For an hourly update on weather all across the state (including Charlotte)
Click here.
For a summary of statewide conditions
click here.
For statewide warnings and advisories
click here.
For current conditions, forecasts, watches and warnings for Mecklenburg, NC
click here.

This is a very interesting page for radar and graphics:
Current Graphical Warnings, Imagery, and Radar from the Interactive Weather Information Network (IWIN)

Weather Channel