The SPC is expecting a very busy day of severe weather as they have issued a moderate risk for portions of the Plains and the Midwest. Parts of Kansas, Nebraska, Iowa, Missouri, and Illinois are included in this enhanced
risk for severe weather. Some of the larger cities that will be under the gun are Kansas City, Des Moines, Lincoln, and Omaha. Outside this moderate risk, the SPC has a slight risk for parts of Montana, Wyoming, Colorado, and South Dakota as well. This is a classic late-spring severe weather set-up. In the upper-levels, very favorable dynamics will be
in place. At the surface, a low pressure will be intensifying in the Plains and will be enhancing the shear. There will also be several boundaries in place that will enhance uplift. Finally, all that will be needed will be fuel for storms and that will come from a fairly warm, and moist air mass in place across the region. With all these ingredient coming together, it is setting the stage for a widespread and intense severe weather outbreak. Morning convection is expected to be ongoing within the risk area. As daytime heating allows instability to build, the upper-level dynamics will move out of the Rockies and into the Plains. The dry-line will then move east and this will be all that is needed to have very strong and severe storms. Supercells are expected to develop that will be capable of producing all modes of severe weather. Large and violent tornadoes are possible, as well as damaging wind gusts, and very large hail, greater than two inches in diameter. After all that, there will be a threat for flooding too as very heavy rainfall will occur. This will be a prolonged severe weather event that will last most of the day, through the evening, and overnight. The most intense activity is forecast to occur during the evening and overnight hours, and that will make this event so much more dangerous. If you are in these areas, stay weather aware and make sure you have multiple reliable sources for severe weather notifications. By Wednesday, this system will be shifting east and the SPC has outlined much of the Ohio Valley in a threat for severe weather. Now is the time to get prepared. Follow us on Twitter. Like us on Facebook. Add us to your Google+ circles. MyWARN is available in the Google Play Store and as always our very popular iOS version is available for download in the iTunes Store. Get MyWARN now from the iTunes Store and the Google Play Store.