Ivasrus
Serious comment for you.
I did a couple of years in our HQ office that dealt with Wake Vortex, and your thoughtful inclusion of the respective runway layout has all the clues.
The vortex as we know is a rotating cone from the wingtip .....it also descends.
The clues in your case are the sidewind, the descending vortex, no ground features such as buildings or topography to break up the cone [overwater with possible energy uplift], and the degree of offset between the respective runway thresholds meaning that the SF34 would always be below the equivalent glidepath of the upwind parallel approach.......i.e. begging for it!
Your guys have probably figured this already.....just avoid the situation.