A cold front is predicted to slowly push its way southeast through the central and eventually eastern corn-growing region tonight into tomorrow. Ahead of the front, showers and thunderstorms will become more widespread but south to southwest winds may also result in scattered corn earworm moth flights especially into the southern Great Lakes region ahead of the main rain area tonight into tomorrow morning. Moderate migration risks are predicted from northeast Illinois into northern Indiana, northwest Ohio, and southern lower Michigan with Low risks into southern Ontario, Canada and eastern Ohio. Once the front pushes through, no risks are predicted until Friday night into Saturday across virtually the same area as the Moderate risk tonight into tomorrow morning as another quick-moving cold front moves through. Then, Low risks focus across portions of Minnesota into northern Iowa, Wisconsin, and northern Illinois as the next in a series of progressive cold fronts moves southeast by early next week. Growers with crops at susceptible stages should continue to monitor traps and apply treatments where needed.