Interesting:
SEVERAL TORNADOES HAVE BEEN REPORTED BY STORM SPOTTERS AND CHASERS IN REPUBLIC COUNTY.
Not often you hear storm chasers referenced in a short-fuse product.
It would seem there are really two storms here: the original storm that formed in Thayer County and the newer storm that formed along the flanking line across the border in KS. The original storm looks to be weakening - makes sense given how it's eating the southern storm's precip. The southern storm has taken on a small kidney bean appearance, although I'm having a hard time finding any sort of couplet. Like Stuart pointed out, the front may have undercut it.