Having looked at the radar situation, I take a look at the IR satellite image covering the same area. To get to the region of interest, click on the map image above, then select a region from the map that follows. Note that the CONUS option is parked over Mexico, which might not be inuitive. Once the regional sat picture is up, select Infrared (Col) under type in the upper left menu.

At the top of the image is a temperature/color scale, which will enable you to relate the color to a static air temperature. The temperatures shown are the cloud top temperatures, and this will give you a good idea of the cloud tops, based on what you know about the SAT. The basic idea, of course, is that orange cloud tops are warm, blue tops are cold. Of course, no clouds is usually warm, too, since you are looking at the IR temperature of the dirt...

Different regions can be selected here, as well as other options such as visible satellite imagery.