Greene County, MS Environment & Hazard Risk
Very Low natural hazard risk, led by hurricane. 200 storm events since 1996.
- Expected yearly loss
- $9.4M
- Very Low nationally
- Storm events since 1996
- 200
- Most often thunderstorm wind
- Flood insurance policies
- 32
- 0.4% of homes
- Hurricanes nearby
- 6
- 18 tropical storms or stronger since 1860
Natural hazard risk
FEMA National Risk Index, December 2025
Overall risk
Very Low
Score 42.2 of 100
Social vulnerability
Relatively High
Score 79.5 of 100
Community resilience
Very Low
Score 14.9 of 100
Community resilience runs the other way: a higher rating means a community can recover faster.
Building value exposed: $2.5B · Agriculture value exposed: $40.1M · Risk-adjusted yearly loss: $13.8M
Risk by hazard
- HurricaneRelatively Moderate$3.7M/yr expected annual loss, about once every 5 years
- WildfireRelatively Low$159K/yr expected annual loss, about once every 300 years
- TornadoRelatively Low$1.1M/yr expected annual loss, about once every 1 year
- LightningRelatively Low$169K/yr expected annual loss, about 82 events a year
- Heat waveRelatively Low$244K/yr expected annual loss, about 9.2 events a year
- LandslideVery Low$814/yr expected annual loss, about once every 2 years
- DroughtRelatively Low$33.3K/yr expected annual loss, about 14 events a year
- HailRelatively Low$100K/yr expected annual loss, about 2.7 events a year
- Cold waveRelatively Low$334K/yr expected annual loss, about 1.1 events a year
- EarthquakeVery Low$60.8K/yr expected annual loss, about once every 852 years
- Strong windRelatively Low$211K/yr expected annual loss, about 2.5 events a year
- Ice stormVery Low$17.1K/yr expected annual loss, about once every 2 years
- Winter weatherVery Low$10.7K/yr expected annual loss, about 1.3 events a year
Bars show the national percentile score (0 to 100) for each hazard. Dollar figures are expected annual losses to buildings, people and crops. Not rated here: avalanche, coastal flooding, riverine flooding, tsunami, volcanic activity.
Flood risk and insurance
National Flood Insurance Program and FEMA flood maps
Check the flood zone for an address
- Homes with flood insurance
- 32 of 7,767 (0.4%)
- Homes in high-risk flood zones
- 1,003
- Insured in high-risk zones
- 31 (3%)
- Flood claims since 1978
- 45
- Claims paid since 1978
- $651K
Flood claims paid per year
- Late winter severe storms$135K · 4 claims
- Flooding$18.2K · 9 claims
- Hurricane Katrina$15.2K · 5 claims
- Hurricane Isaac$0 · 1 claim
Storm history
Since 1996: 200 events, 1 death, $31M in damage
- Thunderstorm Wind70
- Hail48
- Flash Flood29
- Tornado22 · 1 death
- Tropical Storm5
- Winter Storm5
- Hurricane (Typhoon)4
- Lightning2
- Sleet2
- Drought2
Events per year
29 tornadoes on record (EF0 3, EF1 7, EF2 2, EF3 1, F0 6, F1 4, F2 4, F3 2).
Most damaging storms
Since 1996, ranked by deaths, injuries and damage
- TornadoEF3, 12.37 mi path, 500 yd wide04/16/2011
Leakesville, Greene County
1 death, 25 injured, $11.1M damage
What happened
The National Weather Service aerial survey revealed a continuous long track tornado from just west of Leakesville, Mississippi to Deer Park, Alabama. The tornado touched down west of Leakesville south of Highway 57. It crossed the highway, strengthened to EF-3 intensity, and then turned east toward the city of Leakesville paralleling Highway 57. The tornado damaged 98 homes: 47 with minor damage, 28 with major damage, and 23 homes completely destroyed. 14 businesses were completely destroyed. One fatality occurred in a destroyed mobile home. In Mississippi, the tornado did an estimated 11.1 million dollars worth of property damage to homes and businesses. The tornado continued east northeast into extreme southwest Washington County, Alabama.
- Hurricane (Typhoon)09/25/1998
Greene
$15M damage
What happened
Please see the narrative on Hurricane Georges under Alabama, Southwest, September 25-29, 1998.
- TornadoF2, 5 mi path, 400 yd wide02/19/1996
Richton, Greene County
4 injured, $150K damage
What happened
NUMEROUS TREES WERE TOPPLED AND SEVERAL MOBILE HOMES WERE DAMAGED BY A TORNADO THAT FIRST TOUCHED DOWN IN THE NORTHWEST PART OF GREENE COUNTY. THE TORNADO FIRST TOUCHED DOWN ABOUT SIX MILES EAST OF RICHTON ON MS HWY 42 AT ABOUT 220 PM CDT. THE TORNADO THEN SKIPPED ALONG THE GROUND TO THE NORTHEAST AND MOVED INTO WAYNE COUNTY ALONG MS HWY 63. NUMEROUS TREES WERE BLOWN DOWN ALONG THE PATH OF THE TORNADO AND SEVERAL MOBILE HOMES WERE DAMAGED. FOUR PEOPLE IN ONE OF THE MOBILE HOMES WERE INJURED. THE TORNADO WAS ON THE GROUND FOR ABOUT 5 MILES IN GREENE COUNTY.
- Thunderstorm Wind70 kt wind03/12/2001
Rounsaville, Greene County
2 injured, $50K damage
What happened
Severe thunderstorm downburst winds downed trees and overturned a mobile home in the community. Two occupants in the mobile home received minor injuries. The same line of storms also downed trees and produced roof damage to structures in the Leakesville area.
- Thunderstorm Wind70 kt wind06/06/1998
Countywide, Greene County
$1.5M damage
What happened
A line of severe thunderstorms moved across the county from west to east. The storms entered the county around 1020 pm and moved out of the county around 1100 pm. Trees and power lines were blown down throughout the county. Many trees were blown on homes. Four homes, six mobile homes and one business were completely destroyed. Eighteen homes, seven mobile homes and two businesses had major damage and twenty homes, four mobile homes and one business had minor damage. No injuries were reported.
- TornadoEF2, 1.77 mi path, 400 yd wide04/18/2022
Avera, Greene County
1 injured
What happened
A QLCS produced a tornado off of Highway 63 and Lovewell Road|south of the town of Avera, initially snapping and uprooting|trees. One of the trees fell onto a vehicle near a manufactured|home. As the tornado moved southeast it strengthened into an EF-2,|snapping and decimating many large hardwood oak trees. The degree|of damage to these trees were enough to support a higher end|intensity estimate. A large tree limb from one of these oak trees|was turned into a projectile and injured a woman when it pierced|the side of the aforementioned manufactured home. The tornado|proceeded southeast, continuing to destroy hardwood trees in its|wake. It passed through an open field before coming upon more|trees and a small manufactured home. It snapped and uprooted many|of these trees (both soft and hardwood), with two falling onto the|manufactured home. The tornado then likely weakened to an EF-1|and continued southeastward, almost parallel to Highway 63. It|lifted and dissipated just before it reached Avera Road, but not|before tossing a large grain holder and tearing off metal portions|of a nearby barn roof. Debris from this roofing was seen strewn|out over the field.
Drinking water
7 community water systems serve about 10,871 people. Violations since 2021.
1 system had health-based violations, such as a contaminant over the legal limit or a missed treatment step. 1 system had a violation of any kind still open at last report.
- Beat III W/A #1-Sand HillServes 3,881 · Groundwater · Public and privateNo health violations+2 monitoring or reporting
- Town of LeakesvilleServes 2,616 · Groundwater · Local governmentNo health violations+4 monitoring or reporting
- Town of State LineServes 1,600 · Groundwater · Local governmentNo health violations+8 monitoring or reporting
- S E Greene Water AuthorityServes 1,375 · Groundwater · Public and privateNo health violations+4 monitoring or reporting
- Neely UtilitiesServes 499 · Groundwater · Private2 health violations+4 monitoring or reporting
- Leaf Water Association-SouthServes 459 · Groundwater · Public and privateNo health violations+2 monitoring or reporting
- Town of MclainServes 441 · Groundwater · Local governmentNo health violations
Largest systems by population served. Monitoring and reporting violations mean required tests or notices were late or missing, not that the water was unsafe.
Pollution sites
0 Superfund sites and 0 toxic release facilities in Greene County
No Superfund sites or toxic release facilities in Greene County in our data.
Superfund sitesToxic release facilitiesEPA inspections and enforcementAir toxics cancer risk2 historic places
Frequently asked questions
- How risky is Greene County for natural disasters?
- FEMA rates Greene County very low for overall natural hazard risk, with expected losses of $9.4M a year. The highest-rated hazards are hurricane (relatively moderate), wildfire (relatively low), tornado (relatively low).
- What storms are most common in Greene County?
- Since 1996, NOAA recorded 200 storm events affecting Greene County, most often thunderstorm wind (70), hail (48), flash flood (29).
- How many tornadoes have hit Greene County?
- 29 tornadoes have been recorded in Greene County since 1950, including 3 rated F3/EF3 or stronger.
- How many homes in Greene County have flood insurance?
- 32 residential flood insurance policies are in force in Greene County, covering about 0.4% of homes. The program has paid $651K on 45 claims here since 1978.
- What is the weather like in Greene County?
- At Beaumont Expstation, average highs reach 94°F in Aug and lows fall to 36°F in Jan, with 63.9 inches of rain a year (1991-2020 normals).
Source: FEMA (National Risk Index, NFIP), NOAA (Storm Events, HURDAT2, Climate Normals), EPA · Last updated 08/01/2026 · Storm counts include events in forecast zones that touch the county. This product uses the FEMA OpenFEMA API, but is not endorsed by FEMA.