Walthall County

Every recorded tornado

1. Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Walthall County: 7.
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. Aug 28, 2005Hurricane (Typhoon), Walthall$367 million
   National Weather Service narrative

   Hurricane Katrina was one of the strongest and most destructive hurricanes on record to impact the coast of the United States. It will likely be recorded as one the worst natural disaster in the history of the United States to date resulting in catastrophic damage and numerous casualties in southeast Louisiana and along the Mississippi coast. Damage and casualties resulting from Hurricane Katrina extended as far east as Alabama and the panhandle of Florida. Katrina developed from a tropical depression southeast of the Bahamas on August 24th. After moving through the Bahamas as a tropical storm, Katrina strengthened to a category 1 hurricane prior to landfall in south Florida…

2. Mar 15, 2025Tornado$5.0 million
   National Weather Service narrative

   At 1:24 pm, approximately 45 minutes after a violent EF-4 tornado had passed through the nearby area, yet another tornado would develop in Walthall County, MS near Claude Smith Road. Patchy tree damage was identified on high resolution satellite imagery away from the road over largely inaccessible and uninhabited areas. The tornado gathered strength quickly, just like its predecessor, and began producing an increasingly large and destructive path as it crossed MS Hwy 48 near J. W. Lee Road. The tornado then crossed US Hwy 98 only 2 miles east of where the EF-4 tornado crossed 45 minutes earlier. Video recordings showed a large wedge tornado. The tornado continued to intensify from…

3. Mar 15, 2025Tornado$5.0 million
   National Weather Service narrative

   A tornado entering Walthal County from Pike County, already over a half a mile wide, was still strengthening. Pockets of EF3 damaged occurred all along the path as it continued through Walthall County. West of Tylertown on the north side of Mississippi Highway 98, a well built, well anchored home, was swept from the foundation, leaving debris in a pile and thrown behind the home. This home was determined to have 170 MPH EF4 damage. It is likely the tornado was at EF4 strength at other parts on the track but with only manufactured homes in rural areas impacted, this house is currently the only EF4 damage in Walthall County. The EF3 damage throughout the county was all demolished…

4. Oct 2, 2002Tropical Storm, Walthall$1.7 million
   National Weather Service narrative

   Hurricane Lili, a major hurricane over the Gulf of Mexico, during the daylight hours of October 2, 2002 moved steadily northwest around 15 mph toward the Louisiana coast during the evening hour. The hurricane weakened rapidly to a Saffir Simpson Scale Category 1 Hurricane by the time it made landfall during the morning of October 3rd along the south central Louisiana coast. The hurricane moved north northwest across south central Louisiana before turning northeast across the northern portion of the Louisiana. While Hurricane Lili made landfall in south central Louisiana, tropical storm force wind gusts affected nearly all of south Mississippi during October 3rd as rainbands moved…

5. Aug 29, 2021Hurricane (Typhoon), Walthall$1.0 million
   National Weather Service narrative

   Minor to moderate damage to trees and homes was reported across the county. Most structural damage was exterior, such as shingle damage, carport damage, or fascia damage. However, some homes did suffer major damage due to falling trees. At the peak approximately 50% of the county was without power.

6. Mar 10, 2016Flash Flood$1.0 million
   National Weather Service narrative

   Observations and radar estimates indicated that 8 to 12 inches of rainfall in the evening and overnight hours resulted in widespread flash flooding. 13 houses had major flood damage or classified as destroyed along with 4 and 5 businesses. Flash flooding also destroyed a bridge and damaged 15 roads and destroyed three roads. The Bogue Chitto river reached its highest level since 1983.

7. Nov 15, 2006Tornado$500,000
   National Weather Service narrative

   A tornado, of strong intensity at several locations, entered Walthall County from Washington Parish LA. The tornado moved northeast across the southeast portion of Walthall County before exiting into Marion County. Several mobile homes were destroyed and roofs were blown off several frame houses. One injury was reported from an occupant of one of the mobile homes. Trees and power lines were also downed in a number of locations. Overall, the emergency manager reported 11 structures with major damage and 5 structures with minor damage.

8. Oct 9, 2020Tropical Storm, Walthall$500,000
   National Weather Service narrative

   Delta produced tropical storm force wind gusts leading to scattered minor impacts across the county. This included a few homes with shingle damage, a few trees downed and scattered power outages.

9. Apr 6, 2005Tornado$300,000
   National Weather Service narrative

   A tornado moved out of Pike County and entered Walthall County about 3 miles west northwest of Dinan and continued travelling north northeast until it dissipated approximately 2 miles west of Sartinsville. The tornado caused significant damage to 25 houses, 10 trailers, and 2 businesses in Walthall County.

10. Aug 29, 2012Flash Flood$250,000
    National Weather Service narrative

    Rainbands from tropical storm Isaac persisted over the region producing heavy rainfall. Secondary roadways were flooded along with a few houses.

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

106°FAug 30, 2000

All-time low

2°FJan 21, 1985

Warmest night

83°FJul 29, 1990

Coldest day

19°FJan 10, 1962

Wettest day

10.98 inOct 4, 1964

Snowiest day

4.7 inFeb 23, 1968

Hottest year

2023mean 68.3°F

Coldest year

1976mean 63.3°F

Wettest year

200285.53 in

Driest year

196336.86 in

Snowiest season

7.0 in1967-68

Station Mccomb Airport (USW00093919), 405 ft elevation, 20.7 miles from the population centre. Daily records from 1948 to October 26, 2026; 99.8% 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 USW00093919.
• 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.