...HEAVY RAIN AND FLASH FLOOD POTENTIAL TODAY INTO WEDNESDAY...

.Widespread moderate to heavy rain is expected much of central
Iowa today into early Wednesday. The rain has begin across
northwest and north central Iowa early this morning, with the
showers and storms expected to gradually spread southeast across
Iowa today into tonight. Repeated rounds of rainfall may lead to
widespread heavy rainfall totals and flash flooding. Many
locations are already saturated from recent heavy rainfall over
the past week. These wet soil conditions combined with increased
runoff from post-mature croplands will increase the threat of
flash flooding as well.

...FLASH FLOOD WATCH NOW IN EFFECT FROM 1 PM CDT THIS AFTERNOON
THROUGH WEDNESDAY MORNING...

* Widespread rainfall of 1 to 2 inches with areas of 2 to 4 inches
  expected. Locally heavier amounts in excess of 4 inches may
  occur by early Wednesday. Rain rates may exceed 2 inches per
  hour at times this afternoon through tonight.

* Low water crossings may become flooded, especially on secondary
  roads. Smaller streams may have rapid rises. Water may pond on
  roads and in fields. Urban areas may see significant ponding of
  water. Visibility in heavy rainfall may be restricted, with
  reduced speeds of travel.