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Flood in Union Parish, Louisiana
46 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.
Union Parish, Louisiana, has 46 flood events in the NCEI record since 1950, with at least one in 19 different years.
March is the busiest month, with 10 of the recorded events. The last 20 years account for 37 events against 9 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 1.4% of the 3,330 flood events recorded in Louisiana; its 5.2 per 100 square miles compares with 7.7 statewide.
Compared with Louisiana
| Measure | Union Parish | Louisiana | US |
|---|---|---|---|
| Flood events since 1950 | 46 | 3,330 | 183,559 |
| Per 100 square miles | 5.2 | 7.7 | 5.2 |
| Per 10,000 residents | 21.8 | 7.2 | 5.5 |
| Deaths recorded | 0 | 39 | 2,961 |
| Busiest month | March | March | June |
By year
Seasonality
2Feb
4Mar
10Apr
6May
1Jun
4Jul
3Aug
2Sep
3Oct
7Nov
1Dec
3
Recorded events
All 46 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 May 2023 | Flash Flood | — | — | — | — | — | County |
| 10 Oct 2020 | Flash Flood | — | — | — | — | — | County |
| 10 Feb 2020 | Flash Flood | — | — | — | — | — | County |
| 10 Feb 2020 | Flash Flood | — | — | — | — | — | County |
| 10 Feb 2020 | Flash Flood | — | — | — | — | — | County |
| 10 Feb 2020 | Flash Flood | — | — | — | — | — | County |
| 13 Apr 2019 | Flash Flood | — | — | — | — | — | County |
| 6 Apr 2019 | Flash Flood | — | — | — | — | — | County |
| 6 Apr 2019 | Flash Flood | — | — | — | — | — | County |
| 6 Apr 2019 | Flash Flood | — | — | — | — | — | County |
| 23 Jun 2017 | Flash Flood | — | — | — | — | — | County |
| 23 Jun 2017 | Flash Flood | — | — | — | — | — | County |
| 11 Apr 2016 | Flash Flood | — | — | — | — | — | County |
| 30 Mar 2016 | Flash Flood | — | — | — | — | — | County |
| 10 Mar 2016 | Flash Flood | — | — | — | — | — | County |
| 9 Mar 2016 | Flash Flood | — | — | — | — | — | County |
| 8 Mar 2016 | Flash Flood | — | — | — | — | — | County |
| 6 Apr 2014 | Flash Flood | — | — | — | — | — | County |
| 1 Jun 2013 | Flash Flood | — | — | — | — | — | County |
| 21 Mar 2012 | Flash Flood | — | — | — | — | — | County |
| 21 Mar 2012 | Flash Flood | — | — | — | — | — | County |
| 21 Mar 2012 | Flash Flood | — | — | — | — | — | County |
| 27 Jul 2010 | Flash Flood | — | — | — | — | — | County |
| 27 Jul 2010 | Flash Flood | — | — | — | — | — | County |
| 24 Dec 2009 | Flash Flood | — | $50K | — | — | — | County |
| 24 Dec 2009 | Flash Flood | — | — | — | — | — | County |
| 1 Nov 2009 | Flood | — | — | — | — | — | County |
| 30 Oct 2009 | Flood | — | $2.0M | — | — | — | County |
| 30 Oct 2009 | Flash Flood | — | $10K | — | — | — | County |
| 22 Oct 2009 | Flash Flood | — | $100K | — | — | — | County |
| 15 Oct 2009 | Flash Flood | — | — | — | — | — | County |
| 13 Oct 2009 | Flash Flood | — | — | — | — | — | County |
| 12 Oct 2009 | Flood | — | $2.0M | — | — | — | County |
| 17 Sep 2009 | Flash Flood | — | — | — | — | — | County |
| 2 Sep 2008 | Flash Flood | — | $150K | — | — | — | County |
| 11 Aug 2008 | Flash Flood | — | — | — | — | — | County |
| 9 Jul 2007 | Flash Flood | — | — | — | — | — | County |
| 17 Jun 2003 | Flash Flood | — | — | — | — | — | County |
| 24 Jan 2002 | Flash Flood | — | — | — | — | — | County |
| 12 Dec 2001 | Flash Flood | — | — | — | — | — | County |
| 1 Mar 2001 | Flash Flood | — | — | — | — | — | County |
| 29 Jan 1999 | Flash Flood | — | — | — | — | — | County |
| 12 Aug 1998 | Flash Flood | — | — | — | — | — | County |
| 2 Mar 1997 | Flash Flood | — | — | — | — | — | County |
| 2 Mar 1997 | Flood | — | $2.0M | — | — | — | Forecast zone |
| 27 Sep 1996 | Flash Flood | — | — | — | — | — | County |
Questions and answers
How many flood events has Union Parish had?
46 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 Union Parish?
11 May 2023 (Flash Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Union Parish?
The flood of 2 Mar 1997, with property damage estimated by NCEI at $2.0M.
How does Union Parish compare with Louisiana for flood?
5.2 events per 100 square miles against 7.7 statewide; the county holds 46 of the state's 3,330 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.