Severe storms to target parts of the Plains this weekend AccuWeather 2 hrs ago Mary Gilbert After rounds and rounds of flooding downpours brought record rainfall and serious flooding danger to portions of the southern Plains and Mississippi Valley this week, AccuWeather forecasters say a different threat will develop in the center of the country this weekend. Severe thunderstorms are set to rumble to life across portions of the High Plains on Saturday and Sunday. While this is good news for parts of Texas and Louisiana that were inundated with over a foot of rainfall this week, it is bad news for some residents of New Mexico, Colorado, Nebraska and the Dakotas.