CNN is monitoring tropical storm Isaac as it makes its way towards the Gulf Coast. Isaac is projected to make landfall this evening, and states like Louisiana, Mississippi and Alabama are bracing for impact as the 7th anniversary of Hurricane Katrina approaches tomorrow.
National Hurricane Center Director Richard Knabb shares the latest advisory on tropical storm Isaac on "Starting Point" this morning.
“We could see very heavy rainfall totals,” Knabb says. “Some spots can see as much as 20-inches,” and lead to significant inland flooding.