OH YEAH, When mine was doing that I finally had to break down and replace the hatch seal. I did have a broken light that was allowing some to seep in but using the hose on the roof I found the majority of it was coming in on one corner of the hatch. I had to adjust the alignment to get it to close tighter on the new seal. Just putting in the seal didn't do the job.
Hope the rain is light in your area. We are getting almost an inch a day now.
