We’ve started off busy this spring, with several rounds of severe weather, marked by organization and intensity. While storms, particularly tomorrow, stand to be nasty at times, the remarkable thing is how broad the coverage of this weather is expected to be.

The enhanced risk covers over 240,000 square miles, and features, initially a hail threat in the southwestern portion of the risk early in the day, transitioning to some supercells with a tornado threat centralized along the Ohio downriver from Louisville to the Mississippi south to Greenville, Mississippi. Ultimately, the cells will merge into lines, and strong wind in the southern Great Lakes will be the threat.

The upper level pattern features a broad trough over the middle of the country, setting the stage for broad instability. A couple of short waves at the upper levels will produce more focused inclement weather, and the bullseyes in different areas.

As with any nasty weather, it all depends on where it hits. The biggest thing about this system is that it is big, but the top end energy isn’t going to match some of the storms we’ve seen earlier this month. The geographic scope of the weather means it will be a headline maker, as well as a headache maker for anyone trying to travel.

More rough stuff is expected on Monday along the East Coast. The weather, again, looks to be weaker, but more people, more travelers will be impacted than even tomorrow.