Dunklin County

Every recorded tornado

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

River crests

River gauges

1. 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.

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.

Every earthquake of magnitude 4 or more within 50 miles

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.

Mapped landslides

Mapped by MO DNR (2).

1. Landslides mapped in the USGS compilation of landslide inventories across the United States (version 3.0, 2025), rated probable or better. The compilation joins inventories made by federal and state agencies for different purposes and areas, so the number mapped in a county reflects how closely it has been surveyed as much as how often its slopes fail. An area with few records may simply not have been mapped. Deaths are as recorded in the inventories; a slide listed in two inventories is counted once.

USGS Landslide Inventories across the United States, version 3.0, retrieved October 27, 2026.

More event types since 1996

Costliest events since 1996

1. Jan 26, 2009Ice Storm, Dunklin$25.0 million
   National Weather Service narrative

   One inch of ice fell over Dunklin County. Widespread power outages occurred. Roads were impassable.

2. Feb 24, 2018Tornado$2.0 million
   National Weather Service narrative

   The tornado tracked from Clay County, AR to Dunklin County. Most of the damage was in Malden where a number of homes were damaged. A few homes, trees and power poles were damaged from the St. Francis River to Malden. The path was intermittent. The tornado crossed into New Madrid County and then lifted. Estimated peak wind along the entire track was 115 mph.

3. Apr 2, 2006Tornado$1.5 million
   National Weather Service narrative

   The tornado tracked east out of Greene County, Arkansas into Dunklin County, Missouri. The tornado then continued east into Pemiscot County, Missouri. Seven homes were destroyed and thirty-three homes were damaged.

4. Dec 10, 2021Tornado$1.5 million
   National Weather Service narrative

   The tornado crossed from Mississippi County, Arkansas into Dunklin County, Missouri near the Little River area south of Hornersville, near the Arkansas/Missouri state line. Several homes and mobile homes were heavily damaged or destroyed along State Line Road. Several vehicles and a boat were tossed or overturned. Additional debarking of trees was noted. After exiting the Little River area, the tornado damaged six metal electric transmission line towers. Five of the towers had their top sections collapse, and one tower completely collapsed. Several center pivot irrigation systems were overturned. The tornado then crossed into Pemiscot County, Missouri. Peak winds in Dunklin County…

5. Apr 3, 2018Tornado$1.5 million
   National Weather Service narrative

   The tornado developed near the intersection of County Roads 627 and 638 and moved east. The tornado damaged storage buildings, trees, power poles, and center pivot irrigation systems. A few residences also experienced shingle and roof damage. The tornado turned northeast after crossing State Highway K. The most significant damage was noted along County Road 657 south-southwest of Hornersville. The tornado dissipated in the Hornersville Swamp Conversation Area.

6. May 1, 2011Flood$500,000
   National Weather Service narrative

   Heavy rains during late April into the beginning of May caused the St. Francis River to reach near record levels. The river remained above flood stage through the end of the month. Numerous roads were flooded and/or damaged. Several homes and businesses sustained minor damage due to flooding. Several agriculture fields were flooded. The town of Hornersville was flooded. In addition, the town of Wilhelmina was evacuated due to flood waters.

7. Mar 14, 2025Tornado$350,000
   National Weather Service narrative

   A tornado touched down shortly before 1 AM CDT along State Highway A between County Roads 516 and 526. The tornado moved northeast, causing multiple irrigation pivots to be overturned, downing numerous power poles, and snapping trees southwest of Kennett. Numerous homes suffered roof damage north of US Highway 412 and the South Bypass, along State Route VV, East 7th Street, and South Anthony Street. As the tornado crossed the intersection of Highway 412 and Highway 25, additional wooden power poles were damaged, trees were uprooted, and damage was caused to several businesses and a motel. Some homes had roof damage on Seely Street and Legion Street. The tornado continued…

8. May 4, 2020Thunderstorm Wind$300,000
   National Weather Service narrative

   A macroburst struck portions of Dunklin County with widespread wind damage from Campbell to Clarkton. Numerous trees and power lines were knocked down. There was significant damage to a building in Campbell. A warehouse suffered major damage in Clarkton and a center pivot irrigation system was overturned. The Lynn Oak Church also suffered damage. A train was derailed along Highway 62 near the Arkansas state line, closing the highway.

9. Apr 13, 2022Tornado$260,000
   National Weather Service narrative

   This tornado began just south of County Road West County Road 70 in the Garson area causing damage to hardwood trees. As the tornado moved northeast across agricultural land, several center pivot irrigation systems were rolled. The tornado crossed into Dunklin County near County Road 645, damaging a mobile home unit and additional center pivot irrigation systems along Missouri Route K and County Road 626. An outbuilding was damaged along County Road 655 with the tornado lifting as it moved into Hornersville. Peak winds were estimated at 85 mph. Thanks to NSSL for assistance with this damage survey.

10. Apr 30, 2017Tornado$250,000
    National Weather Service narrative

    Damage to roofs. Some sheds and outbuildings destroyed. Roof on a abandoned school collapsed. Tractor trailer overturned at the intersection of Highway 164 and route N. Large brick building was destroyed. There was a house with windows blown out and a tree on a house. Peak winds were estimated at 90 mph.

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

108°F2 times, most recently Jun 30, 2012

All-time low

−15°F2 times, most recently Jan 17, 1982

Warmest night

84°FJul 15, 1977

Coldest day

4°FJan 21, 1985

Wettest day

8.16 inSep 23, 2006

Snowiest day

9.0 inMar 6, 2015

Hottest year

2012mean 62.5°F

Coldest year

1961mean 57.2°F

Wettest year

197557.61 in

Driest year

198629.62 in

Snowiest season

14.5 in2009-10

Station Malden Municipal Airport (USC00235207), 290 ft elevation, 19.4 miles from the population centre. Daily records from 1960 to October 12, 2026; 85.2% 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 USC00235207.
• 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.
• Landslides USGS Landslide Inventories across the United States, version 3.0 (2025).
• 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.