The rains started along with the gusts. This tarp is tied to the house on one side which could be interpreted as a tree and a tent pole with stake on the other. In this configuration I could make the guy outs too tight or the stakes would pop. As a result the tarp was flapping like crazy. Granted the rain was falling straight down so I would likely be dry. But you never know.
This is some serious bluster. The tent pole to the left comes off the ground.
The guy outs are simply not tight enough. A proper ridgeline between trees would be a good start.
The big drops in the foreground are from the gutters and the roof. The tarp was redirecting a lot of water.
The tarp is just not tight enough to the ground.