Flowbot was designed so that I could spend less time refreshing AWW, but still stay on top of when flows hit certain levels.
It is a really simple tool. To use it, you just browse to a section of river you want to paddle on American Whitewater's website. Then paste the url into the form below, along with your target flow you want to be notified when it breaches. Use whatever flow units the gauge on the page you've linked uses. Enter in your email address, along with whether you want to be notified when the flow is above or below your target number, and then flowbot will keep an eye on it and contact you when your condition is met!