Transmission fluid leak 04 auto

So I got some water in my trans when getting stuck in a hole and did a full fluid flush. That was a few weeks ago and recently started driving it again and it was shifting hard so I went to drain some fluid to put some additive in and I found my skid plates covered. There seems to be a substantial leak when it gets warmed up, doesn't seem like it's a continuous leak . Any idea where it would be from? Looks like around the rear main seal but everything I'm finding says that usually causes a oil leak.