Hot and humid weather is predicted for this weekend across especially the central and southern corn-growing region as high pressure moves into the southeast United States and a series of low pressure systems traverse and develop in the northern and western Plains states. In between these two pressure centers, southerly winds are likely and may lead to some isolated corn earworm moth flights. The time of year, crop stage, and understanding that host plants are still attractive to corn earworm moths in source regions in Texas leads to only Low risks, but at least some level of risk is needed in the forecast given the favorable weather pattern. Low risks are in place beginning tomorrow night into Friday morning mainly across Kansas, Nebraska, western Iowa, and far western Missouri. Low risks then continue across the same area but also further east to near the Mississippi River Friday night into Saturday morning, and finally as far east as near the I-39 corridor in Illinois by Sunday night into Monday morning. A cold front is likely to push through the whole of the corn-growing region early next week which would end the overall migration threat at that time.