Storm Surge does tend to get big queues so doing it earlier might not be a bad idea. Saying this, personally, I'd ride a coaster first because they tend to be popular. Maybe try Inferno and then head to Stealth.
I wouldn't classify Storm Surge as a must ride so don't focus too much on riding it. I find it kind of dull. Don't stress out about riding everything - it means that you can't relax and enjoy the park.
Have lunch either early or late, because that can dramatically shorten your queue time.
Don't forget less publicised attractions such as X, Rumba and Angry Birds 4d. All of them are great fun.
Ride The Swarm near the end. Due to its proximity to the entrance, it is very popular in the morning so if you wait it will probably have a 20min max wait in the afternoon.
Enjoy your day and hope this helps!