Carmen dropped moderate rainfall along its path, though the heaviest rainfall occurred well to the east of the storm's center, in southern Alabama and the northern Florida Panhandle. Precipitation peaked at over in Atmore, Alabama. Winds gusted up to , and along the coast, tides ran as high as above normal. Over northwestern Louisiana, winds ranged from and brought down several trees. In New Orleans, despite wind gusts to , minimal damage was reported. The hurricane's effects in Baton Rouge were confined to strewn debris and a few downed trees. Because Carmen moved ashore over uninhabited marshland, it caused far less damage than initially feared. Nonetheless, tidal flooding from the Gulf of Mexico and coastal bodies of water was severe. Freshwater flooding was less extreme. In total, the storm inundated of land in Louisiana, including in Terrebonne Parish and in Plaquemines Parish. A large oak tree was overturned by high winds in the town of Jeanerette in Iberia Parish.