Here is an update from the NWS in New Orleans concerning the risk for flash flooding across portions of the area mid to late-week. 

Changes since Previous Update:

• No major changes.

Overview of Impacts:

• Today will mainly be one round of showers and storms in the form of a line. This line should be more progressive, but still could slow in some areas.
• The main concern will be any additional rain in the areas that were hit hard yesterday, these will be the areas to watch for flooding today.
• A few storms may be locally strong to severe today with damaging winds and tornadoes can't be ruled out.
• Multiple waves of heavy t-storms will persist at times into Friday, before the last round pushes through on Saturday, exiting to the east thereafter.
•  Additional rises on area rivers/streams will be possible.
• Dense fog persists this morning in some areas. This should start to clear out later this morning as rain arrives.

The attached images highlight the threats associated with this system. 

Additional Information

• Briefing