The latest update from the Storm Prediction Center this afternoon shows an enhanced risk of severe weather across much of the southwestern quarter of Iowa, along a line from Mapleton to Knoxville to Lancaster MO. The current expectation is that storms should begin in areas in north central Kansas and southern Nebraska, away from the areas where clouds and thunderstorms from earlier today impacted. Temperatures there have already peaked to the upper 80s to low 90s, and not to mention dew points in the upper 60s to low 70s creating a muggy-like and very destable atmosphere. Latest mesoanalysis from this afternoon shows multiple pockets of very high instability (4500-5500 j/kg for the enthusiasts out there). Once storms begin to fire, very large hail, damaging winds, and an isolated tornado will be possible.

Watches are already expected to come very soon across the Central Plains as storms begin to fire. Isolated and discrete supercells are expected initially with ample CAPE and flooding instability before possibly becoming bow-like as they move east to southwest into the area. These will continue trekking through the state overnight and will likely pose a local severe threat through the early morning hours.

Those in the affected area should pay extra attention to the weather tonight and be prepared to take action if necessary. Have your weather radios on and ready to go, should warnings or watches be issued. Stay tuned to the Iowa Weather Network for the latest information.