Natural Disaster Risk in Lyons

Natural Hazard Profile: Lyons, South Dakota

Lyons is a small unincorporated community in Minnehaha County, in the interior eastern United States. The area experiences harsh winters, hot summers, and significant seasonal variation, with severe blizzards and spring flooding shaping the pattern of natural hazards that residents encounter. Understanding the local risk profile is essential for anyone living in, moving to, or owning property in Lyons.

FEMA rates Lyons's composite natural disaster risk at 7.1 out of 10 — high risk. Freezing rain and ice accretion are the primary winter hazard, with glaze ice events capable of downing power lines, snapping tree limbs, and making roads impassable for days. Residents should also account for tornado and winter risk in their preparedness planning.

Lyons's risk score, considerably above the 4.9/10 state average and well above the U.S. national average of 4.5/10. Of the 18 hazard categories tracked by FEMA for Minnehaha County, the highest-scoring are ice storm, tornado, and winter. These scores reflect county-level data and represent the baseline risk that all communities in the county share.

With a high natural disaster risk rating, Lyons residents benefit from taking preparedness seriously. Reviewing insurance coverage for ice storm and secondary hazards, registering for emergency alerts, and maintaining a household emergency kit are practical steps that can significantly reduce impact during a major event.