Lucas County

Every recorded tornado

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

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.

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.

More event types since 1996

Costliest events since 1996

1. Aug 1, 2003Drought, Lucas$12.7 million
   National Weather Service narrative

   Dry weather settled in over Iowa during the month. The last widespread rain occurred on 09 July. With the increasingly dry conditions became a primary concern as the month progressed. An extended period of heat and humidity from the 15th to 25th saw highs into the 90s to over 100 degrees F. in some locations. By month's end drought indices had worsened to severe to extreme drought across south central Iowa and at least moderate drought over the remainder of the HSA. Waterloo had its driest August on record, Des Moines its 3rd driest and Ottumwa its 8th driest. A cold front brought only a brief respite from the intense heat, as temperatures rebounded into the 90s to near 100…

2. Mar 5, 2022Tornado$1.5 million
   National Weather Service narrative

   This tornado formed as two other tornadoes dissipated in southern Lucas county. The tornado moved to the northeast across rural areas of southern into central Lucas county primarily in wooded areas and cropland with little damage. Of note however, was a satellite tornado observed in chasing video (in seperate Storm Data entry) which developed north of the main tornado and moved south toward the main circulation, doing a complete revolution around the main tornado before being absorbed. Shortly afterwards, the tornado crossed State Highway 14 south of Chariton destroying a conservation center which was rated EF3. The tornado continued to the northeast removing a roof from a house…

3. Jul 20, 2010Flash Flood$1.0 million
   National Weather Service narrative

   Vehicle was stalled on Court Ave in Chariton. Water flowing on the road and coming into the vehicle.

4. Oct 26, 1997Heavy Snow, Lucas$640,000
   National Weather Service narrative

   The first major winter storm of the season developed over the central Rockies as a powerful upper level jet stream dove into the southern Rockies. Intense low pressure developed over northern Oklahoma, then drifted northeast on the early morning of the 26th. A cold high pressure of Arctic origin was poised to the north of Iowa. The high gradually pushed cold air south into the central U.S. causing the precipitation on the northwest edge of the storm system to change to snow. During the early morning hours, the system went convective with widespread "thundersnow" reported over the south half of Iowa. Lightning struck a tree outside of a house in Nevada causing damage to electrical…

5. Nov 10, 1998High Wind, Lucas$300,000
   National Weather Service narrative

   Iowa experienced the worst November storm system since the great storm of 9 and 10 November 1975. During the 9th, low pressure developed over southeast Colorado. The low moved across Kansas during the afternoon and evening of the 9th and deepened to about 990 mb. Warm and moist air was drawn north ahead of the low resulting in widespread across the state. Thunderstorms erupted during the late evening of the 9th, though no severe weather occurred. During the predawn hours of the 10th, a jet streak rotated around the base of the upper level low pressure area. The jet stream, combined with a tropospheric fold, resulted in explosive deepening of the low. As the low moved through…

6. May 7, 2007Flood$300,000
   National Weather Service narrative

   The pattern remained much unchanged from what it was the previous day. The dynamics were a bit weaker than the previous night, but high precipitable water values remained with about 1.75 inches indicated. CAPE was a bit more limited, however the 1000 J/kg was sufficient for strong convection. The storms developed over northern Missouri and eastern Kansas, then merged over Iowa. Very heavy rain fell on already saturated ground and produced flash flooding in a few areas, and subsequently widespread flooding across much of the CWA. Numerous roads were closed by the flash flooding and some of the gravel roads around several counties were washed out. Many of the rivers in the state…

7. Apr 26, 2007Flood$250,000
   National Weather Service narrative

   A strong low pressure developed over eastern Colorado and moved southeast into northern Oklahoma by the 24th. Deep moisture was pulled north ahead of the low with surface dew points in the low 70s reaching northern Oklahoma. Strong isentropic lift took place over the Des Moines CWA and resulted in a large and sustained area of rain and embedded thunderstorms. Rainfall of two to over five inches of rainfall occurred over a large part of the CWA, with isolated amounts in the six to seven inch range over a 2 day period. This event brought about the flash flooding event of the evening of the 24th. The situation transitioned into a general areal flood event on the 25th, with several…

8. Jul 7, 2010Flash Flood$250,000
   National Weather Service narrative

   York Street washed out and was closed near the 400 block. Widespread basement flooding.

9. Jul 7, 2010Flash Flood$250,000
   National Weather Service narrative

   Fourth Street was washed out and closed near the 400 block. Widespread basement flooding.

10. Jul 21, 2013Flash Flood$250,000
    National Weather Service narrative

    The Lucas County dispatch reports flash flooding throughout much of Chariton. Multiple streets were closed and impassible due to running water of over a foot in depth.

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

114°FAug 9, 1934

All-time low

−38°FFeb 3, 1996

Warmest night

83°FJul 18, 1982

Coldest day

−13°FDec 22, 1989

Wettest day

11.23 inAug 27, 1903

Snowiest day

12.0 in3 times, most recently Mar 25, 1957

Hottest year

1921mean 54.8°F

Coldest year

1917mean 45.8°F

Wettest year

197353.84 in

Driest year

191013.77 in

Snowiest season

58.0 in1961-62

Station Chariton 1 E (USC00131394), 965 ft elevation, 1.8 miles from the population centre. Daily records from 1895 to October 27, 2026; 91.5% 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.

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 USC00131394.
• 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.