When I make it out, I take my 16' alum side console out with that forecast. It's on the edge of my comfort zone. I prefer 10 kph or less ideally from the north or west. If the wind builds (or is forecasted) to 15 or more later in the day, no worries I just plan to leave the lake by lunch.
My experience has been if I cancel a trip with a forecast like Monday I usually regret it 4/5 times because the forecast doesn't hold true and I hear of good fishing reports and water conditions after the fact. lol. Worse case is I travel to the lake (an hour for me) and it was a wasted trip because the weather man was right or the conditions worsened than forecasted.
I have yet to see a forecast (when I am available to fish) or experience good enough conditions to feel comfortable to head out to the walleye areas. One of these trips the lake will be flat enough for me! Until then, just perching I guess.
Best of luck and go safe.