A FLASH FLOOD WATCH is posted for the entire viewing area, through Wednesday evening. Additional rainfall of 1 to 3 inches with locally higher amounts will be possible. The most likely areas for heavy rainfall will be along and south of the I-10/12 corridor in Southeast Louisiana including portions of metro Baton Rouge and metro New Orleans. These heavier rainfall amounts could cause localized flash flooding issues. High rainfall rates could overwhelm drainage capacity. Ponding of water in low lying and poorly drained areas will be possible, and flash flooding could occur where the heaviest rain occurs.