I'm trying to figure out the calculation for amount of force against the poles/ground I have going up out of the ground, to hold an array of 3 solar panels (9ft by 5ft combined roughly), where each panel is 40lbs, and frame material not 100% defined but likely wood/metal combo, with concrete poured to anchor to (but, again, I'm not sure how much force will be against the panels from wind, versus how much I need secured to the ground).
Highest wind here recorded was 111mph with 123mph gust wind. I read solar panels can handle 140mph winds, however, I need to figure out a strong enough frame for the 3 panels in the wind.
How would I approach calculating this? I have no wind force calculation experience, and I didn't find immediately clear math to solve for it on google.