States › North Dakota › Walsh County › Flood
Flood in Walsh County, North Dakota
43 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 43 flood events in Walsh County, North Dakota, between 1950 and 2026, spread over 18 years.
April is the busiest month, with 12 of the recorded events. The last 20 years account for 27 events against 16 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 3.5% of the 1,221 flood events recorded in North Dakota; its 3.4 per 100 square miles compares with 1.8 statewide.
NCEI attributes 1 death in the county to floods and flash floods.
Compared with North Dakota
| Measure | Walsh County | North Dakota | US |
|---|---|---|---|
| Flood events since 1950 | 43 | 1,221 | 183,559 |
| Per 100 square miles | 3.4 | 1.8 | 5.2 |
| Per 10,000 residents | 41.1 | 15.8 | 5.5 |
| Deaths recorded | 1 | 16 | 2,961 |
| Busiest month | April | June | June |
By year
Seasonality
0Feb
0Mar
3Apr
12May
8Jun
10Jul
6Aug
4Sep
0Oct
0Nov
0Dec
0
Recorded events
All 43 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 |
|---|---|---|---|---|---|---|---|
| 1 May 2023 | Flood | — | — | — | — | — | County |
| 18 Apr 2023 | Flood | — | $1.0M | — | — | — | County |
| 16 Apr 2023 | Flood | — | $1.0M | — | — | — | County |
| 4 Jul 2020 | Flash Flood | — | $50K | $250K | — | — | County |
| 18 Apr 2019 | Flood | — | $50K | — | — | — | County |
| 17 Jun 2016 | Flash Flood | — | $10K | $50K | — | — | County |
| 5 Jul 2015 | Flood | — | — | $15K | — | — | County |
| 9 Apr 2014 | Flood | — | $10K | — | — | — | County |
| 1 Jun 2013 | Flood | — | $20K | — | — | — | County |
| 1 Jun 2013 | Flood | — | $15K | — | — | — | County |
| 31 May 2013 | Flood | — | $20K | — | — | — | County |
| 20 May 2013 | Flood | — | $100K | $250K | — | — | County |
| 1 May 2013 | Flood | — | $5K | — | — | — | County |
| 30 Apr 2013 | Flood | — | $5K | — | — | — | County |
| 30 Apr 2013 | Flood | — | $5K | — | — | — | County |
| 27 Apr 2013 | Flood | — | $20K | — | 1 | — | County |
| 1 May 2011 | Flood | — | — | — | — | — | County |
| 8 Apr 2011 | Flood | — | — | — | — | — | County |
| 24 May 2010 | Flash Flood | — | $1K | $5K | — | — | County |
| 1 Apr 2010 | Flood | — | — | — | — | — | County |
| 18 Mar 2010 | Flood | — | — | — | — | — | County |
| 27 Jun 2009 | Flash Flood | — | $40K | $100K | — | — | County |
| 27 Jun 2009 | Flood | — | — | — | — | — | County |
| 1 May 2009 | Flood | — | $5K | — | — | — | County |
| 1 Apr 2009 | Flood | — | $5K | — | — | — | County |
| 22 Mar 2009 | Flood | — | $5K | — | — | — | County |
| 26 Jun 2007 | Flash Flood | — | — | — | — | — | County |
| 1 Apr 2006 | Flood | — | $975K | — | — | — | County |
| 31 Mar 2006 | Flood | — | — | — | — | — | County |
| 17 Aug 2005 | Flash Flood | — | — | — | — | — | County |
| 11 Jul 2005 | Flash Flood | — | — | — | — | — | County |
| 27 Aug 2002 | Flash Flood | — | — | — | — | — | County |
| 27 Aug 2002 | Flash Flood | — | — | — | — | — | County |
| 27 Aug 2002 | Flash Flood | — | $50K | — | — | — | County |
| 31 Jul 2002 | Flash Flood | — | — | — | — | — | County |
| 31 Jul 2002 | Flash Flood | — | — | — | — | — | County |
| 22 Jun 2002 | Flash Flood | — | — | — | — | — | County |
| 22 Jun 2002 | Flash Flood | — | — | — | — | — | County |
| 15 Jun 2000 | Flash Flood | — | — | — | — | — | County |
| 12 Jun 2000 | Flood | — | — | — | — | — | County |
| 2 Apr 1999 | Flood | — | — | — | — | — | Forecast zone |
| 2 Jul 1997 | Flash Flood | — | — | — | — | — | County |
| 17 May 1996 | Flash Flood | — | — | — | — | — | County |
Questions and answers
How many flood events has Walsh County had?
43 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 Walsh County?
1 May 2023 (Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Walsh County?
The flood of 18 Apr 2023, with property damage estimated by NCEI at $1.0M.
How does Walsh County compare with North Dakota for flood?
3.4 events per 100 square miles against 1.8 statewide; the county holds 43 of the state's 1,221 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.