Excessive Soil Moisture Likely To Carry Into 2020

(WNAX) — Record flooding is still underway on many rivers in eastern and southern South Dakota. That followed storms that dropped anywhere from three to eleven inches of rain over much of that area. Mike Gillispie, a hydrologist at the National Weather Service in Sioux Falls, says it is a part of a stubborn trend…

“It’s just a continuation of…of the very wet pattern that we’ve seen for the last you know, couple of years now. We’re looking at just how wet it’s been from late to mid-winter to on through spring and summer. We’ve had some periods where things dried out a little bit, but overall, you know, we are looking at record or near-record amounts of precipitation over the last you know, eight to 12 months in most areas of southeast South Dakota.”
Gillispie says there are a number of reasons for the excessive runoff…

“You know, the fact that we…a lot of areas did not get crops in that help use up some of that moisture in the soils and as the rain falls, those crops aren’t in this year, so those soils remain wet and we didn’t… have that evapotranspiration that was occurring that would normally occur with the crop.”
Gillispie says it looks like the wet ground conditions will carry over into next year…

“Well everything is just kind of compounding to…you know, unfortunately it’s setting the stage for where were gonna be heading through the fall with very wet conditions again, now and we’ll have to see how things progress and get into early winter.”
The extended forecasts into early October now call for above normal temperatures and below normal precipitation.