Someone I know has a concrete walled garage that is built into

>>1239770
Just throw more glass at it.

A 24" by 36" piece of 1/2" toughened glass would cost about 80 bucks here.

>>1239791
This window gets used regularly fall/spring/summer so I'd rather not seal the whole thing up with more glass. I was thinking a barricade or something to keep it away from the window.

>>1239770
how about she gets off her fat ass and shovels it? i know she's fat. don't fight me on this.

I mean what is the problem? The window has broken before? She wants to open it with snow there?
Plexiglas hemisphere isn't crazy expensive as long as its small and pretty easy to diy with a heat gun and something vaguely round. but what would be the point of opening the window?

The obvious solution would be shutters on the outside but I can't understand why you haven't thought of that already...
You can go classic wooden or if your are fancy metal roller that goes right into the wall and is basically invisible when its up. Cost ain't too bad, you could put a motor on it and get it to read the weather reports too.

With a good idea of how the snow drifts a small concrete or brick retaining wall should help. Timber might help but depends how much snow there is.

>>1239796
You can make a usable window out of toughened glass. Though with a standard wood frame the snow will probably just push it through the wood.

A proper window should have no problem supporting snow against it. If the weight of the snow pushing against it is damaging it, the window needs to be replaced because there is something wrong with it.