San Augustine County, Texas

What hazards hit San Augustine County most?

The most frequent records are severe thunderstorm wind events: 95 since 1959. The rank column places the county among Texas's counties by days with a record per 1,000 square miles of land over each hazard's complete period.

Source: NOAA NCEI Storm Events Database (county and forecast-zone records attributed to the county; a zone record shows its own totals on each county it covers). Days: dates with at least one record of the hazard in the county. Ranks: days with a record per 1,000 square miles of land (Census Bureau 2024 Gazetteer), since 1950 for tornadoes, 1955 for hail and thunderstorm wind, 1996 for the rest.

How many tornadoes has San Augustine County had?

NOAA records 20 tornadoes in San Augustine County from 1962 to 2019, the strongest rated F3, with 0 deaths and 6 injuries recorded in the county. That is 115th of 254 Texas counties by days with tornadoes per 1,000 square miles since 1950. A tornado that crossed a county line is counted in each county it touched, with the length of its path inside the county.

Counted as whole tornadoes rather than county records, the Storm Prediction Center's database holds 21 tornadoes whose track touched San Augustine County since 1950 (NOAA's county records number 20: they file a crossing tornado once per county segment, and the two databases differ on some tracks); along their whole tracks they killed 1 person, 0 of them in San Augustine County.

Map of the strongest tornado tracks in Texas.

Source: NOAA NCEI Storm Events Database, tornado records by county (path length in the county, maximum width); ratings as published: F scale before February 1, 2007, EF scale after. Whole-track figures: NOAA Storm Prediction Center tornado database (1950-2025). SPC severe weather database.

When was the last damaging storm in San Augustine County?

The most recent record with damage, injuries or deaths is the February 16, 2021 winter storm ($6.5 million in damage in 2025 dollars).

On the heels of the first winter storm and historically cold temperatures observed earlier in the week across all of the Southern Plains and much of the Lower Mississippi Valley, a second significant winter storm developed across much of these areas from February 16th-18th, with areas of snow, sleet, and freezing rain (some heavy) falling across much of East Texas. Strong forcing and moisture associated with the next upper level trough to move atop the extensive arctic air mass in place resulted in widespread snow and sleet totals of one to three inches, with isolated higher amounts up to five to seven inches over Eastern Cass County. Strong overrunning of warmer air atop the shallow freezing air mass in place resulted in areas of freezing rain over much of Deep East Texas, with ice accumulations of a tenth to a third of an inch observed. …
National Weather Service event narrative, NOAA Storm Events Database (search the full record, event 939591)

Source: NOAA NCEI Storm Events Database; every record of 2025-2026 is listed, earlier ones when they caused deaths, injuries or $250,000 of damage (2025 dollars), and every tornado.

The deadliest and costliest records

Source: NOAA NCEI Storm Events Database: deaths and injuries direct and indirect; damage is property plus crops as estimated by the National Weather Service, converted to 2025 dollars.

Is it getting more frequent?

Records per decade for San Augustine County's most frequent hazards. Counts rose everywhere after 1996, when NOAA began recording every event type, so compare decades within a hazard's complete period only (the shaded cells come before it).

Source: NOAA NCEI Storm Events Database, records per calendar decade; zone records from the CZ_TYPE field (Z).

What time of year?

Records by month in San Augustine County. The two busiest months are in violet.

Source: NOAA NCEI Storm Events Database, records by the month they began.

Federal disaster declarations for San Augustine County

FEMA's register lists 26 declarations that include San Augustine County: 17 major disasters, 9 emergencies and 0 fire management assistance declarations. Most were for hurricane (8) and fire (5).

Source: FEMA OpenFEMA Disaster Declarations Summaries (v2), declarations through October 2, 2026; one declaration is counted once however many areas it names. OpenFEMA dataset page.

How many floods has San Augustine County had?

NOAA's Storm Events Database holds 22 flood or flash flood records for San Augustine County from 2006 to 2024, on 19 days, with 2 deaths. By flood insurance claims since 1978 (OpenFEMA, as of September 8, 2026), San Augustine County ranks 2523rd of 2,942 U.S. counties.

The National Flood Insurance Program has paid $82,000 on 6 claims filed in San Augustine County; the most in one year was 2 in 2016. Claims count insured losses only: uninsured flood damage is not in this file.

Source: FEMA OpenFEMA NFIP Redacted Claims, as of September 8, 2026; claims by year of loss, payments in the dollars of the year paid. OpenFEMA dataset page.

FEMA's modeled risk for San Augustine County

FEMA's National Risk Index rates San Augustine County Very Low overall, with an expected annual loss of $3.9 million. These are FEMA's model estimates of future loss from 18 hazards, not a count of what happened; they can differ from the record above.

Source: FEMA National Risk Index, county table, December 2025 release. FEMA's National Risk Index map.

Counties that share a border with San Augustine County

1. Nacogdoches County 758
2. Angelina County 738
3. Shelby County 665
4. Jasper County 446
5. Sabine County 381
6. San Augustine County 344

Source: U.S. Census Bureau county adjacency file; NOAA NCEI Storm Events Database, records since 1950. The Census Bureau's adjacency file.

Next

• Tornadoes in TexasEvery Texas tornado since 1950 and the counties with the most per square mile
• Severe thunderstorm wind in TexasThe state's severe thunderstorm wind events, by county, year and month
• The Texas recordEvery hazard in the state, its deadliest events and its federal declarations
• FEMA's risk rating for each hazard in San Augustine CountyThe hazard risk calculator: 18 hazards beside the county's record
• Download San Augustine County's FEMA declarations (CSV)26 rows: every declaration that named the county, for your own analysis