Poor choice of ridge venting, is what it sounds like.
Read this article.
Agree with Marcel.
This is the ridge vent I put on my house when I re-roofed it in 2007. Prior to that it had the old crappy metal vents that leak when it rains or a hurricane blows through town. This is easy to install. Their price seems a little high. I paid $84 for a case of them plus the cost of a bundle of three tabs to cover it. Has been dry as a bone since with many many bad storms since installation.
http://www.hardwareandtools.com/GAF-Materials-2027000CU-Snow-Country-Ridge-Vent-II-6389399.html
I would love to see photos and where the home is located.
In proximity to what. Hills , valley, large building and witch way was the wind blowing in relationship the the structure.
Has there been water infiltration during a rain storm?