A meteogram is a time-series graph of various weather parameters. This page allows you to display a graph of the last 48 hours of data for various reporting sites across the country.
Simply choose a state from the left drop-down menu. The middle drop-down menu will display the
available reporting sites for the chosen state. You can save the displayed site to the "Favorites" dropdown (if your browser has cookies enabled).
Want to know how it all works? Click here !