across the state dumping rain. take a look for yourself. you can see they are absolutely spilling over their banks. 2,000 people giving mandatory evacuations. a portion of interstate 10 is closed because of standing water and debby isn t done yet. the storm could bring in another foot of rain. we have the storm surge is an issue. explain to me, i know i see some water on days like this. where does the water come from and is it going away? reporter: sure. we always hear head into the right of where the storm makes landfall. even in the case of a tropical storm like this, that still the scenario of where you re going to see that on shore flow, that surge of water. when you have a storm like this that s been moving so slowly toward the coast, you ve had two days of nonstop wave action just coming and coming pushing this water on shore. it s not rain water flooding. it s tidal flooding. this is base shore boulevard here in the tampa bay area. earlier today we were over in st. p