Model guidance suggests that the low-level jet will
strengthen considerably during the evening, with forecast soundings
showing very favorable hodographs for supercells capable of very
large hail, damaging winds, and a few tornadoes. Considered adding
at 10% tornado threat area, but will defer to 20z update when
eventual position of the boundary is better defined.
Storms are expected to congeal into a bowing complex through the
evening, affecting portions of north-central MO with the threat of
rather widespread damaging winds and hail.