The next in a continuing series of cold fronts is expected to pass through the corn-growing region during the upcoming weekend. Ahead of the front, modest south to southwest winds are expected along with generally above average temperatures and precipitation near the front. As a result, Low black cutworm migration risks are in the forecast beginning tomorrow night into Friday morning from the Plains into Minnesota, far western Wisconsin, and across much of Iowa. Low risks then shift southeast Friday night into Saturday morning as the front begins to move southeast, with risks focused mainly east of a line from near Kearney, Nebraska to Sioux Falls, South Dakota and Minneapolis, Minnesota, and as far east as southern lower Michigan and northwest Ohio. No additional risks are predicted after midday Saturday as flow is expected to turn more westerly and the air mass ahead of the front increasingly contaminated with clouds/rainfall.