The National Weather Service in Omaha has issued a * Severe Thunderstorm Warning for… Northwestern Fremont County in southwestern Iowa… Mills County in southwestern Iowa… Southwestern Pottawattamie County in southwestern Iowa… Sarpy County in east central Nebraska… Northeastern Lancaster County in southeastern Nebraska… North central Otoe County in southeastern Nebraska… Southeastern Douglas County in east central Nebraska… Southeastern Saunders County in east central Nebraska… Cass County in southeastern Nebraska… * Until 615 AM CDT. * At 542 AM CDT, severe thunderstorms were located along a line extending from 5 miles southwest of Underwood to near Walnut Creek Recreation Area to 3 miles north of Greenwood, moving southeast at 45 mph. HAZARD…60 mph…..