A predominantly northwest to southwest flow weather pattern is predicted for the next several days across much of the corn-growing region. A cold front is predicted to move through the Midwest and Great Lakes region by this weekend, but only a brief period of southerly winds is anticipated ahead of this feature and originating from a largely unfavorable source region where moth populations are typically less. As a result, only Low risks are in the forecast in the next five days and mainly confined to areas west of Lake Michigan. Low risks are predicted generally west of the Mississippi River and as far north as South Dakota and southern Minnesota tomorrow night into Friday morning as southerly winds increase to the east of a developing low pressure system in the Plains. As the low pressure system moves northeast into the upper Midwest and a cold front pushes southeast across the Plains and western Midwest, Low risks will continue as far east as into Illinois and southern Wisconsin to the east of the front. A Low risk is also in the forecast at the very end of the five day period across Kansas and Nebraska as southerly winds increase ahead of the next low pressure system that is predicted to develop across the western Plains by that time.