solar panel
 

Hi all,
hope I'm at the right spot, please forgive if not (if possible kindly point to where I might find help with this, thanks!)

Big favor to ask your smart brains:

We are hobbyists and need to add a (large) solar panel to an existing windsock/pole, but don't want to break the pole.

The solar panel powers a weatherstation + other stuff and all will be embedded in a "pyramide" style enclosure.

The pyramide is made of steel plates and is 1244mm x 800mm, height 404mm, the width of the top "ridge" is 100mm .
It is tilted by 123°.

The winds are horizontal and can be coming from the "front" (where the solar panel faces), or from the "back" (where the pyramid enclosure is).

Attached please find some drawings of it all.

Question: how much force is exerted at the maximum windspeed of 112Kmh (70mph)?

If this is too difficult, maybe a rough guestimation would do, too?
Like considering the whole thing as one flat panel against the wind?

Thank you in advance for your kind help with this big problem.