This widget is designed for kayakers to determine local (and surrounding) water levels of popular rivers. It can be added to the home screen as a 1x1 or 1x2 widget, in the 1x1 mode it will just show the top 6 entries, which are the most local to Louisville.
New version has a much improved user interface. Allows you to add new gauges by searching a list of all USGS gauges. Displays weather local to the gauge. Provides CFS, gauge height, and water temperature on gauges where data is available. Data is retained when you leave all cell service areas.