Columbus receives around 1,020 mm (about 40 inches) of rain a year, fairly evenly spread across the seasons, with spring and summer bringing the most active convective thunderstorm activity typical of the wider Ohio Valley. The Scioto and Olentangy rivers running through the city have a documented flood history, most notably the catastrophic 1913 flood that reshaped the city’s approach to flood control for the following century. Faster-moving summer storms, sometimes severe, are a separate and more routine hazard capable of flash flooding specific streets. Because these two risks operate on different timescales, radar is most useful for tracking the faster local storms. NWS Doppler radar KILN (Wilmington, OH) covers the region.
Learn more: How Does Rain Radar Work? · Open the full Rain Map