That's often misleading. The actual precip rate and base reflectivity panels show that it's a solid line with embedded bowing segments and such. Before more of the Euro parameters became publicly available on websites like weather dot us, PivotalWeather, etc., that used to be the best we had to go on, but we now have a clearer picture. I wouldn't rule out embedded supercells in the line, but what is modeled is linear with bowing segments and a fully solid line.The 00z and 12z Euro precipitation suggests more broken line than solid.