Your hourly forecast is nice and clean. Have you considered adding greater detail to the precipitation icons? Percent probability or estimated total QPF? Either way, I think this is an easier presentation than the hourly weather graphs on NWS.
Bottom line, I'll keep checking back to see how things develop.
EDIT: Forgot to add - good job making the map responsive to zooming and panning. That is one thing that drives me nuts with many radar/map implementations.