Does it make sense to anyone that this kind of data should be layered on regular mapping applications (directions, traffic, shops)? Or is it too much?

I like the idea of visiting Google Maps, for example, and being able to toggle snippets of this kind of weather data onto the map itself. Other useful, one-click, toggles could include:

1. Real Estate Listings for a given area

2. Demographics

3. Forecasts & Historical weather info

4. Crime data

5. Local Events

6. Low-bandwidth settings

7. Access to publicly available real-time streaming cameras