,383 | 177,902 |
| Events for each 100 square miles | 35.7 | 13.2 | 5.0 |
| Events for each 10,000 residents | 15.5 | 23.1 | 5.4 |
The columns for the state and the United States total the counties. They count the events of each county in the same way as the county column. A forecast zone with another name than a county counts for the state only.
More flood events on record
| Date | Event type | Magnitude | Damage estimate | Deaths | Injuries | On record for |
|---|---|---|---|---|---|---|
| Flood | not recorded | none | 0 | 0 | County | |
| Flood | not recorded | none | 0 | 0 | County | |
| Flood | not recorded | none | 0 | 0 | County | |
| Flood | not recorded | $1.0 million | 0 | 0 | County | |
| Flood | not recorded | $50 thousand | 0 | 0 | County | |
| Flood | not recorded | $150 thousand | 0 | 0 | County | |
| Flood | not recorded | none | 0 | 0 | County | |
| Flood | not recorded | none | 0 | 0 | County | |
| Flood | not recorded | none | 0 | 0 | County | |
| Flood | not recorded | none | 0 | 0 | County | |
| Flood | not recorded | none | 0 | 0 | County | |
| Flood | not recorded | $150 thousand | 0 | 0 | County | |
| Flood | not recorded | $50 thousand | 0 | 0 | County | |
| Flood | not recorded | $100 thousand | 0 | 0 | County | |
| Flood | not recorded | $350 thousand | 0 | 0 | County | |
| Flood | not recorded | $100 thousand | 0 | 0 | County | |
| Flood | not recorded | $100 thousand | 0 | 0 | County | |
| Flash Flood | not recorded | none | 0 | 0 | County | |
| Flash Flood | not recorded | $10 thousand | 0 | 0 | County | |
| Flood | not recorded | $100 thousand | 0 | 0 | County | |
| Flood | not recorded | $750 thousand | 0 | 0 | County | |
| Flood | not recorded | $100 thousand | 0 | 0 | County | |
| Flash Flood | not recorded | none | 0 | 0 | County | |
| Flood | not recorded | $750 thousand | 0 | 0 | County | |
| Flash Flood | not recorded | $20 thousand | 0 | 0 | County | |
| Flood | not recorded | $25 thousand | 0 | 0 | County | |
| Flood | not recorded | $150 thousand | 0 | 0 | County | |
| Flood | not recorded | $150 thousand | 0 | 0 | County | |
| Flood | not recorded | $200 thousand | 0 | 0 | County | |
| Flood | not recorded | $200 thousand | 0 | 0 | County | |
| Flood | not recorded | $100 thousand | 0 | 0 | County | |
| Flood | not recorded | $100 thousand | 0 | 0 | County | |
| Flood | not recorded | none | 0 | 0 | County | |
| Flood | not recorded | none | 0 | 0 | County | |
| Flood | not recorded | $10 thousand | 0 | 0 | County | |
| Flood | not recorded | none | 0 | 0 | County | |
| Flood | not recorded | none | 0 | 0 | County | |
| Flood | not recorded | none | 0 | 0 | County | |
| Flood | not recorded | none | 0 | 0 | County | |
| Flood | not recorded | none | 0 | 0 | County | |
| Flood | not recorded | none | 0 | 0 | County | |
| Flood | not recorded | none | 0 | 0 | County | |
| Flood | not recorded | $300 thousand | 0 | 0 | County | |
| Flash Flood | not recorded | none | 0 | 0 | County | |
| Flood | not recorded | $20 thousand | 0 | 0 | County | |
| Flood | not recorded | $20 thousand | 0 | 0 | County | |
| Flood | not recorded | none | 0 | 0 | County | |
| Flood | not recorded | $50 thousand | 0 | 0 | County | |
| Flood | not recorded | $50 thousand | 0 | 0 | County | |
| Flood | not recorded | $25 thousand | 0 | 0 | County | |
| Flood | not recorded | $250 thousand | 0 | 0 | County | |
| Flash Flood | not recorded | $10 thousand | 0 | 0 | County | |
| Flash Flood | not recorded | $50 thousand | 0 | 0 | County | |
| Flash Flood | not recorded | $50 thousand | 0 | 0 | County | |
| Flash Flood | not recorded | $50 thousand | 0 | 0 | County | |
| Flood | not recorded | $500 thousand | 0 | 0 | County | |
| Flood | not recorded | $250 thousand | 0 | 0 | County | |
| Flood | not recorded | $250 thousand | 0 | 0 | County | |
| Flood | not recorded | $500 thousand | 0 | 0 | County | |
| Flood | not recorded | none | 0 | 0 | County | |
| Flood | not recorded | none | 0 | 0 | County | |
| Flood | not recorded | $200 thousand | 0 | 0 | County | |
| Flash Flood | not recorded | $200 thousand | 0 | 0 | County | |
| Flash Flood | not recorded | $75 thousand | 0 | 0 | County | |
| Flash Flood | not recorded | $250 thousand | 0 | 0 | County | |
| Flood | not recorded | $500 thousand | 0 | 0 | County | |
| Flood | not recorded | $250 thousand | 0 | 0 | County | |
| Flood | not recorded | $500 thousand | 0 | 0 | County | |
| Flood | not recorded | $250 thousand | 0 | 0 | County | |
| Flood | not recorded | none | 0 | 0 | County | |
| Flood | not recorded | $100 thousand | 0 | 0 | County | |
| Flood | not recorded | $75 thousand | 0 | 0 | County | |
| Flood | not recorded | $25 thousand | 0 | 0 | County | |
| Flood | not recorded | none | 0 | 0 | County | |
| Flash Flood | not recorded | $110 thousand | 0 | 0 | County | |
| Flood | not recorded | $60 thousand | 0 | 0 | County | |
| Flash Flood | not recorded | $100 thousand | 0 | 0 | County | |
| Flash Flood | not recorded | $100 thousand | 0 | 0 | County | |
| Flash Flood | not recorded | $50 thousand | 0 | 0 | County | |
| Flash Flood | not recorded | $100 thousand | 0 | 0 | County | |
| Flash Flood | not recorded | $200 thousand | 0 | 0 | County | |
| Flash Flood | not recorded | $500 thousand | 0 | 0 | County | |
| Flood | not recorded | $250 thousand | 0 | 0 | County | |
| Flood | not recorded | $100 thousand | 0 | 0 | County | |
| Flood | not recorded | $50 thousand | 0 | 0 | County | |
| Flood | not recorded | $600 thousand | 0 | 0 | County | |
| Flood | not recorded | $350 thousand | 0 | 0 | County | |
| Flash Flood | not recorded | $25 thousand | 0 | 0 | County | |
| Flash Flood | not recorded | $10 thousand | 0 | 0 | County | |
| Flood | not recorded | $20 million | 0 | 0 | County | |
| Flood | not recorded | $100 thousand | 0 | 0 | County | |
| Flood | not recorded | $100 thousand | 0 | 0 | County | |
| Flood | not recorded | $50 thousand | 0 | 0 | County | |
| Flood | not recorded | $10 thousand | 0 | 0 | County | |
| Flood | not recorded | $10 thousand | 0 | 0 | County | |
| Flash Flood | not recorded | $150 thousand | 0 | 0 | County | |
| Flood | not recorded | $2.3 million | 0 | 0 | County | |
| Flood | not recorded | $750 thousand | 0 | 0 | County | |
| Flood | not recorded | $1.5 million | 0 | 0 | County | |
| Flood | not recorded | $250 thousand | 0 | 0 | County | |
| Flood | not recorded | $200 thousand | 0 | 0 | County | |
| Flood | not recorded | $150 thousand | 0 | 0 | County | |
| Flood | not recorded | $100 thousand | 0 | 0 | County | |
| Flood | not recorded | $100 thousand | 0 | 0 | County | |
| Flood | not recorded | $100 thousand | 0 | 0 | County | |
| Flash Flood | not recorded | $110 thousand | 0 | 0 | County | |
| Flood | not recorded | $124 thousand | 0 | 0 | Forecast zone | |
| Flood | not recorded | $110 thousand | 0 | 0 | Forecast zone | |
| Flood | not recorded | $150 thousand | 0 | 0 | Forecast zone | |
| Flood | not recorded | $398 thousand | 0 | 0 | Forecast zone | |
| Flash Flood | not recorded | $75 thousand | 0 | 0 | County | |
| Flash Flood | not recorded | $250 thousand | 0 | 0 | County | |
| Flood | not recorded | $75 thousand | 0 | 0 | Forecast zone | |
| Flood | not recorded | $150 thousand | 0 | 0 | Forecast zone | |
| Flash Flood | not recorded | $500 thousand | 0 | 0 | County | |
| Flood | not recorded | $75 thousand | 0 | 0 | Forecast zone | |
| Flood | not recorded | $70 thousand | 0 | 0 | Forecast zone | |
| Flood | not recorded | $1.3 million | 0 | 0 | Forecast zone | |
| Flash Flood | not recorded | $1.3 million | 0 | 0 | County | |
| Flood | not recorded | $600 thousand | 0 | 0 | Forecast zone | |
| Flood | not recorded | $125 thousand | 0 | 0 | Forecast zone | |
| Flash Flood | not recorded | $175 thousand | 0 | 0 | County | |
| Flash Flood | not recorded | $150 thousand | 0 | 0 | County | |
| Flash Flood | not recorded | $1.2 million | 0 | 0 | County | |
| Flood | not recorded | $800 thousand | 0 | 0 | Forecast zone | |
| Flood | not recorded | $60 thousand | 0 | 0 | County | |
| Flood | not recorded | $80 thousand | 0 | 0 | County |
The site keeps 152 of the 202 events for this page. It keeps the newest 120 events. It also keeps 80 events with the most damage, injuries or deaths. A damage figure is an estimate in the NCEI record.
Official channels
- NCEI Storm Events Database (opens in a new tab)Search the full NCEI record by state, county and date.
- National Weather Service: Des Moines, IA (opens in a new tab)The forecast office that issues the weather warnings for the county.
- FEMA Flood Map Service Center: Search By Address (opens in a new tab)Search an address to see its flood map. This site has no flood-zone data.
These links open the pages of the agencies. The site checked the links on .
Cite this page
County Hazards. "Flood events on record for Black Hawk County, Iowa". https://countyhazards.com/county/ia/black-hawk/flood/. Data: NOAA NCEI Storm Events Database through 30 Jun 2026. Page made on .
Questions
- Which month has the most flood events on record for Black Hawk County?
- June has 48 of the 202 flood events on record from 1996 through 30 Jun 2026.
- How many flood events are on record for Iowa?
- NCEI has 7,383 flood events on record for Iowa from 1996 through 30 Jun 2026. That count has every forecast zone of the state.
- How does Black Hawk County compare with the other counties of Iowa?
- The counties of Iowa have 13.2 flood events for each 100 square miles. Black Hawk County has 35.7.
- Why are some flood events on record for a forecast zone?
- NCEI records some event types for a National Weather Service forecast zone and not for a county. This page counts a zone event when the zone has the name of the county.