Water leaking in from Cabin Top

I have a 1989 N-33… it’s leaking at the cabin top at the bulkhead on the port side forward cabin.

Does anyone recognize this piece of wood brace that is on the bedside of the bulkhead on the port water is coming in down this wall and I’m wondering where the water is coming from…. there is nothing above it!

Any help would be greatly appreciated. The good news is…. It only leaks when it rains!!! But, my pillow stays wet for days! :frowning: