After a rather cold start to the week across much of the corn-growing area, an increase in southerly winds will lead to much warmer temperatures along with chances for black cutworm migration as early as tomorrow night into Wednesday but more likely later in the week and into the weekend. The very active weather pattern comes with some uncertainties both temporally and spatially especially later in the week, so migration risks are conservative for now but will likely be increased in subsequent forecasts this week. Low risks are in place tomorrow night into Wednesday mainly west of Lake Michigan and the I-57 corridor in eastern Illinois in response to southerly winds with the first system. Low risks then focus across the Great Lakes and eastern corn-growing region Wednesday night into Thursday, but then re-load west of Lake Michigan and spread across much of the corn-growing region especially east of I-35 and the Missouri River by late week and into next weekend.