I noted a feature up in SD in my post#1383 - Your guess/ evaluation: Is that a squall line forming? Is it significant?
It was not there at all at noon today.
It seemed to be a reaction to the air being shoved by Ike in the multiple frames I looked at.
It could be a squall line. I looked at some other more recent radar maps and don’t see it anymore. They tend to be short lived like thunderstorms.
It’s behind a second front that is behind the one in the midwest. It could be the reaction you’re thinking of connected to Ike. It would make sense as the second cold front would be colder than the one preceding it so if the really warm air got that far, it would be more likely to form.
I would think that the only significance it would have would be to show how far the moisture from Ike is reaching. Unless it spawned tornadoes, then the residents there would think it had more.