[beeje]

Most awning on fifth wheels have enough pitch to allow water to run off without pooling. Some travel trailer awnings do not have enough picth and will collect water if not tilted to allow the water to run off.

As far as wind goes, as mentioned, the older manual style awnings can take much more wind because they are anchored down with arms toward the bottom of the camper.

Depending on where your unit is sitting would determine weather the awning could be left open. Example; Is it in the woods somewhat protected from the wind by the surrounding trees or is it out in the open with no protection.

Most of the time I camp in the woods my awnings can be left out even in strong storms since the wind mainly stays aloft. If camping, say at the beach, you must keep an eye on the weather for changing conditions and act accordingly. When at the beach we NEVER leave it open at night or when we are not near the camper