I use cloth
Awning Hooks that has a grommet for the S hook. I have had as many as 10 of those, without the hook, rolled up in my awning without a problem. I would see no reason that you couldn't use these, even 14 to 20 if you wanted.
Awning Hooks
As far as storms, I watch the weather reports very carefully. I totally trust the
National Weather Service. Not so much for the weather forecast but for the wind speed and wind direction.
First of all be sure the awning rails are as tight as you can get them. I use the ratchet type straps with bungee cords around the tube and have my awning strapped down at both corners and also use 6 to 8 Velcro De-Flappers.
I do not raise my awning for winds of less than 30 MPH and that really depends on wind direction.
Secondly, know which way your rig is situated. Is the nose pointing north, south, east or west.
For example, If you are pointed north and the wind will be coming from the southwest, west or northwest you won't have much of a problem as that wind will be to the street side of you rig and will barely effect your awning.
Even if the wind is from the east but you have another rig or building within a short distance aside of you that rig or building will act as a wind break protecting you from the brunt of the wind. Even hedges or bushes will serve as wind breaks.
In Florida, I have had our rig sitting in 30 MPH winds with 40 MPH gusts with the awning down and never a problem. Of course we were pointed north and the winds were from the west and northwest. From October thru May I only put my awning up twice and one of those was when we traded our rig in