A dominant northwest to southeast flow is predicted to stay in place across much of the corn-growing region through the end of the week. As a result, no risk of corn earworm migration is predicted the next two nights. Low risks return to the Plains states by Friday night into Saturday morning and then expand north and east into the upper Midwest, Mississippi River valley, and also Great Lakes and eastern Midwest as high pressure moves back into the southeast United States and low pressure develops in the Plains states. South to southwest winds are likely to return to a good portion of the corn-growing region by this weekend but the primary source region is not expected to be as favorable nor are wind speeds so only Low risks are in place at this time. Corn earworm moth flights have occurred in scattered portions of the corn-growing region in the past several days so growers should continue to monitor their traps and take appropriate action where needed especially if any fresh market crops are at susceptible stages to damage.