Morrison County, MN Environment & Hazard Risk
Relatively Low natural hazard risk, led by lightning. 450 storm events since 1996.
- Expected yearly loss
- $29.6M
- Relatively Low nationally
- Storm events since 1996
- 450
- Most often hail
- Flood insurance policies
- 49
- 0.2% of homes
- Hurricanes nearby
- 0
- Since 1851
Natural hazard risk
FEMA National Risk Index, December 2025
Overall risk
Relatively Low
Score 66.9 of 100
Social vulnerability
Relatively Low
Score 24.0 of 100
Community resilience
Very High
Score 93.7 of 100
Community resilience runs the other way: a higher rating means a community can recover faster.
Building value exposed: $12.7B · Agriculture value exposed: $508M · Risk-adjusted yearly loss: $27.1M
Risk by hazard
- LightningRelatively High$1.2M/yr expected annual loss, about 32 events a year
- WildfireRelatively Low$383K/yr expected annual loss, about once every 790 years
- HailRelatively Moderate$826K/yr expected annual loss, about 4.0 events a year
- Strong windRelatively Moderate$1M/yr expected annual loss, about 2.5 events a year
- LandslideVery Low$3,118/yr expected annual loss, about once every 6 years
- Cold waveRelatively Low$1.6M/yr expected annual loss, about 13 events a year
- DroughtRelatively Low$305K/yr expected annual loss, about 9.2 events a year
- TornadoRelatively Low$1.4M/yr expected annual loss, about once every 2 years
- Ice stormRelatively Low$56.7K/yr expected annual loss, about once every 3 years
- Heat waveVery Low$220K/yr expected annual loss, about 1.8 events a year
- Winter weatherRelatively Low$30.5K/yr expected annual loss, about 16 events a year
- EarthquakeVery Low$7,760/yr expected annual loss, about once every 9,091 years
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, hurricane, 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
- 49 of 22,312 (0.2%)
- Homes in high-risk flood zones
- 0
- Flood claims since 1978
- 50
- Claims paid since 1978
- $613K
Flood claims paid per year
- Severe flooding$21.7K · 5 claims
Storm history
Since 1996: 450 events, 1 death, $24.4M in damage
- Hail143
- Thunderstorm Wind109
- Winter Storm69
- Extreme Cold/Wind Chill25
- Tornado18 · 1 death
- Winter Weather14
- Heavy Snow11
- Flash Flood11
- Flood9
- Funnel Cloud9
Events per year
30 tornadoes on record (EF0 7, EF1 3, F0 8, F1 7, F2 4, F3 1).
Most damaging storms
Since 1996, ranked by deaths, injuries and damage
- Lightning07/18/2001
Camp Ripley, Morrison County
25 injured
What happened
One U. S. Marine Reservist was critically injured, but survived and was released the next afernoon. Twenty four others were treated and released within hours of the strike.
- TornadoF3, 9 mi path, 800 yd wide09/19/1997
Lastrup, Morrison County
1 death, 1 injured, $1.7M damage
What happened
Several buildings destroyed and numerous other buildings damaged. Hundreds of trees down. A number of cattle killed in barn collapse. One man injured when the tornado engulfed his car and threw it into a nearby woods. A second man critically injured when his garage collapsed. He died several weeks later.Total path length of tornado from 1 NE of Lastrup to Onamia was 17 miles.
- Flood06/24/2003
Morrison
$8M damage
What happened
County wide flooding. Several periods of heavy rain produced 8 to 12 inched across Morrison county. Highway 371 was flooded between Little Falls and Randall, along with Highway 27 being closed from little Falls to Pierz when a culvert washed away and caused partial collapse of the road. Many other county and township roads were also closed due to flooding, along with numerous basements and driveways being washed out. Just North of Little Falls, two businesses were flooded and one was surrounded by water.
- Hail1.75" hail07/19/2003
Randall, Morrison County
$6M damage
What happened
The same storm that produced a tornado 7 SW Philbrook as well as downburst damage from 3 S Staples to 2 SE Lincoln also produced large hail that fell in the Randall area. Many fields of corn and beans were decimated.
- Flash Flood04/07/2001
Countywide, Morrison County
$2M damage
What happened
The same intense low pressure system that brought high wind to southern Minnesota also dumped a large area of 3 to 4 inches rain across west central and central Minnesota, on top of melting snow and saturated ground. Drainage ditches, still clogged with snow, were unable to accept most of this rain water. About 3000 homes in Stearns County and 500 homes in Benton County sustained water damage to basements. Several homes were flooded along Hawk Creek near Clara City (Chippewa County), as were about 50 homes in Chokio and Morris (Stevens County). Dozens of people were evacuated, though no injuries were reported. Hundreds of roads were submerged and some bridges flooded.
- Flash Flood06/24/2022
Randall, Morrison County
$1.5M damage
What happened
Nearly 30 homes were evacuated in the town of Randall due to flood waters spilling over the banks of the Little Elk River. Numerous roads and bridges were also damaged. The heaviest rainfall occurred before 4 am, but flood waters developed during the morning. Damage totals were provided by Morrison County Emergency Management.
Drinking water
9 community water systems serve about 14,559 people. Violations since 2021.
1 system had health-based violations, such as a contaminant over the legal limit or a missed treatment step. 2 systems had a violation of any kind still open at last report.
- Little FallsServes 9,069 · Groundwater · Local governmentNo health violations
- Rich Prairie Sewer and Water DistrictServes 1,531 · Groundwater · Local governmentNo health violations+2 monitoring or reporting
- RoyaltonServes 1,266 · Groundwater · Local governmentNo health violations
- MotleyServes 682 · Groundwater · Local governmentNo health violations
- RandallServes 608 · Groundwater · Local governmentNo health violations
- UpsalaServes 482 · Groundwater · Local governmentNo health violations
- SwanvilleServes 333 · Groundwater · Local governmentNo health violations+2 monitoring or reporting
- BuckmanServes 309 · 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 4 toxic release facilities in Morrison County
Superfund sites
None in this county.
Toxic release facilities
- U.S. Army National Guard Camp Ripley Ranges58,740 lbs released, Little Falls
- Wabash National47,703 lbs released, Little Falls
- Airborn Inc1.7 lbs released, Little Falls
- Jennie-O Turkey Store Swanville Feed Mill0 lbs released, Swanville
Total: 106,445 lbs in 2024, 47,767 lbs to air.
Superfund sitesToxic release facilitiesEPA inspections and enforcementAir toxics cancer risk13 historic places
Frequently asked questions
- How risky is Morrison County for natural disasters?
- FEMA rates Morrison County relatively low for overall natural hazard risk, with expected losses of $29.6M a year. The highest-rated hazards are lightning (relatively high), wildfire (relatively low), hail (relatively moderate).
- What storms are most common in Morrison County?
- Since 1996, NOAA recorded 450 storm events affecting Morrison County, most often hail (143), thunderstorm wind (109), winter storm (69).
- How many tornadoes have hit Morrison County?
- 30 tornadoes have been recorded in Morrison County since 1950, including 1 rated F3/EF3 or stronger.
- How many homes in Morrison County have flood insurance?
- 49 residential flood insurance policies are in force in Morrison County, covering about 0.2% of homes. The program has paid $613K on 50 claims here since 1978.
- What is the weather like in Morrison County?
- At Little Falls 2nne, average highs reach 85°F in Jul and lows fall to 4°F in Jan, with 27.2 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.