195 ABUS31 KDSM 162152 RWSDSM REGIONAL/IOWA WEATHER SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 455 PM CDT MON JUN 16 1997 ...REGIONAL... LOW PRESSURE OVER THE NORTHERN GREAT LAKES THIS EVENING IS FORECAST TO MOVE AWAY FROM THE REGION TONIGHT AS WEAK HIGH PRESSURE SETTLES IN FROM THE PLAINS. AREAS THAT CLOUDED OVER THIS AFTERNOON SHOULD CLEAR RAPIDLY THIS EVENING AS THE FAIR WEATHER SYSTEM MOVES IN. OVERNIGHT LOWS WILL DROP INTO THE 40S FAR NORTH TO THE 60S IN THE SOUTH. LOW PRESSURE IS FORECAST TO DEVELOP OVER THE NORTHERN PLAINS TONIGHT AND PUSH INTO THE MIDWEST ON TUESDAY BRINGING WITH IT A CHANCE OF THUNDERSTORMS DURING THE AFTERNOON AND EVENING HOURS. THE THREAT OF RAIN SHOULD EXIT THE MIDWEST BY WEDNESDAY MORNING OVER THE FAR SOUTHEAST WITH TEMPERATURES RETURNING TO NORMAL LEVELS FOR THIS TIME OF YEAR. HIGHS FOR THE REMAINDER OF THE WEEK SHOULD CLIMB INTO THE 80S WITH OVERNIGHT LOWS DIPPING INTO THE 50S AND 60S. ...IOWA... SKY CONDITIONS DURING THE MID AFTERNOON HOURS RANGED FROM MOSTLY CLOUDY NORTHEAST TO SUNNY OVER THE SOUTHWEST COUNTIES. A GUSTY NORTHWEST WIND WAS USHERING IN SOME DRIER AIR FROM CANADA WITH HUMIDITIES NOTICEABLY LOWER THAN 24 HOURS AGO. TEMPERATURES BY MID AFTERNOON CLIMBED INTO THE 70S NORTHEAST TO THE UPPER 80S SOUTHWEST. WIND SPEEDS RANGED FROM 10 TO 20 MPH WITH OCCASIONAL HIGHER GUSTS OUT OF THE NORTHWEST. SMITH