A Flash Flood Emergency has been declared in Northwest Louisiana, including the city of Shreveport, where over a foot of rain fell in just 24 hours, from Tuesday morning through Wednesday morning. At Shreveports's Barksdale Air Force Base, 13.16" had fallen as of 10 am EST Wednesday, and over 14 inches of rain fell just to the southeast of Shreveport near Bossier City.

The heavy rains have led to numerous high water rescues and flooded homes and streets. Near Shreveport, up to 80 homes were flooded and a nursing home had to be evacuated due to rising waters, according to the Associated Press, and evacuations have been ordered in Greenwood, Haughton, Homer, Minden and Rayville, Louisiana. The flooding problems extend into Eastern Texas, where multiple bridges have been washed out northeast of Marlin, Texas.

Although the heaviest rains moved out of Eastern Texas and Northern Louisiana late Wednesday morning, near-record levels of atmospheric moisture for this time of year--more than 200% of average--remain in place over the region, and renewed rounds of heavy rain are likely through Friday. Extreme flooding rains were spreading into Southern Arkansas on Wednesday morning, and rainfall amounts of a foot in 24 hours are possible there, as well. Additional major flash flooding over the next few days is also possible in Houston, San Antonio, Austin, Shreveport, Little Rock, Memphis and New Orleans.

http://www.wunderground.com/blog/JeffMasters/flash-flood-emergency-in-northern-lousiana-over-a-foot-of-rain-in-24-