One thing that I have found is that the radar imagery is more accurate than the weather radars published by the local TV stations. TV stations over hype the intensity of the rain fall. This app is more accurate at predicting intensities. The timeline is accurate at times, but the algorithm seems too simplified for predicting sliding rain fronts. Biggest drawback is the lack of a detailed background map and the ability to zoom out to the whole country. Thus this app is a nice second-source but not a replacement for the free local news weather app.
Gribbly Snard about RainAware Weather Timer, v1.9.6