Warped plywood

Posted by Mark on Oct 7, 2007

I live in Southern California, and when the Santa Ana winds kick in, we can go from slight humidity to extremely dry conditions very quickly. The temperature goes up about 20 degrees, too, but cools at night. Two days ago, my plywood panels for my Chesapeake 16 LT were perfectly flat. The Santa Anas moved in last night and this morning the panels are bowing, both lengthwise and crosswise. Should I put weights on them to try to get them flat again? If I don't do anything, will they go flat on their own when the weather goes back to normal?

Thank you,