“If we do get the 5-6 inches above Cairo, Ill., …  and points along the Upper Mississippi where it would drain directly into the river, we may see about a foot bump up” in the Mississippi’s water level, Anderson said. “The main concern is if there is a significant rise and no rain behind it, that might move the sand back into the channel from the sides of the channel.”

As for rainfall and Arkansas’ drought, Isaac will help some, but much more is needed, said Deborah Tootle, associate professor-Community and Economic Development for the University of Arkansas Division of Agriculture.

“The National Weather Service tells us that the southern part of the state, below I-40 needs close to 12 inches of rain to end the drought,” she said. “Northern Arkansas needs 15 inches or more.”

For more information on flood preparedness see here.

Tornado preparedness tipsheet available here.