South Dakota · Preparedness Guide
October blizzards that kill tens of thousands of cattle overnight, spring tornadoes across the eastern plains, Missouri River flooding, and brutal Arctic cold across the open prairie.
About this guide
South Dakota's hazards span two completely different geographies. The eastern plains — flat, agricultural, tornado-prone — share more with Iowa and Minnesota than with the Black Hills in the west. The October 2013 Atlas blizzard killed 75,000 cattle in western South Dakota in a single storm — early October, when livestock were still on summer pasture with no shelter. The Missouri River floods catastrophically in wet years: the 2011 Missouri River flood caused $1.6B in damage and inundated communities for months. Tornadoes hit the eastern half of the state regularly from May through August. And South Dakota's winters are brutal — the Hi-Line and west river country see -40°F or colder multiple times per winter. After years as a Medicaid non-expansion state, South Dakota voters passed expansion by ballot in 2022 and coverage began July 1, 2023.
Local self-reliance starts with knowing your place.
Quick facts
Top hazards: Blizzards & Winter Storms, Tornadoes, Flooding
SD has expanded Medicaid — adults up to 138% FPL may qualify
USDA hardiness zones: 3b (northwestern SD / Black Hills / Mobridge) to 5a (southeastern SD / Sioux Falls)
Unemployment: up to $553/week for 26 weeks
Free or low-cost soil testing available through the state extension service
Seven topics, one state
Each section focuses on one question. Find what you need without wading through what you don't.
Official maps and tools for flood, fire, earthquake, water, dam, river, and local hazard awareness.
Am I at risk? →
Find nearby courses, extension programs, and emergency training that build practical skills.
Where do I learn? →
Connect with local gatherings, neighbor-help efforts, civic groups, and community support networks.
What's happening near me? →
Find official alerts, emergency agencies, trauma centers, and crisis-response information near you.
Who do I call? →
Use local frost dates, planting zones, soil data, extension calendars, and composting guidance.
What can I grow? →
Find food, utility, health, unemployment, and 211 resources before hardship becomes crisis.
Where can I find help? →
Find your county transit provider, demand-response ride service, and carpool matching options.
How do I get around? →
Simple step-by-step preparedness checklists for your home, family, garden, documents, and local risks.
What do I do next? →
Get specific
Enter your ZIP code to see real-time weather alerts, drought conditions, FEMA disaster declarations, and county-level resources.
Next steps
Know your risks
Flood zones, hazard maps, and the SD risks that apply to your county.
Local Risk ReadinessBuild the basics
The universal first step — before you personalize, get the 72-hour foundation in place.
First 72 Hours