02/26/2025
LOW WINTER SNOWFALL BUT DEEP SOIL FROST DEPTHS AND SPRING RAINS KEYS TO FLOODING - Our trusty contact Jordan Wendt with the National Weather Service recently told WEAU TV (Eau Claire, Wisconsin) in a spring flooding report that one of the ways floods are dangerous is the variety of ways they can happen. “You have your regular river flooding where water starts to exceed its banks and starts overflowing into the land around it. We also have what’s most common in summertime is flash flooding where we have a lot of rain falling down in a short amount of time, and it can’t flow away from the location it fell in time so it starts to collect,” says Wendt. The report added, because there hasn’t been much snowfall, Wendt doesn’t expect as much flooding in the spring, BUT, he says that doesn’t mean nothing will happen. “We do have very deep frost depths in the soil. Any spring rain that does fall before the ground can thaw will likely lead to ponding of water, maybe flooded basements. That water will run off faster into the rivers, leading to higher rises that what you would see in the summertime,” says Wendt. ***As it looks right now in the longer term, Wendt adds, there is no clear signal that would suggest an above-normal spring for precipitation. There is a higher signal for above normal precipitation across the Ohio River Valley (40 to 60% chance), which will be something we will need to monitor if any of the systems that develop along this storm track shift northward. --Photos: Spring snow/ice thaw above a driveway; floodwaters leaving debris around Miss. River dock