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Flood in Willacy County, Texas
41 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 41 flood events in Willacy County, Texas, between 1950 and 2026, spread over 17 years.
October is the busiest month, with 12 of the recorded events. The last 20 years account for 30 events against 11 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 0.3% of the 15,832 flood events recorded in Texas; its 6.9 per 100 square miles compares with 6.1 statewide.
Compared with Texas
| Measure | Willacy County | Texas | US |
|---|---|---|---|
| Flood events since 1950 | 41 | 15,832 | 183,559 |
| Per 100 square miles | 6.9 | 6.1 | 5.2 |
| Per 10,000 residents | 20.2 | 5.4 | 5.5 |
| Deaths recorded | 0 | 595 | 2,961 |
| Busiest month | October | May | June |
By year
Seasonality
0Feb
0Mar
4Apr
1May
3Jun
3Jul
9Aug
3Sep
4Oct
12Nov
2Dec
0
Recorded events
All 41 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 |
|---|---|---|---|---|---|---|---|
| 21 Apr 2025 | Flood | — | — | — | — | — | County |
| 27 Mar 2025 | Flash Flood | — | — | — | — | — | County |
| 27 Mar 2025 | Flood | — | — | — | — | — | County |
| 1 Oct 2021 | Flood | — | — | — | — | — | County |
| 6 Jul 2021 | Flash Flood | — | $10K | — | — | — | County |
| 1 Aug 2020 | Flood | — | — | — | — | — | County |
| 27 Jul 2020 | Flash Flood | — | — | — | — | — | County |
| 26 Jul 2020 | Flood | — | — | — | — | — | County |
| 25 Jul 2020 | Flash Flood | — | $6.0M | $36M | — | — | County |
| 25 Jun 2019 | Flood | — | — | — | — | — | County |
| 24 Jun 2019 | Flash Flood | — | $15M | $1.0M | — | — | County |
| 20 Jun 2018 | Flash Flood | — | $1.5M | — | — | — | County |
| 30 Oct 2015 | Flash Flood | — | $25K | — | — | — | County |
| 30 Oct 2015 | Flood | — | $25K | — | — | — | County |
| 25 Oct 2015 | Flood | — | $2.5M | — | — | — | County |
| 24 Oct 2015 | Flash Flood | — | $2.5M | — | — | — | County |
| 22 Oct 2015 | Flash Flood | — | $500K | — | — | — | County |
| 22 Nov 2013 | Flash Flood | — | $1K | — | — | — | County |
| 30 Mar 2012 | Flash Flood | — | $2.0M | — | — | — | County |
| 6 Sep 2010 | Flash Flood | — | — | $10K | — | — | County |
| 1 Aug 2010 | Flood | — | — | — | — | — | County |
| 13 Jul 2010 | Flood | — | $50K | $100K | — | — | County |
| 24 Jul 2008 | Flood | — | $14K | $50M | — | — | County |
| 23 Jul 2008 | Flash Flood | — | $14K | $50M | — | — | County |
| 20 Aug 2007 | Flash Flood | — | — | — | — | — | County |
| 4 Jul 2007 | Flash Flood | — | — | — | — | — | County |
| 3 Jul 2007 | Flash Flood | — | — | — | — | — | County |
| 25 May 2007 | Flash Flood | — | — | — | — | — | County |
| 25 May 2007 | Flash Flood | — | — | — | — | — | County |
| 24 May 2007 | Flash Flood | — | — | — | — | — | County |
| 13 Oct 2003 | Flood | — | $25K | — | — | — | Forecast zone |
| 19 Sep 2003 | Flood | — | $100K | — | — | — | Forecast zone |
| 2 Nov 2002 | Flash Flood | — | — | — | — | — | County |
| 20 Oct 2002 | Flood | — | — | — | — | — | County |
| 19 Sep 2002 | Flash Flood | — | — | — | — | — | County |
| 9 Sep 2001 | Flash Flood | — | — | — | — | — | County |
| 13 Oct 1998 | Flash Flood | — | — | — | — | — | County |
| 13 Oct 1997 | Flood | — | $1K | — | — | — | Forecast zone |
| 12 Mar 1997 | Flood | — | — | — | — | — | County |
| 5 Oct 1996 | Flash Flood | — | — | — | — | — | County |
| 5 Oct 1996 | Coastal Flood | — | — | — | — | — | Forecast zone |
Questions and answers
How many flood events has Willacy County had?
41 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 Willacy County?
21 Apr 2025 (Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Willacy County?
The flash flood of 23 Jul 2008, with property damage estimated by NCEI at $14K and crop damage at $50M.
How does Willacy County compare with Texas for flood?
6.9 events per 100 square miles against 6.1 statewide; the county holds 41 of the state's 15,832 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.