985 AWUS83 KDMX 180956 RWSDMX IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-081>086- 092>097-181800- WEATHER SUMMARY FOR IOWA NATIONAL WEATHER SERVICE DES MOINES IA 456 AM CDT THU SEP 18 2014 SKIES WERE GENERALLY CLEAR OVER THE STATE LAST NIGHT WITH THE EXCEPTION OF SOME PATCHY CLOUDS OVER THE NORTHWEST AND THE FAR SOUTH. PATCHY FOG FORMED...MAINLY IN LOW LYING AREAS...WITH VISIBILITY REDUCED TO LESS THAN ONE QUARTER OF A MILE AT TIMES. TEMPERATURES RANTED FROM THE MID 40S OVER THE NORTH...TO THE LOW 60S OVER THE SOUTHWEST. WINDS WERE LIGHT EAST TO SOUTHEAST AT AROUND 5 MPH OR LESS. HIGH PRESSURE OVER WESTERN ONTARIO EXTENDS SOUTH INTO THE TENNESSEE RIVER VALLEY. THE HIGH WILL DRIFT EAST AS A WEAK FRONTAL SYSTEM APPROACHES FROM THE ROCKIES. THE SYSTEM WILL MOVE THROUGH THE UPPER MIDWEST BY LATE SATURDAY NIGHT. THE HIGH WILL BRING CLEAR TO PARTLY CLOUDY SKIES TO IOWA AND AREAS NORTH AND EAST TODAY INTO TONIGHT. CLOUDS AND SCATTERED SHOWERS WILL BE LOCATED TO THE WEST. AS THE FRONTAL SYSTEM FROM THE ROCKIES ADVANCES EAST AND THE HIGH RETREATS...THERE WILL BE AN INCREASED CHANCE FOR THUNDERSTORMS FRIDAY AND SATURDAY. HIGH PRESSURE WILL BUILD INTO THE UPPER MIDWEST SUNDAY INTO NEXT WEEK. THE HIGH WILL BRING COOLER AND DRIER WEATHER TO THE UPPER MIDWEST THROUGH MID WEEK. $$