Ah yes, one of my favorites subjects. White Noise riser.
Reach for an oldie-but-goodie - Pentagon. It has white noise generation.
Turn on white noise for one of the oscillators.
You will want to adjust the Drive, Chorus, Delay (if you want) and EQ to sonic taste.
The Spread is really important as well, to give it that nice, wide sound.
Turn on one of the filters. You can use either Low-pass or Band-Pass. To test how it's going to sound, play with the cutoff. You will want to automate this in Sonar as this is what gives you the 'rise' (or fall) effect.
You will need to also add a reverb, since Pentagon does not have one. The Sonitus Reverb is a good choice, or for really smooth, the Lexicon (if you have it in your Sonar). You can play with whatever settings, but typically long, hall-like reverbs work well. If you have high frequency damping and feedback play with these as well. You can also automate the size of the reverb as well.
You can also add on a saw in the other oscillator(s) to make a pitched riser. In this case, you want to automate the coarse tuning knob (or maybe fine tuning knob) to have it go up in pitch along with the filter. You can play with the Level knobs to control the ratio of noise to pitch to your taste.
If you add a Sonitus compressor, you can then compress it with a bass drum sidechain and it will pump in time as well.
If you need further help/ideas, let me know. I might even try to work up an example (which will have to be in 8.5 for now until my X2 comes in).