Black cutworm migration risks return to the forecast by late week and into next weekend as southerly winds increase to the east of a developing low pressure system east of the Rocky Mountains. The majority of southerly winds should be confined to the Plains and western Midwest during this time as high pressure across the Great Lakes and an upper level low pressure system across the Ohio River valley both act as blocking mechanisms to the eastward advancement of any southerly winds. Therefore, Low black cutworm risks are in the forecast starting Thursday night into Friday morning mainly west of I-35 and north of I-70, or from northern Kansas, Nebraska, and the Dakotas into western Minnesota, western Iowa, and far northwest Missouri. Growers in these areas may see some isolated flights from this time into the weekend. More widespread risks further east are anticipated beyond this forecasting period.