441 AM CDT SUN MAY 10 2015

SKIES ACROSS IOWA WERE OVERCAST EARLY SUNDAY MORNING. TEMPERATURES HAD COOLED INTO THE UPPER 50S AND LOW 60S. WINDS WERE FROM THE EAST AT 10 TO 15 MPH WITH GUSTS IN SOME LOCATIONS UP TO 25 MPH. A BAND OF SHOWERS AND THUNDERSTORMS WAS BEGINNING TO LIFT INTO WESTERN IOWA IN THE EARLY MORNING HOURS.

A SURFACE LOW PRESSURE SYSTEM WILL LIFT NORTHEAST INTO EASTERN SOUTH DAKOTA THROUGHOUT THE DAY TODAY. THIS LOW PRESSURE SYSTEM WILL BRING CHANCES FOR SHOWERS AND THUNDERSTORMS TO THE REGION SUNDAY. PRECIPITATION CHANCES WILL GENERALLY COME IN THE MORNING…AND AGAIN IN THE AFTERNOON AND OVERNIGHT HOURS.

THUNDERSTORMS MAY BE SEVERE…ESPECIALLY IN THE AFTERNOON…WITH LARGE HAIL…DAMAGING WINDS AND TORNADOES ALL POSSIBLE…ESPECIALLY IN IOWA AND WESTERN NEBRASKA AND SOUTH DAKOTA. AS THE SYSTEM PUSHES EAST…MUCH COLDER AND DRIER AIR WILL PUSH IN BEHIND FOR EARLY IN THE WORK WEEK. TEMPERATURES WILL BE BELOW NORMAL…WITH HIGHS IN THE 50S AND 60S TUESDAY…AND OVERNIGHT LOWS IN THE UPPER 30S AND 40S.

A WARMING TREND RETURNS WEDNESDAY.THROUGH THE END OF THE WEEK…ALONG WITH ADDITIONAL CHANCES FOR SHOWERS AND THUNDERSTORMS.