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Map of South Dakota with colored dots indicating river stage levels.

Where to Find Weather and River Forecasts

Weather and flooding concerns can develop and change rapidly. There are some excellent resources for real-time information for weather forecasts and river flooding that can be accessed online.

A car being towed a flooded, washed out gravel road by a national guard truck. Photo by Senior Master Sgt. David H. Lipp, U.S. Department of Defense

Floodwater: Road Crossing Hazards

During flooding, and when driving in the countryside we oftentimes encounter a creek or stream running on top of the road. Be aware that a course of water running over the road can turn into a very dangerous, even life-threatening situation if you attempt to cross it with your vehicle.

crop fields flooded by spring snow melt. USDA Photo by Lance Cheung

Managing Soil and Soil Fertility After Flooding

During floods, your fields will experience different amounts of erosion, sediment deposition, and crop residue accumulation. To avoid compaction of these soils it is crucial to let soils drain and dry out sufficiently before removing any large debris from fields or working the soil.

three grain bins in a flooded farm yard. Photo by John Shea, FEMA

Stored Grains and Flooding

According to the Food and Drug Administration, grain inundated by watercourses is considered adulterated and must be destroyed. The portion of the grain that is not affected by the water can still be salvaged for its use.

bottom part of a corn plant in soil with half of the roots exposed to show the seed trench (side-wall) compaction.

Planting Into Wet Soils

It is evident that there are high chances of planting into wet soils this spring. This is not a good decision when normal soil conditions appear to be attainable, but this year we may not have a choice.

A flooded garden

Flooded Gardens

Soil from gardens that were recently flooded may not be safe for growing fruit and vegetables this summer. Depending on the location, flood waters may contain contaminants or disease-causing organisms.

Rain shower over a field with several hay bales throughout. Courtesy: Krista Lundgren, USFWS

Fire Hazard in Wet Bales

Baled stored hay can get wet during spring as a result of melting snow or rainwater. These bales are also more susceptible to heating as they constitute and ideal substrate for microorganisms.

green plant leaf with white, powdery growth throughout

Plant Problems in Cool, Wet Soil

Wet, cool soils are prime conditions for many plant diseases to thrive. Lear more about some of the most-common cool, wet weather problems.

corn field with sunrise in the background

Best Management Practices for Corn Production

iGrow Corn is your unbiased, research-based guide to corn production, providing the latest recommendations to help increase yield, reduce input costs and protect your investment.

A color-coded map of the United Statees showing the precipitation outlook for August through October 2019. All of South Dakota is light green. Parts of Western South Dakota are a darker green.

Wet Conditions Likely Into Fall Season

Many locations in South Dakota have already received as much precipitation this year as they do in an entire average year. The latest climate outlook from NOAA’s Climate Prediction Center shows increased chances of wetter than average conditions to continue into the fall season.