In article ,
"Charles" wrote:

Sure looks like a clogged downspout and, as others have posted, a sagging
gutter plus a leaking joint as well.

I agree. I also wonder if that isn't the location of direct out-fall from
another system above such as a dormer or second story. Given that, a heavy
rainfall would cause what is pictured. In that case, a deflector at that
location might help. Wotta pain: Right over the garage door.
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JR