LIVE update on a legitimate tornado threat on tap for this afternoon across extreme eastern Iowa into northern Illinois and even southern Wisconsin. A surface low will gradually strengthen today while moving from northern MO into southern WI, accelerating a low-level jet stream ahead of it. A fast-moving line of storms and embedded supercells will race across northern IL this afternoon through evening, likely with many embedded tornado warnings. I’ll be breaking this down live this afternoon/evening as the event unfolds. NEVER STOP CHASING!