States › Nebraska › Lancaster County › Flood
Flood in Lancaster County, Nebraska
62 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.
Lancaster County, Nebraska, has 62 flood events in the NCEI record since 1950, with at least one in 22 different years.
May is the busiest month, with 22 of the recorded events. The last 20 years account for 50 events against 12 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 2.6% of the 2,363 flood events recorded in Nebraska; its 7.4 per 100 square miles compares with 3.1 statewide.
Compared with Nebraska
| Measure | Lancaster County | Nebraska | US |
|---|---|---|---|
| Flood events since 1950 | 62 | 2,363 | 183,559 |
| Per 100 square miles | 7.4 | 3.1 | 5.2 |
| Per 10,000 residents | 1.9 | 12.0 | 5.5 |
| Deaths recorded | 0 | 13 | 2,961 |
| Busiest month | May | June | June |
By year
Seasonality
0Feb
0Mar
0Apr
3May
22Jun
20Jul
7Aug
6Sep
3Oct
1Nov
0Dec
0
Recorded events
All 62 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 |
|---|---|---|---|---|---|---|---|
| 11 Jun 2026 | Flash Flood | — | — | — | — | — | County |
| 10 Aug 2025 | Flash Flood | — | — | — | — | — | County |
| 2 Jul 2024 | Flood | — | — | — | — | — | County |
| 1 Jul 2024 | Flash Flood | — | $100K | $25K | — | — | County |
| 7 Aug 2021 | Flash Flood | — | — | — | — | — | County |
| 7 Aug 2021 | Flash Flood | — | — | — | — | — | County |
| 29 Jul 2020 | Flash Flood | — | — | — | — | — | County |
| 29 Jul 2020 | Flash Flood | — | — | — | — | — | County |
| 29 Jul 2020 | Flash Flood | — | — | — | — | — | County |
| 29 Jul 2020 | Flash Flood | — | — | — | — | — | County |
| 18 Jun 2020 | Flood | — | — | — | — | — | County |
| 18 Jun 2020 | Flash Flood | — | — | — | — | — | County |
| 18 Jun 2020 | Flash Flood | — | — | — | — | — | County |
| 18 Jun 2020 | Flash Flood | — | — | — | — | — | County |
| 18 Jun 2020 | Flash Flood | — | — | — | — | — | County |
| 22 May 2020 | Flash Flood | — | — | — | — | — | County |
| 28 May 2019 | Flood | — | — | — | — | — | County |
| 28 May 2019 | Flash Flood | — | — | — | — | — | County |
| 4 Sep 2018 | Flash Flood | — | — | — | — | — | County |
| 4 Sep 2018 | Flash Flood | — | — | — | — | — | County |
| 30 Jun 2018 | Flood | — | — | — | — | — | County |
| 19 Jun 2018 | Flash Flood | — | — | — | — | — | County |
| 12 Jun 2017 | Flash Flood | — | $50K | $1K | — | — | County |
| 26 May 2016 | Flash Flood | — | — | — | — | — | County |
| 26 May 2016 | Flood | — | — | — | — | — | County |
| 9 May 2016 | Flash Flood | — | $1.5M | — | — | — | County |
| 4 Jun 2015 | Flash Flood | — | $20K | — | — | — | County |
| 7 May 2015 | Flash Flood | — | $50K | — | — | — | County |
| 6 May 2015 | Flood | — | $100M | $50K | — | — | County |
| 6 May 2015 | Flash Flood | — | $50K | — | — | — | County |
| 1 Oct 2014 | Flood | — | $100K | $200K | — | — | County |
| 30 Sep 2014 | Flash Flood | — | $50K | $10K | — | — | County |
| 4 Jun 2014 | Flood | — | $1K | — | — | — | County |
| 3 Jun 2014 | Flood | — | $50K | — | — | — | County |
| 12 May 2014 | Flash Flood | — | — | — | — | — | County |
| 12 May 2014 | Flood | — | $3K | — | — | — | County |
| 11 May 2014 | Flash Flood | — | — | — | — | — | County |
| 11 May 2014 | Flash Flood | — | — | — | — | — | County |
| 29 May 2013 | Flash Flood | — | — | — | — | — | County |
| 29 May 2013 | Flash Flood | — | — | — | — | — | County |
| 14 Apr 2012 | Flash Flood | — | — | — | — | — | County |
| 14 Apr 2012 | Flash Flood | — | — | — | — | — | County |
| 14 Apr 2012 | Flash Flood | — | — | — | — | — | County |
| 21 Jun 2010 | Flash Flood | — | $5K | — | — | — | County |
| 20 Jun 2010 | Flash Flood | — | $10K | — | — | — | County |
| 11 Jun 2008 | Flash Flood | — | — | — | — | — | County |
| 5 Jun 2008 | Flood | — | — | — | — | — | County |
| 4 Jun 2008 | Flash Flood | — | $1.2M | — | — | — | County |
| 6 May 2007 | Flash Flood | — | $10K | — | — | — | County |
| 5 May 2007 | Flash Flood | — | $500K | — | — | — | County |
| 12 Jun 2004 | Flash Flood | — | — | — | — | — | County |
| 23 May 2004 | Flood | — | — | — | — | — | Forecast zone |
| 22 May 2004 | Flash Flood | — | — | — | — | — | County |
| 9 Jun 2003 | Flash Flood | — | — | — | — | — | County |
| 28 Aug 2002 | Flash Flood | — | — | — | — | — | County |
| 23 Aug 2002 | Flash Flood | — | — | — | — | — | County |
| 5 Jul 1999 | Flash Flood | — | — | — | — | — | County |
| 27 Jun 1999 | Flash Flood | — | — | — | — | — | County |
| 15 May 1998 | Flash Flood | — | — | — | — | — | County |
| 14 Aug 1996 | Flash Flood | — | $60K | — | — | — | County |
| 8 May 1996 | Flash Flood | — | $1.5M | — | — | — | County |
| 8 May 1996 | Flash Flood | — | — | — | — | — | County |
Questions and answers
How many flood events has Lancaster County had?
62 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 Lancaster County?
11 Jun 2026 (Flash Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Lancaster County?
The flood of 6 May 2015, with property damage estimated by NCEI at $100M and crop damage at $50K.
How does Lancaster County compare with Nebraska for flood?
7.4 events per 100 square miles against 3.1 statewide; the county holds 62 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.