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Flood in Allen Parish, Louisiana
23 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 23 flood events in Allen Parish, Louisiana, between 1950 and 2026, spread over 13 years.
May is the busiest month, with 5 of the recorded events. The last 20 years account for 15 events against 8 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 0.7% of the 3,330 flood events recorded in Louisiana; its 3.0 per 100 square miles compares with 7.7 statewide.
Compared with Louisiana
| Measure | Allen Parish | Louisiana | US |
|---|---|---|---|
| Flood events since 1950 | 23 | 3,330 | 183,559 |
| Per 100 square miles | 3.0 | 7.7 | 5.2 |
| Per 10,000 residents | 10.1 | 7.2 | 5.5 |
| Deaths recorded | 0 | 39 | 2,961 |
| Busiest month | May | March | June |
By year
Seasonality
3Feb
0Mar
3Apr
2May
5Jun
2Jul
2Aug
1Sep
0Oct
2Nov
2Dec
1
Recorded events
All 23 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 |
|---|---|---|---|---|---|---|---|
| 7 Mar 2026 | Flash Flood | — | $2K | — | — | — | County |
| 7 May 2025 | Flash Flood | — | — | — | — | — | County |
| 6 May 2025 | Flash Flood | — | — | — | — | — | County |
| 9 Nov 2024 | Flash Flood | — | $100K | — | — | — | County |
| 16 May 2024 | Flash Flood | — | — | — | — | — | County |
| 13 May 2024 | Flash Flood | — | — | — | — | — | County |
| 24 Jan 2024 | Flash Flood | — | — | — | — | — | County |
| 30 Jul 2019 | Flash Flood | — | — | — | — | — | County |
| 14 Jul 2019 | Flash Flood | — | $500K | — | — | — | County |
| 6 Jun 2019 | Flash Flood | — | — | — | — | — | County |
| 30 Apr 2017 | Flash Flood | — | $250K | — | — | — | County |
| 20 Apr 2016 | Flash Flood | — | — | — | — | — | County |
| 11 Mar 2016 | Flood | — | $850K | — | — | — | County |
| 30 Aug 2014 | Flash Flood | — | — | — | — | — | County |
| 3 May 2009 | Flash Flood | — | — | — | — | — | County |
| 26 Oct 2006 | Flood | — | $3.0M | — | — | — | County |
| 16 Oct 2006 | Flash Flood | — | $3K | — | — | — | County |
| 3 Dec 2002 | Flash Flood | — | $10K | — | — | — | County |
| 5 Nov 2002 | Flash Flood | — | $25K | — | — | — | County |
| 12 Mar 1999 | Flash Flood | — | $10K | — | — | — | County |
| 12 Jan 1998 | Flash Flood | — | $100K | — | — | — | County |
| 6 Jan 1998 | Flash Flood | — | $20K | — | — | — | County |
| 7 Jun 1997 | Flood | — | — | — | — | — | County |
Questions and answers
How many flood events has Allen Parish had?
23 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 Allen Parish?
7 Mar 2026 (Flash Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Allen Parish?
The flood of 26 Oct 2006, with property damage estimated by NCEI at $3.0M.
How does Allen Parish compare with Louisiana for flood?
3.0 events per 100 square miles against 7.7 statewide; the county holds 23 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.