As a weather geek, there are certain things that really get me excited . One phenomenon is seeing Outflow Boundaries on radar! In the above image (click to enlarge), we had a severe storm in Crittenden County that had just weakened. As the air collapsed within the storm, an Outflow Boundary formed and moved away from the storm (especially West.) The outflow boundary is the line moving away from West Memphis in all directions. If you look closely, you can see a couple of boundaries. There is another distinct one crossing the Mississippi River. The lines on the radar image are not caused by rain, but by the bugs, dust, and debris from the gust of wind! Cool, huh?!?!
Have a great night,