This morning, the Storm Prediction Center had upgraded our slight risk which we first told you about on Friday to a moderate risk. This is because strong storms are expected tomorrow afternoon.
The SPC has highlighted an area from Des Moines to the southwest towards Topeka, KS. This is where shear and strong instability will result in an enhanced tornado threat. Several strong or long-track tornadoes do appear possible across this region as the low-level jet rapidly becomes focused late Sunday afternoon into Sunday evening. Large hail with hailstones greater than 2 inches in diameter will be possible with the more dominant supercells.Storms will initiate after 3pm and will be in central Iowa by 7pm.
One of the things that we will be watching overnight tonight that will affect the severe potential is the storm potential Sunday morning. There is a chance for rain early Sunday morning, and this makes tomorrows severe threat conditional. All residents of Iowa should be on alert and monitor the latest weather information closely tonight and Sunday into Sunday night. Both of our chase teams, including Dorothy will be out storm chasing tomorrow. Look for our live video tomorrow afternoon. We will continue to bring the very latest updates through the night tonight and during the day Sunday. Make sure to follow all of our social media accounts. We are on Facebook (Iowa Storm Chasing Network), Twitter (@IAStormChasing), and Instagram (@IowaChase). Our team also has twitter, Lead Forecaster Zach Sharpe (@StormchaserZach), Storm Chaser Ben McMillan (@WeatherLiveTV), and Team Dorothy (@ISCNTeamDorothy).