Alert Ringtone Setting - I LOST IT!

Okay folks, I have three different tones set on my Droid: The main Ringtone, the Notification Ringtone, and then the third one: an alert ringtone. When Weather Channel widget sends me a special alert, it goes off. I remember setting it, but for the life of me I can't find where that setting is now. :eek:

Did I explain that correctly? Probably not. Am I nuts for overlooking something right in front of me? Probably. Can you help me find that option? I hope so!

UPDATE: As it turns out, there is no way to adjust the alert ringtone after setting up the WxWidget. It's set up during, uh, setup. The only way to change it is to delete the widget and start over.