A system over the central and southern Plains in addition to a new system emerging from the western United States could be the spark that ignites a risk for severe weather later this week and into the start of the weekend, AccuWeather meteorologists warn. Our first of a couple of severe weather risks will ignite over the plains late in the day Thursday as a system coupled with a plume of moisture from the Gulf of Mexico enters the area. Thunderstorms can turn severe in some areas, bringing risks