Central Iowa QLCS

A Slight Risk was issued for most of Iowa on Thursday, April 23rd. This was due to the enhanced kinematics where a potential secondary vort max would eject near the base of the main trough. Shear values around 35-45 knots supported an organized squall line with the potential for one, or two discrete supercells further south. While the Low-Level Shear at 0-1 km was robust, the Deep-Layer Shear at 0-6 km was weaker which meant any tornadic storm that tried to spawn a tornado would not efficiently organize meaning the tornado potential was hindered. Although the QLCS did produce a few tornadoes, they were relatively weak and roped out immediately, showcasing the weak deep-layer shear.