108 FPUS63 KDMX 191740 SFPIA IAZALL-192130- IOWA STATE FORECAST...UPDATED NATIONAL WEATHER SERVICE DES MOINES IA 1240 PM CDT MON JUL 19 1999 .THIS AFTERNOON...PARTLY TO MOSTLY CLOUDY NORTH...PARTLY SUNNY SOUTH. SCATTERED THUNDERSTORMS LATE IN THE DAY. WARM AND HUMID WITH HIGHS IN THE MID 80S TO LOW 90S. .TONIGHT...PARTLY CLOUDY WITH THUNDERSTORMS LIKELY WEST. A CHANCE OF THUNDERSTORMS CENTRAL AND EAST. HEAVY RAINS POSSIBLE. MUGGY WITH LOWS IN THE UPPER 60S TO MID 70S. .TUESDAY...A CHANCE OF THUNDERSTORMS. OTHERWISE PARTLY TO MOSTLY SUNNY...VERY WARM AND HUMID. HIGHS IN THE MIDDLE 80S TO MID 90S. .TUESDAY NIGHT...A CHANCE OF THUNDERSTORMS...OTHERWISE PARTLY CLOUDY. LOWS IN THE LOWER TO MID 70S. .EXTENDED FORECAST... .WEDNESDAY THROUGH FRIDAY...A CHANCE OF MAINLY NIGHTTIME AND EARLY MORNING THUNDERSTORMS...MOSTLY EAST AND NORTH. VERY WARM AND HUMID. LOWS IN THE UPPER 60S TO MID 70S. HIGHS IN THE UPPER 80S TO MID 90S. $$ MS JUL 99