Allendale County, South Carolina
County storm and disaster record · FIPS 45005 · population 8,033 · 408 sq mi
NOAA's Storm Events Database holds 315 records for Allendale County, South Carolina from 1950 through June 30, 2026, on 200 days; the most frequent are severe thunderstorm wind events (188 records). The deadliest single record is the September 22, 2000 tornado: 1 death, 5 injuries and $497,000 in damage in 2025 dollars. FEMA has issued 25 declarations naming the county since 1977, 23 of them for natural hazards; the latest for a natural hazard was “Severe Winter Storm” on January 23, 2026.
The record, 1950 to 2026
Storm records filed for the county each year (2026 to June 30, 2026). Before 1996 NOAA recorded only tornadoes (from 1950), thunderstorm wind and hail (from 1955).
- recorded, no damage figure
- under $100,000
- $100,000 or more
- $1 million or more
- $10 million or more, or a death
- $100 million or more, or 10 deaths
- a year's colour: its recorded damage or deaths
- a year with a death
- 1955: wind and hail recorded from 1955
- 1996: all 48 event types from 1996
- Storm records
- 315on 200 days, 1950 to June 30, 2026
- Deaths recorded
- 19 injuries
- Damage, 2025 dollars
- $41Mas filed (scale steps before 1993)
- Tornadoes
- 20strongest EF3
- FEMA declarations
- 25latest 2026
Source: NOAA NCEI Storm Events Database, records through June 30, 2026 (file revision 20260918); damage converted to 2025 dollars with the BLS CPI-U. Search the record at NCEI. BLS consumer price index.
What hazards hit Allendale County most?
The most frequent records are severe thunderstorm wind events: 188 since 1974. 47% of its severe thunderstorm wind events since 1974 fell in June and July. The rank column places the county among South Carolina's counties by days with a record per 1,000 square miles of land over each hazard's complete period.
| Hazard | Records | Days | First, last | Killed | Injured | Damage | Rank in state |
|---|---|---|---|---|---|---|---|
| Severe thunderstorm wind | 188 | 121 | 1974-2026 | 0 | 0 | $398K | 34 of 46 |
| Hail | 35 | 25 | 1982-2022 | 0 | 0 | $343 | 44 of 46 |
| Drought | 22 | 22 | 1996-2019 | 0 | 0 | – | 9 of 46 |
| Tornadoes | 20 | 12 | 1965-2026 | 1 | 8 | $8.8M | 33 of 46 |
| Winter storms | 15 | 11 | 2000-2026 | 0 | 0 | $117K | 34 of 46 |
| Floods | 12 | 4 | 2003-2013 | 0 | 0 | $70K | 45 of 46 |
| Hurricanes and tropical storms | 7 | 7 | 1999-2024 | 0 | 1 | $31M | 10 of 46 |
| Heat | 6 | 6 | 1996-2011 | 0 | 0 | – | 4 of 46 |
| Extreme cold | 3 | 3 | 1996-2026 | 0 | 0 | – | 14 of 46 |
| High wind and dust storms | 3 | 3 | 2008-2013 | 0 | 0 | $16K | 41 of 46 |
| Lightning | 3 | 3 | 2010-2018 | 0 | 0 | $41K | 27 of 46 |
| Heavy rain | 1 | 1 | 2010-2010 | 0 | 0 | $1K | 32 of 46 |
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 Allendale County had?
NOAA records 20 tornadoes in Allendale County from 1965 to 2026, the strongest rated EF3, with 1 death and 8 injuries recorded in the county. 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 19 tornadoes whose track touched Allendale 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.
| Date | Tornado | Rating | Path | Killed |
|---|---|---|---|---|
| 2000-09-22 22:30, as SPC files it | Unnamed | F2 | 4.8 mi | 1 |
| 2022-04-05 13:50, as SPC files it | Allendale to Sycamore | EF3 | 13.28 mi | 0 |
| 2022-04-05 16:03, as SPC files it | Ulmer | EF3 | 34.49 mi | 0 |
Map of the strongest tornado tracks in South Carolina.
Every tornado record filed for Allendale County (20)
| Date | Place | Character | Killed | Injured | Damage |
|---|---|---|---|---|---|
| 2026-03-12 | Millett, Allendale County | EF0 3.72 mi x 30 yd | 0 | 0 | – |
| 2022-04-05 | Ulmers, Allendale County | EF1 1.29 mi x 100 yd | 0 | 0 | – |
| 2022-04-05 | Allendale Oswald Arp, Allendale County | EF3 13.28 mi x 1,000 yd | 0 | 1 | – |
| 2022-04-05 | Ulmers, Allendale County | EF1 2.01 mi x 465 yd | 0 | 0 | – |
| 2020-04-13 | Sycamore, Allendale County | EF0 5.85 mi x 300 yd | 0 | 0 | – |
| 2009-04-10 | Baldock, Allendale County | EF2 5.6 mi x 500 yd | 0 | 0 | $1.4M |
| 2009-04-10 | Averill, Allendale County | EF1 1.2 mi x 300 yd | 0 | 0 | $1.4M |
| 2008-03-15 | Averill, Allendale County | EF2 18 mi x 1,320 yd | 0 | 1 | $3.2M |
| 2007-02-13 | Allendale County | EF1 0.03 mi x 30 yd | 0 | 0 | $4K |
| 2004-09-07 | Millett, Allendale County | F0 1 mi x 50 yd | 0 | 0 | – |
| 2004-09-07 | Martin, Allendale County | F0 0.5 mi x 40 yd | 0 | 0 | – |
| 2004-09-07 | Fairfax, Allendale County | F1 4 mi x 100 yd | 0 | 0 | – |
| 2004-09-07 | Seigling, Allendale County | F0 1 mi x 40 yd | 0 | 0 | – |
| 2004-09-07 | Allendale County | F0 2 mi x 40 yd | 0 | 0 | – |
| 2004-06-12 | Seigling, Allendale County | F1 3 mi x 150 yd | 0 | 0 | – |
| 2000-09-22 | Martin, Allendale County | F2 4.5 mi x 750 yd | 1 | 5 | $497K |
| 2000-09-22 | Martin, Allendale County | F1 1 mi x 350 yd | 0 | 1 | $17K |
| 1999-04-15 | Ulmers, Allendale County | F2 3 mi x 150 yd | 0 | 0 | $39K |
| 1999-04-08 | Allendale County | F1 9 mi x 50 yd | 0 | 0 | $44K |
| 1965-04-24 | Allendale County | F1 | 0 | 0 | $250K step |
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, 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 Allendale County?
The most recent record with damage, injuries or deaths is the April 23, 2025 thunderstorm wind ($1,000 in damage in 2025 dollars).
| Date | Record | Character | Killed | Injured | Damage |
|---|---|---|---|---|---|
| 2026-06-14 | Thunderstorm WindUlmers, Allendale County | 50 kt wind | 0 | 0 | – |
| 2026-06-14 | Thunderstorm WindAllendale Oswald Arp, Allendale County | 50 kt wind | 0 | 0 | – |
| 2026-06-14 | Thunderstorm WindAllendale County | 50 kt wind | 0 | 0 | – |
| 2026-03-12 | TornadoMillett, Allendale County | EF0 3.72 mi x 30 yd | 0 | 0 | – |
| 2026-03-12 | Thunderstorm WindSycamore, Allendale County | 50 kt wind | 0 | 0 | – |
| 2026-03-12 | Thunderstorm WindSeigling, Allendale County | 50 kt wind | 0 | 0 | – |
| 2026-03-12 | Thunderstorm WindAllendale County | 50 kt wind | 0 | 0 | – |
| 2026-02-01 | Extreme Cold/Wind ChillAllendale County · forecast zone Allendale | 0 | 0 | – | |
| 2026-01-31 | Heavy SnowAllendale County · forecast zone Allendale | 0 | 0 | – | |
| 2025-04-23 | Thunderstorm WindFairfax, Allendale County | 45 kt wind | 0 | 0 | $1K |
| 2025-01-21 | Winter StormAllendale County · forecast zone Allendale | 0 | 0 | – | |
| 2024-09-26 | Tropical StormAllendale County · forecast zone Allendale | 0 | 0 | $956K |
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
| Date | Record | Character | Killed | Injured | Damage |
|---|---|---|---|---|---|
| 2000-09-22 | TornadoMartin, Allendale County Fatality occurred in a camper that was one of 10 other campers at a hunt club. The camper was the second one in the line and it appeared to have disintegrated. One of the other campers was turned on its side while the others remained upright, for the most part. Also, there were three mobile homes destroyed, major ... | F2 4.5 mi x 750 yd | 1 | 5 | $497K |
| 2022-04-05 | TornadoAllendale Oswald Arp, Allendale County A National Weather Service Storm Survey Team confirmed an EF-3 tornado with an estimated maximum wind speed of 137 mph in Allendale County, South Carolina. The tornado touched down just north of the intersection of Bluff Road and Best Loop Road at 250 PM, then tracked rapidly northeast across Fitts Road and St. Mark ... | EF3 13.28 mi x 1,000 yd | 0 | 1 | – |
| 2016-09-02 | Tropical StormAllendale County · forecast zone Allendale Allendale County Emergency Management reported numerous trees blown down across much of the county. Several roads were closed due to fallen trees. A Department of Transportation worker was injured during the storm when a tree fell on the car they were driving while attempting to clear another tree that had fallen ... | 0 | 1 | – | |
| 2008-03-15 | TornadoAverill, Allendale County An EF2 Tornado was confirmed by a storm survey conducted by the Charleston, South Carolina National Weather Service Forecast Office. The Tornado touched down in western Allendale County about 3.5 miles south-southwest of Martin at 712 PM EDT and traveled east-southeast for 18 miles before lifting about 2 miles ... | EF2 18 mi x 1,320 yd | 0 | 1 | $3.2M |
| 2000-09-22 | TornadoMartin, Allendale County Damage to a tin roof on a frame home, a hog feeder damaged, minor damage to several brick homes and several trees down. | F1 1 mi x 350 yd | 0 | 1 | $17K |
| Date | Record | Character | Killed | Injured | Damage |
|---|---|---|---|---|---|
| 1999-09-15 | Hurricane (Typhoon)Allendale County · forecast zone Allendale | 0 | 0 | $30M | |
| 2008-03-15 | TornadoAverill, Allendale County | EF2 18 mi x 1,320 yd | 0 | 1 | $3.2M |
| 2009-04-10 | TornadoBaldock, Allendale County | EF2 5.6 mi x 500 yd | 0 | 0 | $1.4M |
| 2024-09-26 | Tropical StormAllendale County · forecast zone Allendale | 0 | 0 | $956K | |
| 2000-09-22 | TornadoMartin, Allendale County | F2 4.5 mi x 750 yd | 1 | 5 | $497K |
| 1999-04-08 | TornadoAllendale County | F1 9 mi x 50 yd | 0 | 0 | $44K |
| 1999-04-15 | TornadoUlmers, Allendale County | F2 3 mi x 150 yd | 0 | 0 | $39K |
| 2011-06-15 | Thunderstorm WindUlmers, Allendale County | 65 kt wind | 0 | 0 | $33K |
Before 1993 NOAA filed damage by category, not amount, so the list above starts in 1993. The highest category filed here before then (entered as $250K, in the dollars of the day) holds: April 24, 1965 (tornado, Allendale County).
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 Allendale 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).
| Hazard | 1950s | 1960s | 1970s | 1980s | 1990s | 2000s | 2010s | 2020-26 |
|---|---|---|---|---|---|---|---|---|
| Severe thunderstorm wind | 0 | 0 | 3 | 4 | 14 | 62 | 76 | 29 |
| Hail | 0 | 0 | 0 | 1 | 6 | 19 | 5 | 4 |
| Drought | – | – | – | – | 3 | 18 | 1 | 0 |
| Tornadoes | 0 | 1 | 0 | 0 | 2 | 12 | 0 | 5 |
| Winter storms | – | – | – | – | 0 | 3 | 9 | 3 |
| Floods | – | – | – | – | 0 | 1 | 11 | 0 |
Source: NOAA NCEI Storm Events Database, records per calendar decade; zone records from the CZ_TYPE field (Z).
What time of year?
47% of its severe thunderstorm wind events since 1974 fell in June and July. The two busiest months are in violet.
The values, month by month
Jan 14 · Feb 11 · Mar 26 · Apr 28 · May 49 · Jun 60 · Jul 58 · Aug 36 · Sep 20 · Oct 6 · Nov 5 · Dec 2 (records).
Source: NOAA NCEI Storm Events Database, records by the month they began.
Federal disaster declarations for Allendale County
FEMA's register lists 25 declarations that include Allendale County: 10 major disasters, 15 emergencies and 0 fire management assistance declarations. Most were for hurricane (14) and tropical storm (2).
| Declared | Number | Type | Title |
|---|---|---|---|
| 2026-01-23 | EM-3632 | Winter Storm | Severe Winter Storm |
| 2024-09-29 | DR-4829 | Hurricane | Hurricane Helene |
| 2024-09-26 | EM-3619 | Tropical Storm | Hurricane Helene |
| 2024-08-05 | EM-3606 | Tropical Storm | Hurricane Debby |
| 2023-08-31 | EM-3597 | Hurricane | Hurricane Idalia |
| 2022-11-21 | DR-4677 | Hurricane | Hurricane Ian |
| 2022-09-29 | EM-3585 | Hurricane | Hurricane Ian |
| 2020-03-27 | DR-4492 | Biological | Covid-19 Pandemic |
| 2020-03-13 | EM-3470 | Biological | Covid-19 |
| 2019-09-30 | DR-4464 | Hurricane | Hurricane Dorian |
| 2019-09-01 | EM-3421 | Hurricane | Hurricane Dorian |
| 2018-09-10 | EM-3400 | Hurricane | Hurricane Florence |
| 2017-10-16 | DR-4346 | Hurricane | Hurricane Irma |
| 2017-09-07 | EM-3386 | Hurricane | Hurricane Irma |
| 2016-10-11 | DR-4286 | Hurricane | Hurricane Matthew |
| 2016-10-06 | EM-3378 | Hurricane | Hurricane Matthew |
| 2015-10-05 | DR-4241 | Flood | Severe Storms and Flooding |
| 2015-10-03 | EM-3373 | Severe Storm | Severe Storms and Flooding |
| 2014-03-12 | DR-4166 | Severe Ice Storm | Severe Winter Storm |
| 2014-02-12 | EM-3369 | Severe Ice Storm | Severe Winter Storm |
| 2005-09-10 | EM-3233 | Hurricane | Hurricane Katrina Evacuation |
| 2000-01-31 | DR-1313 | Severe Storm | Severe Winter Storm |
| 1999-09-21 | DR-1299 | Hurricane | Hurricane Floyd Major Disaster Declarations |
| 1999-09-15 | EM-3145 | Hurricane | Hurricane Floyd Emergency Declarations |
| 1977-08-04 | EM-3047 | Drought | Drought |
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 Allendale County had?
NOAA's Storm Events Database holds 12 flood or flash flood records for Allendale County from 2003 to 2013, on 4 days, with 0 deaths. By flood insurance claims since 1978 (OpenFEMA, as of September 8, 2026), Allendale County ranks 2523rd of 2,942 U.S. counties.
| Storm | Began | Records | Deaths in the county |
|---|---|---|---|
| Hurricane Helene | 2024-09-26 | 1 | 0 |
| Hurricane Floyd | 1999-09-15 | 1 | 0 |
The National Flood Insurance Program has paid $282,000 on 6 claims filed in Allendale County; the most in one year was 2 in 2015. Claims count insured losses only: uninsured flood damage is not in this file.
The values, year by year
1985: 1 · 2015: 2 · 2023: 1 · 2024: 1 · 2025: 1; the other years: 0.
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 Allendale County
FEMA's National Risk Index rates Allendale County Very Low overall, with an expected annual loss of $7.1 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.
| Hazard | Risk rating | Expected annual loss | Modeled frequency |
|---|---|---|---|
| Hurricane | Relatively Moderate | $3.3M | once in about 5 years (modeled) |
| Earthquake | Relatively Low | $811K | once in about 307 years (modeled) |
| Heat Wave | Relatively Low | $675K | 7.4 modeled event-days a year |
| Drought | Relatively Low | $148K | 32 modeled event-days a year |
| Ice Storm | Relatively Low | $58K | about once a year (modeled) |
| Tornado | Relatively Low | $588K | once in about 4 years (modeled) |
| Strong Wind | Relatively Low | $100K | 3.3 a year (modeled) |
| Wildfire | Very Low | $31K | once in about 1,025 years (modeled) |
Source: FEMA National Risk Index, county table, December 2025 release. FEMA's National Risk Index map.
Counties that share a border with Allendale County
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 South CarolinaEvery South Carolina tornado since 1950 and the counties with the most per square mile
- Severe thunderstorm wind in South CarolinaThe state's severe thunderstorm wind events, by county, year and month
- The South Carolina recordEvery hazard in the state, its deadliest events and its federal declarations
- FEMA's risk rating for each hazard in Allendale CountyThe hazard risk calculator: 18 hazards beside the county's record
- Download Allendale County's FEMA declarations (CSV)25 rows: every declaration that named the county, for your own analysis