McMinn County
Population 57,404 (2025) 430 sq mi
McMinn County has recorded 24 tornadoes since 1950, 26th most of 95 counties in Tennessee; the most recent was on March 17, 2018.
Hazard fingerprint Each spoke is this county’s percentile among U.S. counties where that hazard occurs. How it is computed
- Tornado damage paths since 195024
- Tropical cyclone tracks within 100 miles since 1851, wider where stronger6
- Wildfire burn scars since 19841
At a glance
The record for McMinn County in eight numbers. Each links to its section below.
Tropical cyclones within 50 mi
3
25th of 95 in Tennessee
None at hurricane strength since 1851
DetailsAcres burned since 1984
98
40th of 95 in Tennessee
1 large fire; the largest was Unnamed, 2000
DetailsStrongest tornado
EF4
April 27, 2011, 48.0 mile path
Strongest tropical cyclone
TS
Tropical storm Zeta, 2020, 30.5 miles away
Tornadoes
About one every 3.2 years since 1950, 8 of them rated F3/EF3 or stronger.
Strongest
April 27, 2011
EF4, 48.0 mile path
800 yards wide; 20 killed along the whole path.
Most recent
Saturday, March 17, 2018
EF0, 0.4 mile path
8 years ago.
Every recorded tornado
| Mar 17, 2018 | EF0 | 0.4 | 0 | 0 |
| Nov 30, 2016 | EF2 | 11.3 | 20 | 0 |
| Mar 2, 2012 | EF3 | 41.0 | 44 | 0 |
| Apr 27, 2011 | EF1 | 12.5 | 1 | 0 |
| Apr 27, 2011 | EF4 | 48.0 | 335 | 20 |
| Apr 27, 2011 | EF0 | 0.7 | 0 | 0 |
| Apr 27, 2011 | EF0 | 2.3 | 0 | 0 |
| Apr 27, 2011 | EF2 | 27.9 | 0 | 4 |
| Apr 4, 2011 | EF0 | 0.1 | 0 | 0 |
| Oct 9, 2009 | EF0 | 0.2 | 0 | 0 |
| Oct 9, 2009 | EF0 | 0.5 | 0 | 0 |
| May 8, 2009 | EF0 | 0.1 | 0 | 0 |
| May 10, 1995 | F1 | 3.0 | 0 | 0 |
| Apr 27, 1994 | F0 | 0.1 | 0 | 0 |
| Apr 15, 1994 | F3 | 15.0 | 9 | 1 |
| Feb 21, 1993 | F3 | 19.0 | 17 | 0 |
| Feb 6, 1986 | F3 | 10.0 | 5 | 0 |
| Dec 5, 1977 | F1 | 5.1 | 1 | 0 |
| Apr 8, 1974 | F3 | 2.0 | 1 | 0 |
| Apr 3, 1974 | F3 | 21.2 | 50 | 3 |
| Apr 3, 1974 | F1 | 3.6 | 32 | 1 |
| Mar 19, 1963 | F2 | 3.6 | 1 | 0 |
| May 2, 1953 | F4 | 4.2 | 8 | 4 |
| Feb 29, 1952 | F2 | 15.3 | 0 | 0 |
- Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within McMinn County: 1.
- Weak tornadoes were under-recorded before Doppler radar coverage became national in the early 1990s, so earlier decades read low. Ratings use the Fujita scale before February 2007 and the Enhanced Fujita scale after.
Storm Prediction Center severe weather database, 1950 to 2025.
Hurricanes and tropical storms
3 passed within 50 miles since 1851; none at hurricane strength.
Strongest within 50 miles
October 29, 2020
Zeta, Tropical storm
30.5 miles at closest approach, winds near 55 mph.
Most recent
September 27, 2024
Helene, Tropical storm
24.0 miles at closest approach.
Every storm within 100 miles
| Helene | 2024 | 24.0 | Tropical storm |
| Zeta | 2020 | 30.5 | Tropical storm |
| Frederic | 1979 | 65.6 | Tropical storm |
| Eloise | 1975 | 5.2 | Tropical storm |
| Audrey | 1957 | 98.7 | Tropical storm |
| Unnamed | 1932 | 0.0 | Post-tropical |
| Unnamed | 1915 | 50.7 | Post-tropical |
| Unnamed | 1907 | 79.8 | Post-tropical |
| Unnamed | 1902 | 78.1 | Post-tropical |
| Unnamed | 1901 | 95.7 | Post-tropical |
| Unnamed | 1892 | 67.2 | Tropical storm |
- Tropical storms and hurricanes (34 kt or more, still tropical) at closest approach. Post-tropical remnants with gale-force winds are listed but not counted. Direct: track within 50 miles; near: within 100 miles. Distance is measured to the county boundary for counties and to the city centre for cities, using positions interpolated hourly between HURDAT2 fixes.
National Hurricane Center HURDAT2, 1851 to 2025.
Wildfire and smoke
98 acres burned in 1 large fire since 1984, equal to 0.0% of the land.
Largest
April 5, 2000
Unnamed Fire, 684 acres
98 acres inside McMinn County.
Most recent
April 5, 2000
Unnamed Fire
684 acres in total.
Every large fire
| Unnamed | 2000 | 98 | 684 |
- Large fires mapped by the Monitoring Trends in Burn Severity program since 1984: 1,000 acres or more in the West, 500 or more in the East. Prescribed burns are excluded. Acres here are the part of each perimeter inside this place.
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service), 1984 to 2026.
Smoke overhead
Smokiest year
2023: 47 days
Heavy smoke on 8 days in 2023, the most of any year.
Last 10 years
10.8 days a year
Medium or heavy smoke, 2016 to 2025.
2025
8 days
Medium or heavy smoke. 34 so far in 2026.
- A smoke day is a date on which a smoke plume traced by NOAA Hazard Mapping System analysts from satellite imagery covered this place's point (the county's population centre or the city centre). Counts here are of medium or heavy smoke. Since 2018 analysts have often drawn light smoke as one area over most of the continent, so light-smoke counts are not comparable from year to year. The plumes show smoke anywhere in the air above, not air quality at the ground, and smoke hidden by cloud is missed.
NOAA Hazard Mapping System smoke analysis, 2011 to 2026, retrieved October 30, 2026.
Floods and flood insurance
40 federal flood insurance claims since 1984, with $351,000 paid.
Most claims in one year
1994: 16 claims
$78,000 paid.
2nd most
2003: 13 claims
$242,000 paid.
Claims by ZIP code
| 37303 | 33 | $328,000 |
| 37331 | 6 | $23,000 |
Flood events since 1996
- Flash Flood28
- Flood16
- Heavy Rain2
This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026. NOAA Storm Events through 2026.
River crests
Most severe crest
February 7, 2020
Oostanaula Creek at Sanford 1SE, 9.85 ft
0.85 feet above the 9.0 ft flood stage; minor flooding by today’s categories.
| Feb 7, 2020 | Oostanaula Creek at Sanford 1SE | 9.85 | +0.85 |
| Feb 24, 2019 | Oostanaula Creek at Sanford 1SE | 9.72 | +0.72 |
| Dec 26, 2015 | Oostanaula Creek at Sanford 1SE | 9.50 | +0.50 |
| Apr 13, 2020 | Oostanaula Creek at Sanford 1SE | 9.20 | +0.20 |
| Nov 29, 2011 | Oostanaula Creek at Sanford 1SE | 8.80 | −0.20 |
| Jan 7, 2009 | Oostanaula Creek at Sanford 1SE | 8.53 | −0.47 |
| Dec 3, 2015 | Oostanaula Creek at Sanford 1SE | 8.34 | −0.66 |
| Jan 16, 2013 | Oostanaula Creek at Sanford 1SE | 8.34 | −0.66 |
| Jan 31, 2013 | Oostanaula Creek at Sanford 1SE | 8.22 | −0.78 |
| Dec 29, 2018 | Oostanaula Creek at Sanford 1SE | 8.21 | −0.79 |
| Jan 25, 2010 | Oostanaula Creek at Sanford 1SE | 8.16 | −0.84 |
| May 6, 2013 | Oostanaula Creek at Sanford 1SE | 8.15 | −0.85 |
| Sep 6, 2011 | Oostanaula Creek at Sanford 1SE | 8.08 | −0.92 |
| Mar 24, 2020 | Oostanaula Creek at Sanford 1SE | 8.02 | −0.98 |
| Feb 24, 2022 | Oostanaula Creek at Sanford 1SE | 7.97 | −1.03 |
River gauges
| Oostanaula Creek at Sanford 1SE | 9.0 | 9.85 ft | 0 |
- Crests are the highest and the recent crests the National Weather Service lists for each river gauge in the county that has a flood stage, not every flood. Flood categories use each gauge's current flood stages; crests from before levees, dams or channel changes may not be comparable. Crests measured on an old datum are left out of the rankings.
NOAA National Water Prediction Service gauge records, retrieved October 30, 2026.
Drought
In severe drought or worse for 110 of 1,581 months since 1895 (7%); the longest spell lasted 15 months.
110
Months in severe drought or worse since 1895
29
Months in extreme drought
7%
Share of all months, severe or worse
1
Drought reports to the Weather Service since 1996
Lowest reading
September 1925
−5.77, extreme drought
Longest severe spell
15 months
May 2007 to July 2008.
Latest month
September 2026
−2.61, moderate drought
Last severe month: April 2026.
- The Palmer Drought Severity Index is computed by NOAA each month from the county's average temperature and precipitation, relative to the county's own climate. Zero is normal; -3 or lower is severe drought and -4 or lower extreme drought. It describes the long-term balance of moisture, not water supply or crop losses.
NOAA NCEI nClimDiv county Palmer Drought Severity Index, 1895 to September 2026, issued October 6, 2026.
Earthquakes
7 earthquakes of magnitude 4 or more within 50 miles since 1900; the largest was magnitude 4.7 in 1973.
20
Magnitude 2.5+ inside the county since 1973
52
Magnitude 3+ within 50 miles since 1973
7
Magnitude 4+ within 50 miles since 1900
0
Magnitude 5+ within 50 miles since 1900
Largest within 50 miles
November 30, 1973
Magnitude 4.7
1 km NE of Alcoa, Tennessee; 33.7 miles away, 1.9 miles deep.
Most recent, magnitude 3 or more
May 10, 2025
Magnitude 4.1
21 km SE of Greenback, Tennessee; 25.8 miles away.
Every earthquake of magnitude 4 or more within 50 miles
| May 10, 2025 | 4.1 | 25.8 |
| Dec 12, 2018 | 4.4 | 3.4 |
| Mar 27, 1987 | 4.2 | 13.9 |
| Mar 27, 1987 | 4.2 | 15.1 |
| Oct 9, 1984 | 4.2 | 42.9 |
| Oct 9, 1984 | 4.0 | 42.0 |
| Nov 30, 1973 | 4.7 | 33.7 |
- Earthquakes of magnitude 2.5 or more in the USGS Comprehensive Catalog since 1900. Within 50 miles means the epicentre lies within 50 miles of the county boundary (or inside the county).
- Small earthquakes were under-recorded before the modern seismic networks of the 1970s and are still missed in remote areas, so early decades read low. Magnitudes are as the catalogue reports them and mix scales (moment, local and body-wave).
USGS ANSS Comprehensive Earthquake Catalog, 1900 to present, retrieved October 30, 2026.
Severe weather and other events
540 events in the National Weather Service record, 447 of them since 1996.
56
Hail reports, 1 inch or larger
7
Hail, 2 inches or larger
208
Damaging gusts, 58 mph+
39
Winter weather events since 1996
0
Heat events since 1996
0
Cold events since 1996
Largest hail
June 7, 1985
3.00 inches
Strongest measured or estimated gust
April 25, 2010
84 mph
More event types since 1996
| Lightning | 1 | 0 |
Costliest events since 1996
- May 6, 2003Flash Flood$16.7 million
National Weather Service narrative
Widespread flooding, road closures, damage, evacuations.
- Mar 2, 2012Tornado$2.0 million
National Weather Service narrative
Harrison Tornado - Segment #4. The Harrison Tornado continued to intensify again as it crossed from Polk into McMinn County. It was an EF1 at 100 MPH when it crossed the county line but quickly elevated to an EF2, and reached its maximum strength only about 1 1/2 miles inside McMinn County as an EF2 at 130 MPH where it caused heavy damage to several rural homes.||The tornado then continued to the northeast slowly weakening, crossed U.S. Highway 411, then started to climb the terrain on the north end of Starr Mountain where it dissipated. This storm went on to produce another tornado in Monroe County.||In McMinn County 37 homes and mobile homes were damaged. Four homes and seven…
- Feb 14, 2003Flood, Mcminn$907,000
National Weather Service narrative
Four day rainfall totals of two to eight inches fell across east Tennessee, with the highest amounts occurring across the Cumberland Plateau and adjacent valleys areas. This rainfall combined with a melting snowpack (reports of up to a foot in the higher elevations) to produce widespread flooding of rivers and streams with numerous mudslides also reported (one notable mudslide pushed an apartment complex off its foundation in Knox County). The Powell, Clinch and Holston rivers measured the most significant rises with Claiborne, Rhea and Knox counties reporting the most significant damage.
- Apr 27, 2011Tornado$200,000
National Weather Service narrative
Ringgold-Apison Tornado. The tornado continued from Polk into McMinn County. The tornado re-intensified causing EF2 damage with 130 mph estimated max winds. Near the intersection of County Road 750 and County Road 966 two houses and a mobile home were destroyed and five people were injured. The tornado finally dissipated southwest of the McMinn County Airport. ||This prolific tornado started in Catoosa County, GA, accounted for 21 fatalities and tracked 57 miles over 5 parts of counties; 46 miles and 4 counties in Tennessee.
- Apr 27, 2011Tornado$200,000
National Weather Service narrative
Englewood-S. Madisonville Tornado. A NWS storm survey reported an EF1 tornado touched down northeast of Englewood. It formed near Carl Lee Road in McMinn County and tracked into Monroe County before dissipating. It had a path width of 200 yards. The 100 mph wind damaged several homes and downed numerous trees and powerlines.
- Apr 27, 2011Tornado$100,000
National Weather Service narrative
Cleveland-to-Etowah Tornado. A NWS storm survey reported an EF1 tornado continued out of Polk county into McMinn county, before it dissipated south of Etowah. The max wind of 90 mph downed several trees and damaged a few roofs on homes in southeast McMinn county. In total, this tornado tracked about 28 miles in three counties.
- Jul 22, 2002Thunderstorm Wind$70,000
National Weather Service narrative
Thunderstorm wind gusts tore the roof off of a business on Washington Avenue which slammed into a bed and breakfast next door damaging the home. Also, a plate-glass window was blown out and several trees were downed in the storm.
- Jun 10, 1999Thunderstorm Wind$50,000
National Weather Service narrative
5000 square feet of a 13000 square foot furniture warehouse roof was blown off. The building housed the showroom for the business owned by Jim and Sue McQuain.
- Jun 5, 2011Thunderstorm Wind$40,000
National Weather Service narrative
A trained spotter reported several homes damaged by thunderstorm wind on County Route 100 west of Athens. Numerous trees were also downed by the wind.
- Sep 21, 2002Flash Flood$35,000
National Weather Service narrative
Numerous roads were flooded and impassable in and around Athens including state highway 30 and 197 as well as county roads 249 and 169. One vehicle was totally submerged in high water on highway 197 and the occupants had to be rescued.
- Storm Events records before 1996 cover only tornadoes, thunderstorm wind and hail. Damage figures are as reported by the National Weather Service at the time, not adjusted for inflation.
NOAA NCEI Storm Events Database, 1950 to 2026, issued October 26, 2026.
Weather records
From Athens, 1 miles from the county’s population centre, with records from 1962.
- All-time high
- 105°F2 times, most recently Jul 18, 1980
- All-time low
- −16°F3 times, most recently Jan 22, 1985
- Warmest night
- 77°FJul 23, 2017
- Coldest day
- 8°FJan 11, 1982
- Wettest day
- 8.89 inSep 6, 2011
- Snowiest day
- 11.5 inMar 13, 1993
- Hottest year
- 2019mean 61.1°F
- Coldest year
- 1966mean 55.6°F
- Wettest year
- 201886.56 in
- Driest year
- 200734.85 in
- Snowiest season
- 23.0 in1992-93
Median first snow
January 13
Earliest: November 9, 1991
Median last snow
February 3
Latest: April 7, 1989
7 of 52 winters had no measurable snow.
Station Athens (USC00400284), 940 ft elevation, 1.0 miles from the population centre. Daily records from 1962 to October 23, 2026; 98.5% of days in the last 30 years are complete. Records at a single station can differ from a city’s official threaded record, which may combine several stations.
NOAA NCEI Global Historical Climatology Network Daily.
Federal disaster declarations
16 since 1953. The most recent: Severe Winter Storm, February 6, 2026.
| Feb 6, 2026 | Winter Storm | DR-4898-TN |
| Jan 24, 2026 | Winter Storm | EM-3635-TN |
| Apr 2, 2025 | Severe Storm | EM-3625-TN |
| Apr 2, 2020 | Biological | DR-4514-TN |
| Mar 13, 2020 | Biological | EM-3473-TN |
| Apr 2, 2015 | Severe Ice Storm | DR-4211-TN |
| Mar 16, 2012 | Severe Storm | DR-4060-TN |
| May 1, 2011 | Severe Storm | DR-1974-TN |
| May 15, 2009 | Severe Storm | DR-1839-TN |
| Sep 5, 2005 | Hurricane | EM-3217-TN |
| May 8, 2003 | Severe Storm | DR-1464-TN |
| Apr 14, 1994 | Flood | DR-1022-TN |
| Feb 28, 1994 | Severe Storm | DR-1010-TN |
| Mar 14, 1993 | Snowstorm | EM-3095-TN |
| Apr 4, 1974 | Tornado | DR-424-TN |
| Mar 21, 1973 | Flood | DR-366-TN |
This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
OpenFEMA Disaster Declarations Summaries, retrieved October 30, 2026. Statewide declarations are not listed.
How this compares
Where McMinn County stands among 95 counties in Tennessee and 3,143 in the United States.
| Tornadoes since 1950 | 24 | 26 / 95 |
| Tornadoes rated F3/EF3 or stronger | 8 | 2 / 95 |
| Tropical cyclones within 50 mi | 3 | 25 / 95 |
| Hurricane-strength passes within 50 mi | 0 | — |
| Wildfire acres since 1984 | 98 | 40 / 95 |
| Flood insurance claims | 40 | 47 / 95 |
| Flood insurance paid | $351,000 | 63 / 95 |
| Disaster declarations | 16 | 86 / 95 |
| Flood events since 1996 | 46 | 36 / 95 |
| Hail and wind events since 1996 | 338 | 20 / 95 |
| Winter storm events since 1996 | 39 | 85 / 95 |
| Reported damage since 1996 | $22.0 million | 38 / 95 |
| River crests at major flood stage | 0 | — |
| High tide flooding days a year, last 10 years | 0.0 | — |
| Months in severe drought since 1895 | 110 | 28 / 95 |
| Medium or heavy smoke days a year, last 10 years | 10.8 | 75 / 95 |
| Earthquakes M4+ within 50 mi since 1900 | 7 | 31 / 95 |
| Earthquakes M2.5+ in the county since 1973 | 20 | 6 / 95 |
Neighbouring counties
| Bradley County | 28 | 3 |
| Loudon County | 9 | 3 |
| Meigs County | 5 | 3 |
| Monroe County | 19 | 3 |
| Polk County | 14 | 3 |
| Roane County | 7 | 3 |
Sources and vintage
Every number on this page comes from these public records.
- Tornadoes NOAA Storm Prediction Center severe weather database, through 2025.
- Tropical cyclones NOAA National Hurricane Center HURDAT2 (Atlantic; Northeast and Central Pacific), through 2025.
- Wildfire USGS/USFS Monitoring Trends in Burn Severity, through 2026.
- Storm events NOAA NCEI Storm Events Database, through 2026.
- Flood insurance OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026.
- Declarations OpenFEMA Disaster Declarations Summaries v2, retrieved October 30, 2026.
- Weather records NOAA NCEI Global Historical Climatology Network Daily, station USC00400284.
- River crests NOAA National Weather Service, National Water Prediction Service river gauges, retrieved October 30, 2026.
- Drought NOAA NCEI nClimDiv county Palmer Drought Severity Index, through September 2026.
- Smoke NOAA NESDIS Hazard Mapping System smoke analysis, retrieved October 30, 2026.
- Earthquakes USGS ANSS Comprehensive Earthquake Catalog (ComCat), retrieved October 30, 2026.
Joins, thresholds and known limits are set out in the methodology. Found an error? Report it. Page built October 30, 2026.