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Flood in Cass County, Nebraska
76 floods and flash floods events in the NCEI Storm Events record, 1950 to 2026. Event types counted: Flood, Flash Flood, Coastal Flood, Lakeshore Flood.
NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders. Storm records through 30 Jun 2026.
NCEI records 76 flood events in Cass County, Nebraska, between 1950 and 2026, spread over 21 years.
June is the busiest month, with 31 of the recorded events. The last 20 years account for 60 events against 16 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 3.2% of the 2,363 flood events recorded in Nebraska; its 13.6 per 100 square miles compares with 3.1 statewide.
Compared with Nebraska
| Measure | Cass County | Nebraska | US |
|---|---|---|---|
| Flood events since 1950 | 76 | 2,363 | 183,559 |
| Per 100 square miles | 13.6 | 3.1 | 5.2 |
| Per 10,000 residents | 28.1 | 12.0 | 5.5 |
| Deaths recorded | 0 | 13 | 2,961 |
| Busiest month | June | June | June |
By year
Seasonality
0Feb
3Mar
6Apr
5May
13Jun
31Jul
8Aug
3Sep
7Oct
0Nov
0Dec
0
Recorded events
All 76 events, most recent first. Magnitude is hail size, tornado rating or wind speed as recorded.
| Date | Event type | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|
| 5 Jun 2026 | Flash Flood | — | — | — | — | — | County |
| 2 Jul 2024 | Flash Flood | — | — | $5K | — | — | County |
| 2 Jul 2024 | Flash Flood | — | $50K | $10K | — | — | County |
| 1 Jul 2024 | Flood | — | — | — | — | — | County |
| 24 Jun 2024 | Flood | — | $75K | $5K | — | — | County |
| 24 Jun 2021 | Flash Flood | — | — | — | — | — | County |
| 24 Jun 2021 | Flash Flood | — | — | — | — | — | County |
| 29 Jul 2020 | Flash Flood | — | — | — | — | — | County |
| 29 Jul 2020 | Flash Flood | — | — | — | — | — | County |
| 15 Mar 2019 | Flood | — | — | — | — | — | County |
| 14 Mar 2019 | Flood | — | — | — | — | — | County |
| 14 Mar 2019 | Flood | — | — | — | — | — | County |
| 13 Mar 2019 | Flood | — | — | — | — | — | County |
| 13 Mar 2019 | Flood | — | $15M | — | — | — | County |
| 4 Sep 2018 | Flood | — | — | — | — | — | County |
| 4 Sep 2018 | Flood | — | — | — | — | — | County |
| 4 Sep 2018 | Flood | — | — | — | — | — | County |
| 11 Jun 2018 | Flash Flood | — | — | — | — | — | County |
| 26 May 2016 | Flash Flood | — | — | — | — | — | County |
| 26 May 2016 | Flood | — | — | — | — | — | County |
| 11 May 2016 | Flood | — | — | — | — | — | County |
| 1 May 2016 | Flood | — | — | — | — | — | County |
| 7 May 2015 | Flood | — | $30K | $30K | — | — | County |
| 18 Jun 2014 | Flood | — | $10K | — | — | — | County |
| 14 Apr 2012 | Flash Flood | — | — | — | — | — | County |
| 1 Sep 2011 | Flood | — | $50K | — | — | — | County |
| 1 Aug 2011 | Flood | — | $50K | — | — | — | County |
| 1 Jul 2011 | Flood | — | $50K | — | — | — | County |
| 1 Jun 2011 | Flood | — | $250K | — | — | — | County |
| 1 May 2011 | Flood | — | $10K | — | — | — | County |
| 21 Apr 2011 | Flood | — | $5K | — | — | — | County |
| 17 Feb 2011 | Flood | — | — | — | — | — | County |
| 2 Sep 2010 | Flash Flood | — | $10K | — | — | — | County |
| 2 Sep 2010 | Flood | — | $20K | — | — | — | County |
| 1 Sep 2010 | Flash Flood | — | — | — | — | — | County |
| 1 Aug 2010 | Flood | — | $5K | — | — | — | County |
| 1 Jul 2010 | Flood | — | $5K | — | — | — | County |
| 21 Jun 2010 | Flood | — | $5K | — | — | — | County |
| 21 Jun 2010 | Flood | — | $5K | — | — | — | County |
| 21 Jun 2010 | Flood | — | $500K | — | — | — | County |
| 20 Jun 2010 | Flash Flood | — | $40K | — | — | — | County |
| 11 Jun 2010 | Flood | — | $100K | — | — | — | County |
| 11 Jun 2010 | Flood | — | $100K | — | — | — | County |
| 17 Mar 2010 | Flood | — | $625K | — | — | — | County |
| 11 Jun 2008 | Flash Flood | — | — | — | — | — | County |
| 11 Jun 2008 | Flood | — | — | — | — | — | County |
| 11 Jun 2008 | Flash Flood | — | — | — | — | — | County |
| 9 Jun 2008 | Flood | — | — | — | — | — | County |
| 6 Jun 2008 | Flood | — | — | — | — | — | County |
| 5 Jun 2008 | Flood | — | — | — | — | — | County |
| 5 Jun 2008 | Flood | — | — | — | — | — | County |
| 4 Jun 2008 | Flash Flood | — | — | — | — | — | County |
| 1 Jun 2008 | Flood | — | — | — | — | — | County |
| 1 Jun 2008 | Flood | — | — | — | — | — | County |
| 30 May 2008 | Flood | — | — | — | — | — | County |
| 30 May 2008 | Flood | — | — | — | — | — | County |
| 6 May 2007 | Flood | — | — | — | — | — | County |
| 6 May 2007 | Flood | — | — | — | — | — | County |
| 6 May 2007 | Flood | — | $10K | — | — | — | County |
| 23 Feb 2007 | Flood | — | — | — | — | — | County |
| 27 Jun 2005 | Flash Flood | — | — | — | — | — | County |
| 22 Aug 2002 | Flash Flood | — | — | — | — | — | County |
| 23 Jun 2000 | Flash Flood | — | — | — | — | — | County |
| 30 Jun 1999 | Flood | — | — | — | — | — | Forecast zone |
| 30 Jun 1999 | Flash Flood | — | — | — | — | — | County |
| 27 Jun 1999 | Flood | — | $40K | — | — | — | Forecast zone |
| 21 Apr 1999 | Flood | — | — | — | — | — | Forecast zone |
| 21 Apr 1999 | Flash Flood | — | — | — | — | — | County |
| 14 Jun 1998 | Flash Flood | — | — | — | — | — | County |
| 13 Jun 1998 | Flash Flood | — | — | — | — | — | County |
| 23 Jul 1997 | Flash Flood | — | $12K | — | — | — | County |
| 1 Jun 1997 | Flood | — | — | — | — | — | Forecast zone |
| 1 May 1997 | Flood | — | — | — | — | — | Forecast zone |
| 2 Apr 1997 | Flood | — | — | — | — | — | Forecast zone |
| 18 Feb 1997 | Flood | — | — | — | — | — | Forecast zone |
| 23 May 1996 | Flash Flood | — | — | $55K | — | — | County |
Questions and answers
How many flood events has Cass County had?
76 events in the NCEI Storm Events record between 1950 and 2026. Reporting of floods and flash floods became far more complete after 1996, so early decades undercount.
When was the last recorded flood event in Cass County?
5 Jun 2026 (Flash Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Cass County?
The flood of 13 Mar 2019, with property damage estimated by NCEI at $15M.
How does Cass County compare with Nebraska for flood?
13.6 events per 100 square miles against 3.1 statewide; the county holds 76 of the state's 2,363 recorded events.
Provenance
NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026, public domain. County-recorded events plus zone-recorded events whose forecast zone is named for the county (marked "Forecast zone"). Population and area from the US Census Bureau (2021). Built 1 Oct 2026. See the methodology, the Flood hub and the county page.