Lamar County, Texas

What hazards hit Lamar County most?

The most frequent records are hail reports: 269 since 1962. 61% of its hail reports since 1962 fell in April and May. 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 Lamar County had?

NOAA records 47 tornadoes in Lamar County from 1957 to 2026, the strongest rated EF4, with 11 deaths and 240 injuries recorded in the county. That is 112th 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 48 tornadoes whose track touched Lamar County since 1950 (NOAA's county records number 47: they file a crossing tornado once per county segment, and the two databases differ on some tracks); along their whole tracks they killed 12 people, 11 of them in Lamar 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 Lamar County?

The most recent record with damage, injuries or deaths is the June 23, 2026 flash flood ($1.0 million in damage in 2025 dollars).

Numerous roads, buildings and vehicles were flooded in and around Blossom, including an RV park, apartment complex, and several homes. Highway 82 through town was flooded and approximately 35 water rescues were reported.
National Weather Service event narrative, NOAA Storm Events Database (search the full record, event 1352125)

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

A damage figure marked "step" is a record from before 1993: NOAA then filed damage by category, and the figure is the category as entered, in the dollars of that year, not an estimate of the loss.

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 Lamar 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).

Heat in the 2020-26: 40 records against 6 in the decade before, 40 of them forecast-zone records. Cells marked z rose mostly through zone records. The local National Weather Service office files these once per forecast zone, so a change in how it draws its zones or splits a storm into records moves this count as much as the weather does; read it beside the Lamar County days with a record above.

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

What time of year?

61% of its hail reports since 1962 fell in April and May. The two busiest months are in violet.

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

Federal disaster declarations for Lamar County

FEMA's register lists 24 declarations that include Lamar County: 17 major disasters, 7 emergencies and 0 fire management assistance declarations. Most were for severe storm (6) and flood (4).

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 Lamar County had?

NOAA's Storm Events Database holds 54 flood or flash flood records for Lamar County from 1996 to 2026, on 34 days, with 0 deaths. By flood insurance claims since 1978 (OpenFEMA, as of September 8, 2026), Lamar County ranks 1137th of 2,942 U.S. counties.

The National Flood Insurance Program has paid $2.6 million on 139 claims filed in Lamar County; the most in one year was 34 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 Lamar County

FEMA's National Risk Index rates Lamar County Relatively Low overall, with an expected annual loss of $31.9 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 Lamar County

1. Bryan County, OK 863
2. Fannin County 804
3. Lamar County 765
4. Red River County 646
5. Choctaw County, OK 578
6. Delta County 360

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
• Hail in TexasThe state's hail reports, 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 Lamar CountyThe hazard risk calculator: 18 hazards beside the county's record
• Download Lamar County's FEMA declarations (CSV)24 rows: every declaration that named the county, for your own analysis