Alcorn County

Every recorded tornado

1. Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Alcorn County: 4.
2. 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.

Every storm within 100 miles

1. 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.

Smoke overhead

1. 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.

Claims by ZIP code

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.

1. 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.

1. 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).
2. 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.

More event types since 1996

Costliest events since 1996

1. May 2, 2010Flash Flood$4.5 million
   National Weather Service narrative

   Heavy rain produced widespread flash flooding across Alcorn County. Numerous roads were flooded or washed out as a result. One fatality occurred when the vehicle lost control and went into a ditch off of Shiloh Road near Shiloh Ridge Golf Course. The vehicle became fully submerged and the driver drowned as a result. Numerous additional water rescues were made as a result of the flooding. Portions of Highway 72 in Downtown Corinth were flooded. Flood waters went into at least 40 businesses including K-Mart and Kroger. At least 8 homes were destroyed from flood waters. In addition, seventy homes sustained major damage with two receiving minor damage. An apartment complex containing…

2. Jan 24, 2026Ice Storm, Alcorn$4.0 million
   National Weather Service narrative

   Sleet accumulation of 1/2 to 1 inch, followed by 1/2 to 1 inch of ice.

3. Oct 13, 2001Flash Flood$1.0 million
   National Weather Service narrative

   Many businesses and homes were damaged due to flood water. Numerous roads were flooded across the county.

4. Apr 3, 2025Tornado$900,000
   National Weather Service narrative

   The tornado touched down just NE of the Alcorn County Road Maintenance Facility on County Road 306. Here, the tornado snapped and uprooted several trees behind residences along the road. One home here did sustain moderate damage due to a tree falling on it, but this was the only structural damage noted along County Road 306. The tornado continued through a wooded area approaching Hwy 72, crossing just west of the Glen Town Hall. The Glendale Elementary School sustained minor damage to the roof (less than 20%) and several trees were uprooted here. The tornado weakened after this point and sporadic tree damage was noted throughout a wooded area to the northeast between County Road…

5. Jan 31, 2026Cold/Wind Chill, Alcorn$500,000
   National Weather Service narrative

   A dry, mid-level shortwave aid in the push of another cold front in late January. Another arctic airmass residing behind this boundary resulting in another bitterly cold period. Cold temperatures combined with elevated northerly winds resulted in sub zero wind chill values across north Mississippi.

6. Feb 23, 2019Tornado$250,000
   National Weather Service narrative

   The tornado damage was EF0/EF1 in Alcorn County with numerous trees knocked down. A home received moderate damage to mainly the roof while several manufactured homes were damaged. Several outbuildings and sheds were also damaged. Peak winds in Alcorn County were near 100 mph. Most of the path was in rural areas in Alcorn county. The tornado crossed into Tishomingo County.

7. Feb 5, 2008Tornado$250,000
   National Weather Service narrative

   The tornado touched down in the community of Union Center about four miles west of the town of Theo. Much of the damaged occurred along County Road 654A. Six mobile homes were hit with two destroyed and two heavily damaged. Four injuries occurred in the mobile home that was destroyed. Several vehicles and a RV was tossed about as well. Numerous trees were knocked down in the vicinity. The tornado then tracked northeast across U.S. Highway 72 and struck three houses near Chapman's Restaurant. The Bethlehem Baptist Church sustained roof damage and the nearby cemetery was damaged. The tornado was rated EF-1 with wind speeds estimated around 100 mph and a width of 100 yards.

8. Jul 22, 2003Thunderstorm Wind$100,000
   National Weather Service narrative

   Several buildings were damaged in the Corinth area. Numerous trees and power lines were knocked down across the county.

9. Apr 27, 2011Tornado$100,000
   National Weather Service narrative

   A weak tornado briefly touched down along Highway 356, east of Rienzi, and moved northeast. Minor damage occurred to a few homes. Several trees were knocked down as well. The tornado lifted near County Road 430.

10. Mar 15, 2026Tornado$100,000
    National Weather Service narrative

    An EF1 tornado started just to the west of the intersection of County Road 636, causing minor roof damage to a home. The tornado continued east across County Road 602, County Road 616, County Road 627, and County Road 628, snapping and uprooting numerous trees, downing powerlines, damaging fences, and causing minor roof damage. Continuing east along Highway 2, the tornado caused minor damage to the roofs of several homes. The tornado then intensified, causing the most extensive damage at a church, removing part of the roof and blowing out a few windows. The tornado turned north and moved into the neighborhood along County Road 630, damaging several homes, before lifting. Peak…

1. 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.

All-time high

107°F2 times, most recently Jun 30, 2012

All-time low

−21°FJan 30, 1966

Warmest night

83°FJun 23, 1988

Coldest day

5°FJan 11, 1982

Wettest day

7.15 inSep 27, 2002

Snowiest day

10.0 inJan 22, 1935

Hottest year

2024mean 63.0°F

Coldest year

1976mean 56.4°F

Wettest year

201875.12 in

Driest year

195235.09 in

Snowiest season

25.0 in1967-68

Station Selmer (USC00408160), 445 ft elevation, 18.0 miles from the population centre. Daily records from 1958 to September 30, 2026; 97.4% 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.

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.

Neighbouring counties

• 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 USC00408160.
• 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.