(CNN) — Tropical Depression Cristobal — the third named storm of what is expected to be an active hurricane season — threatens Louisiana with flooding and storm surges after making landfall between the mouth of the Mississippi River and Grand Isle.

Impacts from the storm’s landfall will be felt hundreds of miles away. Neighboring states to the east such as Florida, Alabama, Mississippi, Georgia, even the Carolinas will pick up several inches of rain in a short period of time which could trigger flash flooding.

Widespread rainfall along the coast will likely be in the 5-10 inch range, with some areas picking up at least a foot total. These numbers alone would be impressive and cause flooding, but the problem for some of these states is that they have been dealing with excessive rains for the past month, so the ground is already saturated. This will exacerbate the flooding concern for states like Louisiana, Arkansas, and Florida, which have already received at least 8-10 inches in just the last 30 days.

The storm will continue to progress northward into states including Iowa and Wisconsin that rarely see tropical systems in their backyard. While the storm will significantly weaken once it makes it that far north, it will still be able to produce several inches of rain for cities like Madison and Oshkosh, Wisconsin, as well as Cedar Rapids and Dubuque, Iowa.

In addition to most Gulf Coast states, Arkansas and Missouri are also under flood watches in preparation for heavy rainfall to those states in the next 72 hours.

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