504 AM CDT TUE AUG 18 2015

THUNDERSTORMS WITH HEAVY RAINFALL AND GUSTY WINDS MOVING ACROSS SOUTHWEST IOWA. A CLUSTER OF THUNDERSTORMS ARE MOVING ACROSS SOUTHWEST INTO SOUTHERN IOWA TO THE EAST NORTHEAST AT 20 MPH. THESE STORMS ARE CAPABLE OF PRODUCING HEAVY RAINFALL OF AN INCH TO AN INCH AND A HALF AND WIND GUSTS TO 35 MPH.